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3 years ago

Write an equation of the line below.

Mathematics

1 answer:

statuscvo [17]3 years ago

8 0

Answer:

y = -4x - 4

Step-by-step explanation:

Rise/Run

-8/2 = -4

Y-intercept:

-4

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Keshon gets a loan for $4,000 to buy a car. It will take him 3 years to pay off the loan He will be charged 6.5% simple interest

Hitman42 [59]

We can use the interest formula:

Let i = interest.

Let p = principal

Let r = interest rate

Let t = time.

I = p × r × t. Plug in our numbers

6.5% = 0.065

I = $4,000 × 0.065 × 3 = $780.

He will pay $780 in interest after 3 years.

6 0

3 years ago

Read 2 more answers

a square painting has an area of 81x^2-90x-25. A second square painting has an area of 25x^2+30x+9. What is an expression that r

galina1969 [7]

Answer:

The answer in the procedure

Step-by-step explanation:

Let

A1 ------> the area of the first square painting

A2 ----> the area of the second square painting

D -----> the difference of the areas

we have

$A1=81x^{2}-90x-25$

$A2=25x^{2}+30x+9$

case 1) The area of the second square painting is greater than the area of the first square painting

The difference of the area of the paintings is equal to subtract the area of the first square painting from the area of the second square painting

D=A2-A1

$D=(25x^{2}+30x+9)-(81x^{2}-90x-25)$

$D=(-56x^{2}+120x+34)$

case 2) The area of the first square painting is greater than the area of the second square painting

The difference of the area of the paintings is equal to subtract the area of the second square painting from the area of the first square painting

D=A1-A2

$D=(81x^{2}-90x-25)-(25x^{2}+30x+9)$

$D=(56x^{2}-120x-34)$

4 0

4 years ago

If f(x) = 3x + 12, find the value of x so that f(x) = 36.

Fynjy0 [20]

Answer:

The answer is 8 .

Step-by-step explanation:

f(x)=36

36=3x+12

36-12 and 12 -12

36-12=24

24 divided by the 3 that left in the equation equals 8 .

36=3x+12

-12 -12

24=3x

divided 24 by 3 and get 8

6 0

3 years ago

Read 2 more answers

If eggs cost $3 per dozen. how much would 8 eggs cost?

weeeeeb [17]

12 eggs = $3
8 eggs = (8÷12) × $3

hope this was helpful! :)

3 0

4 years ago

Read 2 more answers

Evaluate the function f (x)= x squared -4x+1 at the given values of the independent variable and simplify.

Ivan

<h3>Given</h3>

... f(x) = x² -4x +1

... a) f(-8)

... b) f(x+9)

... c) f(-x)

<h3>Solution</h3>

In each case, put the function argument where x is, then simplify.

a) f(-8) = (-8)² -4(-8) +1 = 64 +32 + 1 = 97

b) f(x+9) = (x+9)² -4(x+9) +1

... = x² +18x +81 -4x -36 +1

... f(x+9) = x² +14x +46

c) f(-x) = (-x)² -4(-x) +1

... f(-x) = x² +4x +1

8 0

3 years ago