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Sedaia [141]
2 years ago
10

Erika calculated that she would spend $115 on school supplies this year. She actually spent $82.50 on school supplies. What is E

rika’s percent of error?
a.28.3%
b. 2.8%
c. 39.4%
d. 32.5%
Mathematics
2 answers:
Anna71 [15]2 years ago
6 0

Answer:

2.8%

Step-by-step explanation:

1.4x2=2.8

Elza [17]2 years ago
3 0

Answer:

39.4%

Step-by-step explanation:

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Inverse Functions (please help)
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Answer:

The procedure for this case is add three, then divide by 5.

Step-by-step explanation:

if y=5x-3

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or

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Masteriza [31]

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3 years ago
The function h(x) = 12x8 + 49 is an even function. Which transformation of h(x) would result in a function that is neither even
Irina-Kira [14]

Answer:  translation 8 units to the right

Step-by-step explanation:

An even function is a function such that:

h(x) = h(-x)

and the function is odd if:

h(-x) = -h(x)

Now, let's talk about transformations:

A) Reflection over the x-axis:

When we have a point (x,y) and we do a reflection over the x-axis, the reflected point will be:

(x, -y).

Then for the case of a function:

y = h(x).

then the reflection will be:

g(x) = - y = -h(x).

And if h(x) is even, -h(x) is also even, so this is not the correct option.

B) Vertical stretch by a factor of 7.

This is written as:

g(x) = 7*h(x).

then:

g(x) = 7*h(x)

g(-x) = 7*h(-x) = 7*h(x) = g(x)

the transformation is even.

C) Translation of 8 units to the right.

We can write this as:

g(x) = h(x - 8).

Then:

g(-x) = h(-x -8) = h(x + 8)

Then g(-x) is not equal to g(x)

and also g(-x) ≠ -g(x)

So in this case the transformation is neither odd or even.

C)  horizontal compression by a factor of One-half.

This transformation is written as:

g(x) = h( (1/2)*x)

And, similar as the case of the vertical compression, in this case the transformation is also even.

3 0
3 years ago
Rico spent $87.00 to go to the movies on Friday night. He spent $25.75 on popcorn and drinks and paid $12.25 for each movie tick
Svetlanka [38]
You haven't given the equations I'm supposed to chose from, but the answer would be 

25.72 + 12.25x = 87.00 is the equation.

He spent a total of $87

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5 is the solution
7 0
3 years ago
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