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Liula [17]
4 years ago
5

Given f(x) = 3 and g(x) = 5x + 7, find (f + g)(-8).

Mathematics
1 answer:
levacccp [35]4 years ago
4 0

Answer:

-30

Step-by-step explanation:

f(x) = 3 so f(-8) = 3;

g(x) = 5x + 7, so g(-8) = 5(-8) + 7 = -33

Then (f + g)(-8) = 3 - 33 = -30

This is the sum of two functions both evaluated at x = -8.

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Solve for x:<br> 2x - 14 = 3x + 6
Dima020 [189]

Answer:

<h2>x = - 20</h2>

Step-by-step explanation:

2x - 14 = 3x  + 6

<u>Move 3x to the other side of the equation</u>

2x - 3x - 14 = 6 \\  - x - 14 = 6

<u>Move -14 to the right side of the equation.</u>

- x = 14 + 6 \\  - x = 20

Multiply both sides by - 1

- ( - x) =  - 20 \\ x = -  20

We have the final answer as

<h3>x = - 20</h3>

Hope this helps you

5 0
3 years ago
Read 2 more answers
Jon makes $76 in 12 hours of work for his mom. How much would Jon make in 20 hours of work.
Lyrx [107]

Answer:

around 126

Step-by-step explanation:

4 0
3 years ago
The entrance rate into a prestigious university's graduate program is 13%. A statistics student wants to know if the entrance ra
kifflom [539]

Answer:

The requirements for the hypothesis test are not met

Step-by-step explanation:

We have the following information from the statement:

sample size = n = 60

Probability = p = 13% = 0.13

Now, we calculate the multiplication of this which would be:

n * p = 60 * (0.13) = 7.8 which is less than 10

Therefore the requirements for the hypothesis test are not met, since the multiplication of n by p would have to be greater than 10 for it to be met, but this is not the case.

7 0
4 years ago
Today, you earn a salary of $28,000. what will be your annual salary twelve years from now if you earn annual raises of 2.6 perc
Debora [2.8K]
Salary after 12 years = $28,000(1+0.026)^12 =$38100.12
8 0
3 years ago
Question 23
Molodets [167]

Answer:

g(x)=10x-30 when x is 1

g(x)=-20. hence dats is d first function

g(x)=-20x+5

g(x)=-15 hence dats d second function

8 0
3 years ago
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