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olchik [2.2K]
3 years ago
12

(A) Write an expression that represents Sarah’s total pay last week. Represent her hourly wage with (w)?

Mathematics
1 answer:
garri49 [273]3 years ago
7 0

Answer:

Step-by-step explanation:

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Given h(x) = -3x - 2 solve for x when h(x) = 1
solmaris [256]

Answer:

-5

Step-by-step explanation:

h(x) = -3x - 2

h(x) = 1

[ just put '1' in place of every 'x' ]

-3(1) -2
= -3 -2
= -5 (answer)

5 0
2 years ago
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The sum of the areas of the two circles is 80 pi square meters. Find the length of a radius of each circle of one of them is twi
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The radius of both circles are 4m and 8m.
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3 years ago
For what value of n is In - 11 + 1 equal to 1?
Leviafan [203]
It would be 11 if I’m reading this right
8 0
2 years ago
Help please!!<br>Solve the equation -5m = -20.<br> m = 1/4<br> m = -1/4<br> m = -4<br> m = 4
koban [17]

Answer:

m=4

Step-by-step explanation:

-5m=-20

m= - 20/-5

m=4

4 0
3 years ago
The one-to-one functions g and h are defined as follows
Debora [2.8K]

Answer:

g^-^1(x)=-8

h^-^1(x)=\frac{x-4}{3}

(h^-^1 \ o\ h)(-3)=-3

Step-by-step explanation:

When given the following functions,

g=[(-2,-7),(4,6),(6,-8),(7,4)]

h(x)=3x+4

One is asked to find the following,

1. Question 1

g^-^1(4)

When finding the inverse of a function that is composed of defined points, one substitutes the input given into the function, then finds the output. After doing so, one must substitute the output into the function, and find its output. Thus, finding the inverse of the given input;

g^-^1(4)

g(4)=6\\g(6)=-8\\g^-^1(4)=-8

2. Question 2

h^-^1(x)

Finding the inverse of a continuous function is essentially finding the opposite of the function. An easy trick to do so is to treat the evaluator (h(x)) like another variable. Solve the equation for (x) in terms of (h(x)). Then rewrite the equation in inverse function notation,

h(x)=3x+4\\\\h(x)-4=3x\\\\\frac{h(x)-4}{3}=x\\\\\frac{x-4}{3}=h^-^1(x)

h^-^1(x)=\frac{x-4}{3}

3. Question 3

(h^-^1 \ o\ h)(-3)

This question essentially asks one to find the composition of the function. In essence, substitute function (h) into function (h^-^1) and simplify. Then substitute (-3) into the result.

h^-^1\ o\ h

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

Now substitute (-3) in place of (x),

=-3

8 0
3 years ago
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