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laila [671]
2 years ago
6

If f(x)=3x+2 and g(x) =x^2 +1 which expression is equivalent to (f•g)(x)

Mathematics
1 answer:
BigorU [14]2 years ago
5 0
(f · g)(x) = f(x) · g(x)

f(x) = 3x + 2; g(x) = x^2 + 1

(f · g)(x) = (3x + 2)(x^2 + 1) = 3x^3 + 3x + 2x^2 + 2 = 3x^3 + 2x^2 + 3x + 2
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An angle measures 6° less than the measure of a complementary angle. what is the measure of each angle?
Sauron [17]
A and 90-a is the measure of the two angles

a=90-a-6
2a=84
a=42
42° and 48°
3 0
3 years ago
A family pays $45 each month for cable television. the cost increases 7%.a. how many dollars is the increase?the increase is $.b
yKpoI14uk [10]
It increased by $3.15
The new monthly cost is $48.15
3 0
2 years ago
The original quantity is 20 and the new quantity is 15. Adam incorrectly says the percent decrease is about ​14.29%. What is the
Yuki888 [10]

Answer: A. divided the difference of the two quantities by the sum of the two quantities.

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

Explanation:

The difference of the quantities is 20-15 = 5

The sum of the quantities is 20+15 = 35

Dividing those results leads to 5/35 = 0.142857 which rounds to 0.1429

That converts to 14.29%

This is likely the path Adam took. This path is incorrect. The correct steps are shown below

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

Difference = 20-15 = 5

Divide the difference over the original quantity

5/20 = 1/4 = 0.25 = 25%

We have a 25% decrease because the new quantity (15) is smaller than the old quantity (20)

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

Here's another way to approach the problem

A = old value = 20

B = new value = 15

C = percent change

C = [ (B-A)/A ] * 100%

C = [ (15-20)/20 ] * 100%

C = (-5/20)*100%

C = -0.25*100%

C = -25%

The negative C value means we have a negative percent change, ie we have a percent decrease. So this is another way to get a 25% decrease.

4 0
2 years ago
Read 2 more answers
Use the quadratic formula to solve the equation x2+7x​
monitta

The solution of the equation x2+7x​ is 0, -7 using the quadratic formula.

Step-by-step explanation:

x2 + 7x = 0

-b  ± √ b2 - 4(ac)/ 2a

substitution,

a = 1, b = 7, c = 0

= -7  ± √(7)2 - 4(1 x 0) / 2 x 1

= - 7   ± 7 / 2

x = 0 , -7

4 0
3 years ago
134.42 By 28 estimate the quotient
Vlad [161]
The answer to 134.42 by 28 is estimated to 4.8
8 0
3 years ago
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