Help for 3,4,5, and 6

Answers

Answer 1

I think you forgot to put an image, attach a new one with the questions.


Related Questions

(4x3 – 6x2 – 4x + 8) ÷ (2x – 1)
Use long division to find each quotient

Answers

Step-by-step explanation:

We can use long division to divide the polynomial (4x³ - 6x² - 4x + 8) by the binomial (2x - 1).

2x² + 2x - 4

2x - 1 | 4x³ - 6x² - 4x + 8

- (4x³ - 2x²)

---------------

-4x² - 4x

+ ( -4x² + 2x )

--------------

-2x + 8

- (-2x + 1)

----------

7

Therefore, the quotient is 2x² + 2x - 4, and the remainder is 7.

If 3/x = 5/y, what is the value of y/x?

Answers

Answer: 5/3

Step-by-step explanation:

1. 3/x = 5/y

2. Cross multiply

3y = 5x

3. Dividing the sides by 3

y = 5x/3

4. Dividing the sides by x

y/x = 5/3

Three fifths of what number equals one

Answers

21 because it is being multiplied

Pls help. Write an equation where the solution is 2.

Answers

Answer:

Step-by-step explanation:

x = 2 works lol

but if you want a more complicated one:

4x - 4 = 4

there's infinite equations

Re uploaded the pic. Please help

Re uploaded the pic. Please help

Answers

Answer:

It would.

Step-by-step explanation:

Give me a brainiest answer please and thanks sir!

Answer:

the second one

Step-by-step explanation:

if you want to find the outlier just search it up

Hamza wants to create a bumper sticker with his design. Bumper stickers usually have a height of 3 1/2​ inches. What will the width of his sticker be?

Hamza wants to create a bumper sticker with his design. Bumper stickers usually have a height of 3 1/2

Answers

The width of the bumper sticker is 6 1/4 inches .

What is the width of the bumper sticker?

In order to determine the width of the bumper sticker, the first step is to determine the relationship between the height of the design and that of the bumper sticker.

The relationship can be determined by dividing the height of the bumper sticker by the height of the design.

Proportion of the heights = 3 1/2 ÷ 2

5/2 ÷ 2

= 5/2 x 1/2 = 5/4 = 1 1/4

Now, multiply the proportion of the heights by the width of the design :

Width of the design = 1 1/4 x 5

5/4 x 5/1 = 25/4 = 6 1/4 inches

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Answer: 6 1/4

Step-by-step explanation: stickers that can be custom screen printed. The most common or average size is probably the 3″ X 11.5″

Write the expression. Then, check all that apply. twice the difference of a number and six A 2-column table with 4 rows. Column 1 is labeled Key Words with entries twice, the difference of, a number, six. Column 2 is labeled Replace with entries 2 times, (minus), n, 6. Replace “a number” with the variable, n. The two operations are multiplication and addition. The two operations are multiplication and subtraction. The constants are 2 and 6. The expression is written as 2(n – 6). The expression is written as 2 × 6 – n.


PLS HELP ME!

Answers

The expression for the sentence that is twice the difference of a number and six is given as follows:

2(n - 6).

How to write the expression?

The sentence for this problem is defined as follows:

"Twice the difference of a number and six."

The number is unknown, hence the variable that represents the number is given as follows:

n.

The difference between the number and six is given by the subtraction of n by 6, as follows:

n - 6.

(the - symbol represents the subtraction).

The expression twice is equivalent to a multiplication of the expression n - 6 by 2, as follows:

2(n - 6).

(the multiplication symbol is implicit before the parenthesis, meaning that the distributive property is applied).

Which is the expression that represents the sentence given at the beginning of the answer.

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Multiply the Polynomials:

(2x+3) (-x+2y-4)

Answers

The result of multiplying the polynomials is (2x + 3) (-x + 2y - 4) = -2x² + 4xy - 11x + 6y - 12

How to multiply the polynomials?

The polynomial expression is given as

(2x + 3) (-x + 2y - 4)

Expand the brackets in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = 2x * (-x + 2y - 4) + 3 * (-x + 2y - 4)

Open the brackets in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = -2x² + 4xy - 8x + -3x + 6y - 12

Evaluate the like terms in the above polynomial expression

So, we have

(2x + 3) (-x + 2y - 4) = -2x² + 4xy - 11x + 6y - 12

Hence, the solution is -2x² + 4xy - 11x + 6y - 12

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1. A population of insects is very dynamic, depending on many variables. A simple model for a particular species of insect is found to be as given. 3- 12 +16 PO) 15 - 2+1 What happens to this population in the long run, i.e. will it die out (extinction), boom (grow indefinitely), or settle into an equilibrium (stability)? Justify your claim with the appropriate mathematics. If the result is equilibrium, then give the value of the stable population.

Answers

Therefore, the insect population will remain stable, neither increasing nor decreasing and the estimated  stable population is 2.

Given the equation:3-12+16 PO) 15-2+1

In order to determine the stability of a population of insects, we must first calculate the equilibrium value of PO.

A population's equilibrium is defined as the point at which the population remains stable over time, indicating that the population is neither declining nor growing indefinitely.

Stable population equilibrium is defined as follows:

Let P* be the equilibrium value of the population.

This implies that:P* = 15 - 2 + 1 / 3 - 12 + 16

This simplifies to:P* = 14/7 or 2

Therefore, the equilibrium value of the insect population is 2. If the population is greater than 2, it will decrease. If it is less than 2, it will increase.

In this case, the population of insects will settle into an equilibrium state.

The value of the stable population is 2.

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how to adding and subtracting polynomials worksheet ?

Answers

Adding and subtracting polynomials worksheets assist pupils in becoming acquainted with the idea of polynomial addition and subtraction.

Adding and subtracting polynomial worksheets provide pupils with a platform to access a variety of well-structured problems. Because these worksheets progress in complexity, they are simple to use and allow pupils to reinforce their concepts.

Children must study in accordance with their learning curve, and these worksheets are designed to allow young brains to work at their own speed. These math worksheets also address the logical and reasoning aspects of arithmetic, assisting pupils in real-life situations.

Students may have a better grasp and explore these worksheets more quickly with the aid of pictures. These worksheets' step-by-step approach helps pupils better comprehend ideas and reinforce their comprehension.

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A statement of equality between two ratios is called a
a) Product
b) Proportion
c) Property
d) Relation
e) Percentage

Which one?

Answers

the answer is b, proportion!
proportion because i got this right

Sydney described a ruler as a length of plastic that starts at 0 and continues on to 12 inches. The geometric term that best describes Sydney's description is a

Answers

Answer:

Line segment because it is part of a line that has two endpoints which are the 0 inch mark and the 12 inches mark.

For a moving object, the force acting on the object varies directly with the objects acceleration. When a force of 45 N acts on a certain object, the acceleration of the object is 9 m/s2. If the force is changed to 20 N, what will be the acceleration of the object.

Answers

Answer:

4m/s^2

Step-by-step explanation:

if 45N =9m/s^2

20N= x

20N*9m/S^2/45N

=4m/s^2

18 + 18 + 18 + 18 - 24 + 1 + 3 + 5 + 7 + 20 - 23 =?

Answers

Answer: 61

Step-by-step explanation:

Use addition to solve the equation.

18 + 18 + 18 + 18 - 24 + 1 + 3 + 5 + 7 + 20 - 23 = 61.

Answer:

61

Step-by-step explanation:

Find the perimeter of a rectangular pool.

Length = 45.7 ft.
Width = 62.3 ft.

Perimeter = ?

Answers

Answer:

=> 216

Step-by-step explanation:

perimeter of the rectangular pool is

=> 2(l+b)

=> 2( 45.7 + 62.3 )

=> 2(108.0)

=> 216

; - ; ngl some things go downwards but still =u=

refer to the attachment v

Find the perimeter of a rectangular pool.Length = 45.7 ft.Width = 62.3 ft.Perimeter = ?

(430-24)What size feeder conductor (in ampere) is required for two motors. Motor 1) 7 ½ horsepower single phase, 230 volts (40 ampere) ; Motor 2) 5 horsepower single phase 230 volts (28 ampere) Terminals rated for 75 C.

Answers

To determine the size of the feeder conductor required for two motors, we must add the full-load current of each motor together. This will be our total amperage load. We will be using the ampere ratings of Motor 1 and Motor 2 provided in the question.

The formula to get the full-load current (FLC) is :Full-Load Current (FLC) = Horsepower x 746 / Voltage x Efficiency x Power FactorMotor

1- Full-Load Current (FLC) = 7.5 x 746 / 230 x 0.86 x 0.8 = 40 amps Motor

2:Full-Load Current (FLC) = 5 x 746 / 230 x 0.86 x 0.8 = 28 amps

Total Amperage Load = FLC of Motor 1 + FLC of Motor 2Total Amperage Load = 40 + 28 = 68 amps

Since, we have the amperage load, we can now refer to the NEC Table 310.16 to get the correct size of the feeder conductor.

We will assume that the conductors are copper, the terminals are rated for 75 degrees Celsius, and that the feeder is in free air. According to the NEC Table 310.16, a 4 AWG (American Wire Gauge) copper conductor is required for a 75-degree Celsius temperature rating and a 68-amp load.

Therefore, a 4 AWG copper conductor is required for this setup.

What size feeder conductor (in ampere) is required for two motors?The size of the feeder conductor required for two motors is 4 AWG copper wire with a total amperage load of 68 amps.


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Can someone please help on number 20? WILL MARK YOU AS BRAINIEST. (can you also show how you do the problem?) :(

Can someone please help on number 20? WILL MARK YOU AS BRAINIEST. (can you also show how you do the problem?)

Answers

Answer:

x =(22-√196)/6=(11-7)/3= 1.333

Step-by-step explanation:

(3x2 -  22x) +  24  = 0

The first term is,  3x2  its coefficient is  3 .

The middle term is,  -22x  its coefficient is  -22 .

The last term, "the constant", is  +24

Step-1 : Multiply the coefficient of the first term by the constant   3 • 24 = 72

Step-2 : Find two factors of  72  whose sum equals the coefficient of the middle term, which is   -22 .

     -72    +    -1    =    -73

     -36    +    -2    =    -38

     -24    +    -3    =    -27

     -18    +    -4    =    -22    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -18  and  -4

                    3x2 - 18x - 4x - 24

Step-4 : Add up the first 2 terms, pulling out like factors :

                   3x • (x-6)

             Add up the last 2 terms, pulling out common factors :

                   4 • (x-6)

Step-5 : Add up the four terms of step 4 :

                   (3x-4)  •  (x-6)

            Which is the desired factorization

Equation at the end of step 2:

 (x - 6) • (3x - 4)  = 0

STEP 3:

Theory - Roots of a product

3.1    A product of several terms equals zero.

When a product of two or more terms equals zero, then at least one of the terms must be zero.

We shall now solve each term = 0 separately

In other words, we are going to solve as many equations as there are terms in the product

Any solution of term = 0 solves product = 0 as well.

Which set of numbers are closed under subtraction?
Natural Numbers
Integers
Irrational Numbers
Odd Numbers

Answers

The set of numbers that provide closure under subtraction are Integers

If an archer shoots an arrow straight upward with an initial velocity of 128ft/sec from a height of 9ft, then its height above the ground in feet at time t in seconds is given by the function h(t)=−16t 2+128t+9. a. What is the maximum height reached by the arrow? b. How long does it take for the arrow to reach the ground? a. The maximum height reached by the arrow is ft. (Simplify your answer.) b. It takes seconds for the arrow to reach the ground. (Round to two decimal places as needed.)

Answers

Given:An archer shoots an arrow straight upward with an initial velocity of 128ft/sec from a height of 9ft, then its height above the ground in feet at time t in seconds is given by the function h(t) = −16t² + 128t + 9.

We need to determine the maximum height reached by the arrow and how long does it take for the arrow to reach the ground?We know that the arrow will reach its maximum height when the velocity of the arrow becomes zero.Maximum height:When the arrow reaches maximum height, velocity v = 0Hence, -16t² + 128t + 9 = 0Solving for t: ⇒ -16t² + 128t + 9 = 0 ⇒ -16t² + 144t - 16t + 9 = 0 ⇒ -16t(t - 9) - 1(t - 9) = 0 ⇒ (t - 1/16)(-16t - 1) = 0Thus, t = 1/16 sec (ignore the negative value)So, maximum height reached by the arrow is h(1/16) = -16(1/16)² + 128(1/16) + 9 = 17 ftTherefore, the maximum height reached by the arrow is 17 ft.How long does it take for the arrow to reach the ground?When the arrow reaches the ground, the height of the arrow will be zero.Hence, h(t) = 0 = -16t² + 128t + 9Solving for t: ⇒ -16t² + 128t + 9 = 0 ⇒ -16t² + 144t - 16t + 9 = 0 ⇒ -16t(t - 9) - 1(t - 9) = 0 ⇒ (t - 1/16)(-16t - 1) = 0So, t = 9 sec (ignore the negative value)Therefore, it takes 9 seconds for the arrow to reach the ground.

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A zoo has 9 lions. 6 are males. Find the ratio of female lions to male lions.

Answers

the ratio of female lions to male lions is 3:6
The ratio is 3:6! Hope this helps!

PLEASE HELP ME AS SOON AS POSSIBLE WITH EXPLANATIONS PLEASE!!!!!

PLEASE HELP ME AS SOON AS POSSIBLE WITH EXPLANATIONS PLEASE!!!!!

Answers

The statements true of the two-dimensional plane sections that could result from one of these slices made by Misha are B, C, D, E, and F.

What makes a two-dimensional plane sections?

A. False. The only two-dimensional plane sections that could result from slicing a cube with a plane are squares or rectangles, but not triangles.

B. True. A plane section that is square could result from one of these slices through the cube.

C. True. A plane section that is rectangular but not square could result from one of these slices through the cube.

D. True. A plane section that is triangular could result from one of these slices through the pyramid.

E. True. A plane section that is square could result from one of these slices through the pyramid.

F. True. A plane section that is rectangular but not square could result from one of these slices through the pyramid.

Therefore, the correct statements are B, C, D, E, and F.

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is 9.40 equal to 9.4

Answers

Answer:

no

Step-by-step explanation:

if it was 9.04 it would

its not equal because 9.40 is 10^2 but 9.4 is 10^1

If A And B Are 7x6 Matrices, And C Is A8x7 Matrix, Which Of The Following Are Defined?A) CAb) BCc) B^Td) B-Ce) A+Bf) BA^TI Assume That More Than One Of These Is Correct. Thanks For The Help
If A and B are 7x6 matrices, and C is a8x7 matrix, which of the following are defined?
a) CA
b) BC
c) B^T
d) B-C
e) A+B
f) BA^T

Answers

the following expressions are defined:

b) BC

c) \(B^T\)

d) B-C

e) A+B

f) \(BA^T\)

To determine which of the given expressions are defined, we need to consider the compatibility of matrix dimensions.

a) CA: Matrix multiplication is defined when the number of columns in the first matrix matches the number of rows in the second matrix. In this case, A is a 7x6 matrix and C is an 8x7 matrix. The number of columns in A (6) does not match the number of rows in C (8), so CA is not defined.

b) BC: Matrix multiplication is defined when the number of columns in the first matrix matches the number of rows in the second matrix. Both B and C are 7x6 matrices, so the number of columns in B (6) matches the number of rows in C (6). Therefore, BC is defined.

c) \(B^T\): The transpose of a matrix is defined for any matrix. So, \(B^T\)is defined.

d) B-C: Matrix subtraction is defined when the matrices have the same dimensions. Both B and C are 7x6 matrices, so B-C is defined.

e) A+B: Matrix addition is defined when the matrices have the same dimensions. Both A and B are 7x6 matrices, so A+B is defined.

f) \(BA^T\): Matrix multiplication is defined when the number of columns in the first matrix matches the number of rows in the second matrix. A is a 7x6 matrix, and \(A^T\)is a 6x7 matrix. The number of columns in A (6) matches the number of rows in \(A^T\) (6). Therefore, \(BA^T\) is defined.

So, the following expressions are defined:

b) BC

c) \(B^T\)

d) B-C

e) A+B

f) \(BA^T\)

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Help please... I need help on this , this is 8th grade math

Help please... I need help on this , this is 8th grade math

Answers

Answer:

1 is not true

2 is sometimes

3 is true all the time

4 is true all the time

Step-by-step explanation:

an urn contains 6 blue balls and 4 red balls. 6 balls are chosen at random and without replacement from the urn. if x is the number of red balls chosen, find the standard deviation of x.

Answers

The standard deviation of the number of red balls chosen, x, is 1.2.

In probability theory, the standard deviation is a measure of the amount of variation or dispersion in a set of values. It helps us understand how spread out the values are from the mean. In this scenario, we have an urn containing blue and red balls, and we are randomly selecting 6 balls without replacement. We want to determine the standard deviation of the number of red balls chosen, denoted by x.

To find the standard deviation of x, we need to calculate the variance first. The variance represents the average of the squared differences between each value and the mean. The standard deviation is then the square root of the variance.

Step 1: Finding the probability of selecting a red ball

In the given urn, there are a total of 6 blue balls and 4 red balls. To determine the probability of selecting a red ball, we divide the number of red balls by the total number of balls:

P(red) = 4 / (6 + 4)

          = 0.4

Step 2: Calculating the mean of x

The mean of x, denoted as μx, represents the expected value or average number of red balls chosen. Since the probability of selecting a red ball is 0.4, we can calculate the mean as follows:

μₓ = (Number of trials) × P(red)

   = 6 × 0.4

   = 2.4

Step 3: Determining the variance of x

The variance, denoted as Var(x), is calculated by finding the average of the squared differences between each value of x and the mean:

Var(x) = (Number of trials) × P(red) × P(blue)

          = 6 × 0.4 × 0.6

          = 1.44

Step 4: Finding the standard deviation of x

Finally, the standard deviation, denoted as σx, is the square root of the variance:

σₓ = √Var(x)

    = √1.44

    = 1.2

Therefore, the standard deviation of the number of red balls chosen, x, is 1.2.

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Which 3 terms best describe social media analytics data?
Bureaucratic data, uniform data, historical data
Highly diverse data, controlled by business, private data
Structured data, real-time-data, informal data
Semi-to-unstructured data, boundary-less data, public data

Answers

The Social media analytics data can be described as semi-to-unstructured, boundary-less, and public. It combines structured and unstructured data, transcends geographic boundaries, and consists of publicly available user-generated content.

The three terms that best describe social media analytics data are:

Semi-to-unstructured data: Social media analytics data often includes a mixture of structured and unstructured data. While some information may be organized in a structured format (such as user profiles or timestamps), a significant portion of the data is unstructured, consisting of text, images, videos, and other forms of user-generated content.

Boundary-less data: Social media analytics data is vast and boundary-less, meaning it is not confined to specific geographic locations or traditional boundaries. Social media platforms allow users from all over the world to share information and interact, resulting in a diverse range of data that transcends physical borders.

Public data: Social media analytics primarily deals with publicly available data generated by users on various social media platforms. It includes information shared by individuals or organizations publicly, such as posts, comments, likes, shares, and user profiles. This data is typically accessible to anyone with access to the platform, although privacy settings and user preferences may limit its visibility to some extent.

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sunayana borrowed a sum of rs 12,500 at 12% per annum simple interest for 1 year and 6 months and lent to bishwant at the same rate of compound interest compounded half yearly for the same interval of time. how much profit did she make?​

Answers

Answer:  Rs 137.70

============================================================

Explanation:

6 months = 1/2 year = 0.5 year

1 year, 6 months = 1 yr + 0.5 yr = 1.5 years

Sunayana borrows Rs 12,500 at 12% annual interest for 1.5 years

The amount simple interest she must pay back is

i = p*r*t

i = 12500*0.12*1.5

i = 2,250

The amount of simple interest she must pay back is Rs 2,250 which is on top of the principal Rs 12,500

The total amount she must pay back is p+i = 12,500+2,250 = 14,750

Let x = 14,750 so we can use it later.

--------------

She lends that Rs 12,500 to her friend and this amount is compounded half yearly, aka semiannually. So we'll use n = 2.

The amount Bishwant must pay back to her is

A = p*(1+r/n)^(n*t)

A = 12500*(1+0.12/2)^(2*1.5)

A = 14,887.70

Let y = 14,887.70 so we can use it later.

--------------

Subtract the values of y and x to get the profit she makes

profit = revenue - costs

profit = y - x

profit = 14,887.70 - 14,750

profit = 137.70

The profit is Rs 137.70

Can someone pleaseeee help and if you’re correct I’ll give u brainliest

 Can someone pleaseeee help and if youre correct Ill give u brainliest

Answers

Answer:

The answer is b

Step-by-step explanation:

Dance class has 22 students; 10 are women and 12 are men. if5 men and 5 women are tobe chosen and then paired off, how many results are possible?

Answers

A total of 23, 950, 080 results are possible.

We are given;

10 women

12 men

5 men and 5 women, chosen and pared off, how many results in total?

Thus;

[10 choose 5] x [12 choose 5]=252 x 792 = 199584 ways

We then need to know how many ways there could put into pairs i.e. For the first woman, there will be 5 choices of men. For the second woman, there will be 4 choices remaining of men. For the third woman, there will be 3 choices remaining. For the fourth woman, there will be only 2choices remaining, and only 1 choice left for the last woman.

Therefore, there are 5x4x3x2x1 = 120 ways.

 In total there are 199584x120 = 23950080 total  ways

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Suppose that SIPA students buy only two goods broccoli and coffee beverages. 1. In a graph where you measure broccoli along the horizontal axis and coffee beverages along the vertical axis, draw the indifference curves of a SIPA student who considers broccoli and coffee beverages perfect substitutes. Most students consider broccoli and coffee beverages imperfects substitutes. Their indifference curves are bowed into the origin. Suppose that an economic analyst suggests to model the preferences for broccoli (x) and coffee beverages (y) of the typical female SIPA student using the function UF(x,y) = x2y. 2. What is the marginal utility from broccoli of a female student? What is her marginal utility from coffee beverages? What is her Marginal Rate of Substitution? 3. Does her Marginal Rate of Substitution change as she consumes more broccoli? Are her indifference curves bowed into the origin? Suppose that the student has a budget of $60 and that broccoli costs $1 per unit while coffee beverages cost $2 per unit. 4. In a X/Y diagram, draw the student’s budget set. Clearly label the X-axis intercept and the Yaxis intercept. The write the expression for the student’s budget constraint. 5. By solving the student’s affordability condition and tangency condition, find the student’s optimal bundle of broccoli and coffee beverages. 6. To your diagram, add an indifference curve to illustrate the student’s optimal bundle. Empirical research shows that male students consume less vegetables than female students. 7. Show that if the economic analyst models the preferences of the typical male student using a utility function UM(x,y) = xy2, indeed he would find that the optimal bundle of the typical male student contains less broccoli than the optimal bundle of the typical female student

Answers

The marginal utility from broccoli of a female student is given by the partial derivative of the utility function with respect to broccoli, which is 2xy.

Why will be marginal utility from broccoli of a female student is given by the partial derivative of the utility function with respect to broccoli, which is 2xy?

Yes, her marginal rate of substitution (MRS) changes as she consumes more broccoli. Since the utility function is concave (bowed into the origin), the MRS diminishes as the consumption of broccoli increases.

This implies that the student is willing to give up fewer units of coffee beverages for each additional unit of broccoli as she consumes more of it.

The bowed shape of the indifference curves confirms that the student's preferences exhibit diminishing marginal rate of substitution.

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Think of a business that you might want to start. Think about what foods or services you wouldlike to provide. What qualities do you want people to associate with your company? Explainyour business idea in at least one paragraph. Hey people can you guess NFL player with seven Super Bowl the legnth of a rectangle is three times its width. if the length of the perimeter is 64 in, find the length and width a nozzle with an area of 0.3 cm2 is attached to a garden hose with an area of 1.8 cm2. the flow rate through the nozzle is 0.18 l/s. The total number of hours, measured in units of 100 hours, that a family runs a vacuum cleaner over a period of one year is a continuous random variable X that has the density function f(x) = {x, 0 < x < 1, 2 - x, 1 lessthanorequalto x < 2, 0, elsewhere. Find the probability that over a period of one year, a family runs their vacuum cleaner (a) less than 120 hours: (b) between 50 and 100 hours. Make a powerpoint: explain how it affected Florida's economy. You must include other ways transportation affected Florida. You must mention at least one entrepreneur who was involved with this type of transportation and how they where involved.And explain how a technological advance in transportation affected Florida.i will mark Brainliest just two people have to answer:) True or false? A concave shape curves outwards. find the product of 3x(2x-5x-4) The options are 1. saliva 2. hormones 3. chyme (*please note i will give you 10 pts*) Write T if the statement is true and F ifthe statement is false,a.Most railroads before 1860 were in the East.b. In 1860 tracks were standardized to the main gauge used in the South.Most of the land that the Central Pacific crossed was flat.d. The Union Pacific moved west from Kansas Citye. The Central Pacific and Union Pacific met in Utah Territory. free brainliest! if you answer this easy question c: Question 9 Eight wooden spheres with radii of 3 inches are packed snuggly into a cube-shaped box 12 inches on one side. The remaining space is filled with packing beads. What is the volume occupied by the packing beads Water is shot straight up out of a water soaker toy.The quadratic function y = 16x2 + 32x models theheight in feet of a water droplet after x seconds. Howlong is the water droplet in the air?Help! 7/8 divided by 3/4 simplest form Humans evolved to have less body hair and more sweat glands in their skin to keep cool when out in hot, open grassland habitats. With more skin exposed to the damaging rays of the sun, what solution have humans developed to protect it from the sun?Group of answer choicesHumans have developed cultural adaptations to protect themselves from the sun, such as clothing and shelter.Humans have evolved skin that darkens in response to increased UV radiation in areas where there is seasonal variation.Humans have evolved darker skin in areas where UV radiation is high year round.All of these are true when derrick looked up from his reading to see if the bus was coming, the lenses in his eyes changed shape in order to change from near to far focus. this is called: Can someone please give me answers from the word bank Which of the following is NOT an aspect of culture?Culture is shared.Culture is in-born.Culture is taken for granted.Culture is symbolic. Organizations that follow the production concept most likely practice socially and environmentally responsible marketing. a. true b. false A bag contains 5 red marbles and 5 black marbles. If wetake 3 marbles at random out of the bag, what is the probabilitythat all three marblesare red?