STUCK ON THIS PROBLEM FOR 2 HRS, PLEASE HELP:

Answer:2

Step-by-step explanation:

car, and arc, however ar is also a word, not distinctly though.

Answer:

\(209.43 \: \: {units}^{3} \)

Step-by-step explanation:

\(v = \pi {r}^{2} \frac{h}{3} \\ = \pi \times {5}^{2} \times \frac{8}{3} \\ = 209.439\)

Answer:

\(y = 3x - 5 \\ x = - y \\ substitute \: - y \: in \: the \: place \: of \: x \\ y = - 3y - 5 \\ y + 3y = 5 \\ 4y = 5 \\ y = \frac{5}{4} \)

Answer: (5/8)x

Step-by-step explanation:

Answer:

705.81 and 705.810

Step-by-step explanation:

700 + 5 + 0.8 + 0.01 = 705.81

Answers:

705.810

705.81

Answer:

B

Step-by-step explanation:

given scale is 1 inch represents 7.5 feet

then we require to calculate how many 7.5 feet there are in each dimension.

to obtain this divide each dimension by 7.5, that is

13 ÷ 7.5 ≈ 1.73 ( to 2 decimal places )

26 ÷ 7.5 ≈ 3.47 ( to 2 decimal places )

then dimensions are approximately 1.73 inches by 3.47 inches

The system A has no solution.

The system B has the solution y=( 3-x )/3

What is the solution to an equation?

In order to make the equation's equality true, the unknown variables must be given values as a solution. In other words, the definition of a solution is a value or set of values (one for each unknown) that, when used as a replacement for the unknowns, transforms the equation into equality.

System A:

x+3y=9..........(1)

-x-3y=9 ..........(2)

(1) => x=9-3y........(3)

Substitute (3) into (2)

(2) = >  - ( 9-3y ) - 3y = 9

          -9 + 3y - 3y = 9

          -9 =9

This is false.

So, the system has no solution.

System B:

-x-3y=-3..........(1)

x+3y=3..........(2)

(2) => x=3-3y........(3)

Substitute (3) into (1)

-(3-3y)-3y=-3

-3+3y-3y= -3

-3=-3

This is true,

So, the solution is:

x=3-3y

=> 3y= 3-x

=> y=( 3-x )/3

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Answer:

The answer is 100. One way to find it out is 1600/16, and then you get 100.

Answer:

3

Step-by-step explanation:

9÷3 , 12÷3 , 15÷3

= 3

done

Answer:

drop the 0 then add the 0 o. the top or I think

The circumference of the circle which has a diameter of 32 inches is 100.5 inches to the nearest tenth.

Given that,

Diameter of a circle = 32 inches

Radius = Half of the diameter

           = 32/2

           = 16 inches

The formula to find the circumference of the circle is,

Circumference = 2πr, where r is the radius of the circle.

Circumference = 2π × 16 = 32π inches

                                         = 100.48 inches ≈ 100.5 inches

Hence the circumference of the circle is 100.48 inches.

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Answer:

Step-by-step explanation:

1. Get mileage per gallon by dividing miles traveled by gallons used

\(\frac{125}{5} = 25 mpg\\\)

2. Divide miles you want to travel by the mileage per gallon you got on the first step

\(\frac{400}{25} = 16 gallons\)

We can be 90% confident that the true proportion of all students who saw a film at the movie theater in the last 30 days is between 0.277 and 0.473.

What is proportion?

Proportion is a mathematical term that represents a relationship between two quantities or numbers. It refers to the comparison of one part of a whole to the whole itself.

To find a confidence interval for the proportion p of all students who saw a film at the movie theater, we can use the formula:

CI = p ± z * √(p(1-p)/n)

where p is the sample proportion, n is the sample size, z is the z-score corresponding to the desired level of confidence (90% in this case), and √(p(1-p)/n) is the standard error of the proportion.

First, we need to find the sample proportion p:

p = 37.5% = 0.375

Next, we need to find the z-score corresponding to a 90% confidence level. We can use a z-table or a calculator to find this value. The z-score for a 90% confidence level is 1.645.

Now we can plug in the values into the formula:

CI = 0.375 ± 1.645*√(0.375(1-0.375)/64)

Simplifying:

CI = 0.375 ± 0.098

Therefore, the 90% confidence interval for the proportion of all students who saw a film at the movie theater in the last 30 days is:

CI = (0.277, 0.473)

Hence, we can be 90% confident that the true proportion of all students who saw a film at the movie theater in the last 30 days is between 0.277 and 0.473.

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The length of segment XY in this problem is given as follows:

XY = 5 cm.

The three trigonometric ratios are defined as follows:

In this problem, we have that segment XY is adjacent to an angle of 45º, with the opposite side has a length of 5 cm, hence the tangent of the angle can be used, as follows:

tan(45º) = 5/XY

It is known that the tangent of 45 degrees is of 1, hence the length of the segment XY is calculated as follows:

1 = 5/XY

XY = 5 cm.

Meaning that the third option is the correct option.

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Answer:

5 cm

Step-by-step explanation:

Explanation:

This problem is a simple percent chage problem. The absoluge change in price was $12−$8=$4. Relative to the original price, it was 412, which is 0.3333 or 33.33%.

The rate of acceleration of an object with a mass of 3 kilograms that is pulled by the same force is given as follows:

18 m/s².

According to Newton's Second Law, the force is given by the multiplication of the mass and of the acceleration, as follows:

F = ma.

The force is obtained as follows, considering a mass of 27 kg and an acceleration of 2 m/s².

F = 27 x 2

F = 54N.

Then the acceleration of an object of 3 kilograms with the same force is given as follows:

3a = 54

a = 54/3

a = 18 m/s².

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There is only 1 possible 11-card hand that can be formed from a 20-card deck.

To determine the number of 11-card hands possible with a 20-card deck, we can use the concept of combinations.

The number of combinations, denoted as "nCk," represents the number of ways to choose k items from a set of n items without regard to the order. In this case, we want to find the number of 11-card hands from a 20-card deck.

The formula for combinations is:

nCk = n! / (k!(n-k)!)

Where "!" denotes the factorial of a number.

Substituting the values into the formula:

20C11 = 20! / (11!(20-11)!)

Simplifying further:

20C11 = 20! / (11! * 9!)

Now, let's calculate the factorial values:

20! = 20 * 19 * 18 * ... * 2 * 1

11! = 11 * 10 * 9 * ... * 2 * 1

9! = 9 * 8 * 7 * ... * 2 * 1

By canceling out common terms in the numerator and denominator, we get:

20C11 = (20 * 19 * 18 * ... * 12) / (11 * 10 * 9 * ... * 2 * 1)

Performing the multiplication:

20C11 = 39,916,800 / 39,916,800

Finally, the result simplifies to:

20C11 = 1

Consequently, with a 20-card deck, there is only one potential 11-card hand.

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Step-by-step explanation:

Area of the circle=

\( \frac{\pi {d}^{2} }{4} \)

3.14•(17)²/4

=226.865in²

Area of the rectangle=length•width

=(8•15)in²

=120in²

Area of the shaded portion=Area of the circle-Area of a rectangle

=(226.865-120)in²

=106.865in²

=106.87in² to the nearest hundredth

Answer:

We know that Jennifer ran 10k last weekend.

Now, we have the function:

t = f(k) = 7*k

(notice that this is a linear function)

First, let's define what is the range.

The range is the possible values that the outcome, t, can take.

To see the range, we first must see the domain (the possible values of of the input)

In this case, we know that the minimum value of k is 0 (the time to run 0 kilometers)

t(0) = 7*0 = 0

Here we found the minimum of the range.

Now, the maximum value in the domain is 10 (because she ran 10km, we can not have a value of k larger than 10)

The time is:

t(10) = 7*10 = 70

This will be the maximum of the range.

Then the range can be written as:

R = [0, 70]

Answer:

Step-by-step explanation:

(a) The Law of Sines can be used to find BD.

  BD/sin(48°) = BD/sin(50°)

  BD = (6 cm)(sin(48°)/sin(60°)) ≈ 5.82064 cm

__

(b) We can use the Law of Cosines to find AD.

  AD^2 = AB^2 +BD^2 -2·AB·BD·cos(98°) . . . . . angle ABD = 48°+50°

  AD^2 ≈ 110.841

  AD ≈ √110.841 ≈ 10.5281 . . . cm

__

(c) The area of ∆ABD can be found using the formula ...

  A = ab·sin(θ)/2 . . . . . where a=AB, b=BD, θ = 98°

  A = (8 cm)(5.82064 cm)sin(98°)/2 ≈ 23.0560 cm^2

_____

Angle ABD is the external angle of ∆BCD that is the sum of the remote interior angles BCD and BDC. Hence ∠ABD = 48° +50° = 98°.

Answer:

blue and red

Step-by-step explanation:

hope it helped

Step-by-step explanation:

To compare the two amounts of fabric, we need to express them with a common denominator:

15/2 = 30/4

7 1/2 = 15/2

Now we can compare the two amounts:

30/4 > 15/2

This is true because 30/4 is equal to 7.5 yards, which is greater than 7.5 yards (or 15/2 yards) of silver fabric.

Therefore, Ms. Thompson needs more red fabric than silver fabric.

Answer:

hola

Step-by-step explanation:

es buena la app.verdad gracias

According to the information, the missing number from the box is number 40.

To find the missing number of the table we must take into account different elements. In particular we must look at the totals and the columns and rows in which the empty space is. Once we identify the totals we can subtract the other values from the total and find the missing number in the table.

According to the above we can infer that the missing number is 40.

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Answer:

x = -1,375

y = -5

Step-by-step explanation:

{-8x + y = 6, / : (-1)

{-8x + 3y = -14;

Multiply the first equation by -1, so that we could eliminate 8x:

+ {8x - y = -6,

{-8x + 3y = -14;

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

4y = - 20 / : 4

y = -5

Now, make x the subject from the first equation (you can do it from the 2nd one instead):

8x = -6 + y / : 8

x = -0,75 + 0,125y

x = -0,75 + 0,125 × (-5) = -0,75 - 0,625 = -1,375

Answer:

Keith can plant 10 bushes in 2 hours

Step-by-step explanation:

40 divided by 8 is 5 and 5 times 2 is 10.