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Paul [167]
3 years ago
8

I don’t know how to do this problem in math

Mathematics
1 answer:
Elodia [21]3 years ago
5 0

Answer:

142

Step-by-step explanation:

Basically, in f (x) whatever x is will go in the parenthesis.

So,

-(-9)^{2}-7(-9)-2

The two negatives that are next together will turn positive.

9^{2}+63-2

When multiplying two negative numbers turn positive.

9 x 9= 81

81+63-2

144-2=142

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4 0
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andrew11 [14]

Answer:

a. the order processing fee changed to $ 15 and each bottle charge changed to 115%

b. the equation of cost will be changed to : (1.2 x 1.15) b + 15 = 1.38b + 15

Step-by-step explanation:

a. the order processing fee changed to $ 15 and each bottle charge changed to 115%

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3 years ago
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Step-by-step explanation:


5 0
3 years ago
Find two numbers whose sum is 29 and whose difference is 15
gizmo_the_mogwai [7]
The two numbers are 22 and 7.
22 + 7 = 29
22 - 7 = 15
here is how we can find these numbers;
let a and b are two numbers
a + b = 29
a - b = 15
a   = 15 + b
now put this value of a in any of the equation
a + b = 29
15 + b  + b = 29
15 + 2b = 29
2b = 29 - 15
2b = 14
b = 7
now put the value of b to find the value of a;
a = 15 + b = 15 + 7 = 22
a = 22
4 0
3 years ago
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