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Umnica [9.8K]
2 years ago
15

Stephanie receives a salary of $650 per month plus a commission of 5.5% on the first $3,000 of sales and 7% of all sales over $3

,000 find Stephanie's gross pay for the month if her sales were $11,230
Mathematics
1 answer:
charle [14.2K]2 years ago
5 0

Answer:

1391.1$

Step-by-step explanation:

1. Count the earned commission for first 3000$ -> 3000*0.055=165$.

2. Count the earned commission for the remained money -> (11230-3000)*0.07=576.1$.

3. Sum up all Stephanie's incomes -> 650+165+576.1=1391.1$.

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5 0
3 years ago
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2 years ago
Let g(x) = 2x and h(x)= x^2 -4. find (g o h)(0)
finlep [7]
The answer is -8

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

Explanation:

There are two ways to get this answer

Method 1 will have us plug x = 0 into h(x) to get
h(x) = x^2 - 4
h(0) = 0^2 - 4
h(0) = 0 - 4
h(0) = -4
Then this output is plugged into g(x) to get
g(x) = 2x
g(-4) = 2*(-4)
g(-4) = -8 which is the answer
This works because (g o h)(0) is the same as g(h(0)). Note how h(0) is replaced with -4
So effectively g(h(0)) = -8 which is the same as (g o h)(0) = -8

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

The second method involves a bit algebra first
Start with the outer function g(x). Then replace every x with h(x). On the right side, we will replace h(x) with x^2-4 because h(x) = x^2-4

g(x) = 2x
g(x) = 2( x )
g(h(x)) = 2( h(x) ) ... replace every x with h(x)
g(h(x)) = 2( x^2-4 ) ... replace h(x) on the right side with x^2-4
g(h(x)) = 2x^2-8
(g o h)(x) = 2x^2-8

Now plug in x = 0
(g o h)(x) = 2x^2-8
(g o h)(0) = 2(0)^2-8
(g o h)(0) = 2(0)-8
(g o h)(0) = 0-8
(g o h)(0) = -8

Regardless of which method you use, the answer is -8

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Step-by-step explanation:

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