I need it asap answer

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Answer 1

Answer:

Answer:

D. As the number of students in a class increases, the average rating score of the class decreases.

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1. Given f(x) = 3x – 4 and g(x)=–2x+7 evaluate:
(fog)(5)

Answers

Answer:

(f o g)(5) = -13

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Algebra I

Composition of functions

Step-by-step explanation:

Step 1: Define

f(x) = 3x - 4

g(x) = -2x + 7

(f o g)(5) is f(g(5))

Step 2: Find composite function

Substitute: (f o g)(x) = 3(-2x + 7) - 4
Distribute: (f o g)(x) = -6x + 21 - 4
Combine like terms: (f o g)(x) = -6x + 17

Step 3: Solve

Substitute: (f o g)(5) = -6(5) + 17
Multiply: (f o g)(5) = -30 + 17
Add: (f o g)(5) = -13

Audrey is buying a new car for 32,998.00. She plans to make a down payment of 4,200.00. If she's to make monthly payments of $525 for the next five years, what APR has she paid

Answers

The price of the new car is 32 998.00 dollars
=> he made a down payment of 4,200.00 dollars
=> 32 998.00 - 4,200.00 = 28 798 dollars remaining
=> She pays 525 dollars for the next 5 years
=> 525 * 12 months = 6300 dollars * 5 years = 31 500 dollars
=> 31 500 dollars - 28 798 = 2702
=> 2702 / 5 years = 540.4 dollars is the APR.

What is 4x+3y=14 2y=6+4x

Answers

4x+3y=14
2y=6+4x
we can isolate the y in the second function
2y=6+4x
/2 /2
y=3+2x
then change all the y to 3+2x in first function
4x+3(3+2x)=14
4x+9+6x=14
10x=5
/10 /10
x=0.5 or 1/2
then fill the x in the function, get y.(each function will work)
2y=6+4x
2y=6+4(1/2)
2y=6+2
2y=8
y=4
x=0.5 y=4

Yall please help asap its important

Answers

Answer:

x = 8, perimeter of triangle = 22 units

Step-by-step explanation:

the perimeter is the sum of the sides of the triangle , that is

x + x + 2 + x - 4 ( collect like terms)

= 3x - 2

the perimeter of a rectangle is calculated as

2 ( length + breadth )

= 2(x + 3) ← distribute parenthesis by 2

= 2x + 6

equate the 2 expressions for perimeter

3x - 2 = 2x + 6 ( subtract 2x from both sides )

3x - 2x - 2 = 2x - 2x + 6 ( simplify both sides )

x - 2 = 6 ( add 2 to both sides )

x - 2 + 2 = 6 + 2 ( simplify both sides )

x = 8

The perimeter of triangle is then

= 3x - 2

= 3(8) - 2

24 - 2

= 22 units

A scientist is working with 13 meters of gold wire. How long is the wire in millimeters?

Answers

The wire is 13,000 millimeters long

1 Meter=1,000 millimeters

1,000 millimeters x 13 = 13,000 millimeters

Answer: 13,000 mm

Step-by-step explanation:

1 meter = 1000mm

13 x 1000 = 13,000 mm

Side a of a triangle is 4 cm longer than side b. Side c is twice as long as side b. What is the length of each side if the perimeter is 28 cm? Draw and label picture. Show all work with labeled answer.