Find the percentage of the following:

1.25% of 60
2.75% of 20
3.20% of 10
4.50% of 100
5.5% of 30​

The angle is 45 degrees between the trajectories the ball takes before and after hitting the rail.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

We have LHS = RHS (left hand side = right hand side) in every mathematical equation.

We have LHS = RHS (left hand side = right hand side) in every mathematical equation.  To determine the value

To determine the value A statement is not an equation if it has no "equal to" sign.

A mathematical statement that has a "equal to" symbol between two expressions with equal values is called an equation.

Hence, The angle is 45 degrees between the trajectories the ball takes before and after hitting the rail.

learn more about equations click here:

brainly.com/question/2972832

#SPJ4

Answer:

both Elias and Greyson

Step-by-step explanation:

The vertex of the parabola y = f(x + 1) is (1, -1).

To find the vertex of the parabola given by the equation y = f(x + 1), we need to determine the effect of the transformation on the vertex coordinates.

The vertex form of a parabola is given by y = a(x - h)^2 + k, where (h, k) represents the vertex coordinates.

In the given equation, y = f(x + 1), we can see that the transformation is a horizontal shift of 1 unit to the left. This means that the new vertex will be located 1 unit to the left of the original vertex.

Given that the original vertex is (2, -1), shifting 1 unit to the left would result in a new x-coordinate of 2 - 1 = 1. The y-coordinate remains the same.

Therefore, the vertex of the parabola y = f(x + 1) is (1, -1).

Learn more about parabola

brainly.com/question/11911877

# SPJ11

Answer: C. Is true 7/8>-0.78

Answer:

\(y = \frac{-3}{4}x + 36\)

Step-by-step explanation:

Data provided in the question

Height = 36 inches

Stant of the stairs followed that declines 9 inches for every 12 horizontal inches

Height = x

x =  from top of the stairs

based on the above information

Therefore the change in rate is

\(\frac{-9}{12} = \frac{-3}{4}\)

It depicts the line sloping.

Now the function would be determined by the line equation which is as follows

y = mx+c

\(m = \frac{-3}{4}\)

where,

c = 36 inches

So, the function is

\(y = \frac{-3}{4}x + 36\)

Answer:

Answer is A

Step-by-step explanation:

Ratio of pencil to all item on Garry's desk is 1 : 4.

We can say that a ratio is a comparison made by dividing two quantities of the same kind. We may determine how many times one quantity is equal to another using this relationship. The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects. An expression used to compare two comparable amounts is referred to as a ratio. If a and b are two distinct numbers or integers, then a/b or a:b can be used to denote their ratio.

Given

4 pencil 12 colored pencil 1 bell ringer 1 math notebook

Sum of all items on desk

= 4 + 12 + 1 + 1

= 16

Ratio of pencil to all item on Garry's desk

4 : 16

1 : 4

Ratio of pencil to all item on Garry's desk is 1 : 4.

To learn more about ratio, visit:

https://brainly.com/question/13419413

#SPJ4

the kangaroo real height is 3 feet and shadow height is 5 feet

if the height of the tree is 7 feet so the real height of the tree is 5 feet

Answer:

(11/2)² or 121/4 would be added to the equation x ² +11x+30=0,  to "complete the square".

Step-by-step explanation:

x 2 +11x+30=0

Write the equation in the form of the square

(x)^2 + 2(x) (11/2)  + (11/2)^2  + 30 - 121/4= 0

Square of the first element + 2 into first element into 2nd element + square of 2nd element gives the complete square formula.

How we obtained the second element?

The mid term broken must always be equal to the mid term given.

Hence

2(x)    can only be equal to 11x if we multiply it by 11 and divide it with 2.

So the second term must be 11/2 .

To complete the square this second term ( 11/2)² is added and then subtracted to keep the equation equal to the original equation.

(x)^2 + 2(x) (11/2)  + (11/2)^2  + 30 - 121/4= 0

Putting it in the form of square

(x+ 11/2)^2  + 120-121/4= 0

Taking LCM and solving

(x+ 11/2)^2   - 1/4= 0

(x+ 11/2)^2  = 1/4

Taking square root on both sides

(x+ 11/2)   = ± 1/2

x= - 11/2  ± 1/2

x= -10/2= -5

x= -12/2= -6

Answer:

Check the attached screenshot! :)

Step-by-step explanation:

Check the attached screenshot! Let me know if you have any questions! :)

Answer:

1 - 3 -2 -4

Step-by-step explanation:

expand them all

.000000092

.058

.0544

2400            so you can see the least to greatest is   1 3 2 4

Answer:

Step-by-step explanation:

SOLVING

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

6=-2(7-c)

Use distribution to multiply -2 by parenthesis

6=-14+2c

Add to both sides 14

20=2c

Divide 2 into both sides

10=c

5(h-4)=8

Use distribution to multiply 5 by the parenthesis

5h-20=8

Add to both sides 20

5h=28

Divide 5 into both sides

\(h=\frac{28}{5}\)

Learn more;work harder

#Carryonlearning

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

You can determine the product of a monomial and a polynomial by using the distributive property (c) to expand.

The distributive property is a property in algebra that can be used to simplify expressions involving multiplication and addition.

In this situation, the distributive property is used to expand the multiplication of a monomial and a polynomial. The distributive property states that multiplying a single term by a sum or difference is the same as multiplying the term by each term in the sum or difference and then combining the results.

A monomial is an algebraic expression consisting of a single term, which is a combination of numbers, variables, and exponents, that is multiplied together. For example, 5x, 3y², and -4xy are all examples of monomials.

A polynomial is an algebraic expression that consists of two or more terms that are added together. It can contain variables, constants, and exponents, and can be of any degree. For example, 2x² + 3x - 5, 4x³ - 2x² + x, and -5x + 7 are all examples of polynomials.

Hence, the correct answer is Option C.

Learn more about distributive property here: https://brainly.com/question/28490348

#SPJ11

25 minutes long

Hope this helps!

Ok so we know that the movie starts at 7:15 PM. The duration of the movie is 1.5 hours long. She begins eating her snack after the movie which, sense 7:15 plus 1.5 hours is 8:45, is 8:45. She finishes her snack at 9:10. What is the difference between 9:10 and 8:45?

For me, the easiest thing to do we would be to add a half hour (30 minutes) to the 8:45. This gets 9:15. Since 9:15 is past 9:10, I subtract the difference to get 5 minutes. I then take the 30 minutes I added to the 8:45 and subtract the 5 minutes that it went over to get 25 minutes. This is the easiest way to get the answer in my opinion. Sorry if this could not be of help to you!

Diagram to better understand maybe? (I did the best I could with this lol)

                                              x (the 25 minutes you found once you solved it)

                                                                                      ^

7:15 PM ----------------------------- 1.5 hours later----------------------------------- 9:10 PM

^                                                          ^                                                            ^

Time the movie started          Movie length             When she finished eating

The angle between the stick and the base of the box is 77. 9 degrees

To determine the angle between the stick and the base, we have to know the trigonometric identities.

These identities are;

From the information given, we have;

sin A = FB/AB

Given that;

GB = 14.5cm

AB = 18. 6cm

substitute for the length of the sides, we have;

sin A = 14.5/18. 6

Divide the values, we have;

sin A = 0. 7796

Find the inverse sine

A = 77. 9 degrees

Learn more about trigonometric identities at: https://brainly.com/question/7331447

#SPJ1

(i) When testing whether girls who attended girls-only high schools do better in math, it is important to control for various factors that could potentially influence math scores.

Some factors to consider are:

(ii) The equation relating the math score (score) to girlhs (dummy variable indicating girls-only high school attendance) and other factors can be written as:

score = β0 + β1 * girlhs + β2 * socioeconomic status + β3 * prior academic performance + β4 * school quality + β5 * peer effects + β6 * teacher quality + β7 * access to resources + ε

This equation represents the structural relationship between the math score and the factors being controlled for. The coefficients β1, β2, β3, β4, β5, β6, and β7 represent the respective effects of girlhs and the other factors on the math score.

(iii) Parental support and motivation, which are unmeasured factors, may be correlated with girlhs. This is because parents who choose to send their daughters to girls-only high schools might have certain preferences or beliefs regarding education, which could include providing higher levels of support and motivation. However, without directly measuring parental support and motivation, it is difficult to establish a definitive correlation.

(iv) To ensure that numghs (the number of girls-only high schools within a 20-mile radius of a girl's home) is a valid instrumental variable (IV) for girlhs, certain assumptions are needed:

(v) If the coefficient estimate on the chosen IV numghs is negative and statistically significant in the reduced form estimation, it suggests a strong relationship between the instrumental variable and the attendance at girls-only high schools. This provides some confidence in the validity of the IV. However, the decision to proceed with IV estimation should also consider other factors such as the strength of the instruments, the overall model fit, and the robustness of the results to alternative specifications.

It is important to carefully evaluate the assumptions and limitations of the IV estimation approach before drawing conclusions in math.

To know more about math and mathematical questions, visit

https://brainly.com/question/33359365

#SPJ11

Answer:

5(x-2)-(X+3)=x-8

5x-10-x-3=x-8

4x-13=x-8

4x-x=(-8)+13

3x=5

X=5/3

hope you like the answer

please mark the answer as brainliest

Answer:

-5

Step-by-step explanation:

Answer:

it's a translation

Step-by-step explanation:

it just moved (3,0). If it were a rotation the y-axis wouldn't be the same. If it were a reflection you would be able to flip the blue triangle onto the red triangle.

Step-by-step explanation:

11% = 0.11

the remaining part when subtracting 11% from the whole (100%) is 89%.

89% = 0.89

his after-tax wages are 89% of his total income.

w(h) = 15h × 0.89 = 13.35h

Answer:

25,709.4

Step-by-step explanation:

First you would multiply 3.5 x 24,000, and then divide by 100, to get 840, and then add that to the original  amount to get 24,840, and that is the cost for one year. And then you would multiply 24,840 by 3.5 and then divide by 100 to get 869.4. Finally just add that to 24,840 to get 25,709.4, and that is the cost for 2 years. I hope this helps :)

The cost of college in two years is $25709.4.

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Cost of Faber college  = $24000

Rate of increase = 3.5%

The cost of college after one year.

= 103.5% of 24,000

= 103.5/100 x 24000

= $24,840

The cost of their college after two years.

= 103.5% of 24,000

= 103.5/100 x 24,840

= $25709.4

Thus,

The cost of college in two years is $25709.4.

Learn more about percentages here:

https://brainly.com/question/11403063

#SPJ5

Answer:

A

Step-by-step explanation:

d(t)=3t+1 but d(t)=7

distance*time=3*time+1

so d(t)=7 is the same as

d(t)=3(2)+1

meaning that you hiked for 2 hours.

Answer:

Ariel is incorrect. Her account balance will decrease as follows for the first 10 withdraws.

Step-by-step explanation:

38.74-0.1(38.74)=38.74-3.87=34.87

Answer:

10 1/2

Step-by-step explanation:

The rightmost column is not a pivot column. In the echelon form of the augmented matrix, is there a row of the form [0 0 0 0 ] with b nonzero is not. The system is not consistent according to the Existence and Uniqueness Theorem.

To determine if the linear system is consistent or not based on the given information, let's go through the steps:

1: Look at the augmented matrix

You have a 3x5 augmented matrix, which can be represented as [A|B], where A is a 3x3 coefficient matrix and B is a 3x1 column vector.

2: Identify the pivot columns

The pivot columns are the columns in the coefficient matrix A that contain the leading entries in its echelon form. These leading entries are the first nonzero entries in each row.

Since the augmented matrix has 3 rows and 5 columns, and the fifth column is not a pivot column, it means that the fifth column does not contain a leading entry in the echelon form of the coefficient matrix A.

Therefore, in the augmented matrix described above, not is the nightmost column a pivot column.

3: Determine if the system is consistent

According to the Existence and Uniqueness Theorem, a linear system is consistent if and only if the rightmost column of the augmented matrix is a pivot column.

In this case, since the rightmost column (the fifth column) is not a pivot column, the linear system is not consistent.

Therefore, the answer to whether the system is consistent is No.

Read more on a linear equations here:

brainly.com/question/4546414

#SPJ4

Answer:

15/7

Step-by-step explanation:

5 1/7 = 36/7

2 2/5 = 12/5

36/7 divided by 12/5 = (Keep, Change, Flip) 36/7 * 5/12

180/84 reduces to 15/7

Hope this helped!

Also can I please have Brainliest??

The cost of 2 pounds of cashews will be;

⇒ $9.98

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

At the grocery store,

Henry bought c pounds of cashews for $4.99 per pound.

Now,

Since, Henry bought c pounds of cashews for $4.99 per pound.

Hence, The cost of 1 pound of cashews = $4.99

So, The cost of 2 pounds of cashews = 2 × $4.99

                                                          = $9.98

Learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ5

Answer:

d

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

Given

4(x - 2) = 12 ( divide both sides by 4 )

x - 2 = 3 ( add 2 to both sides )

x = 5

Answer:

If Ron works 8 hours a day and get's paid $15 an hour

for 5 days a week and works for 12 weeks

1 hour = $15

8 hours = $120

So Ron get's paid $120 a day

So if he works 5 days a week then

120 x 5 = $600

Ron get's paid $600 a week

So if Ron works for 12 weeks then

600 x 12 = $7,200

Ron's gross pay is $7,200

Step-by-step explanation:

Answer:

x = 9

Step-by-step explanation:

1/4(8x+12) =21

1/4 * 8x = 2x

1/4 * 12 = 3

2x + 3 = 21

21 - 3 = 18

2x = 18

18/2 = 9

x = 9

Answer:

x=9

Step-by-step explanation:

2x+3=21

2x=18

x=9