8. Multistep Amelia wants to paint three walls in her family room.Two walls are 26 feet long by 9 feet wide. The other wall is 18 feetlong by 9 feet wide.a. What is the total area of the walls that Amelia wants to paint?b. Each gallon of paint covers about 250 square feet. How manygallons of paint should Amelia buy to paint the walls?

Answer:

No solution

Step-by-step explanation:

To solve the equation 5-8|-2x|=-75, we can follow these steps:

Step 1: Isolate the Absolute Value

We begin by isolating the absolute value term by adding 8|-2x| to bothsides of the equation:

• 5-8|-2x|+8|-2x|=-75+8|-2x|

Simplifying the left side, we get:

• 5=-75+|-16x|

Subtracting 5 from both sides, we get:

• |-16x|=-80

Step 2: Remove the Absolute Value

Since the absolute value of a number is always positive, we can split the equation into two cases:

• -16x=80 or -16x=-80

Step 3: Solve for x

Solving for x in the first case, we get:

• -16x=80
• x=-5

Solving for x in the second case, we get:

• -16x=-80
• x=5

Step 4: Check the Solution

We need to check if the solutions we found satisfy the original equation. Plugging in x=-5, we get:

• 5-8|-2(-5)|=-75
• 5-8|10|=-75
• 5-80=-75 (which is false)

Therefore, x=-5 is not a solution.

Plugging in x=5, we get:

• 5-8|-2(5)|=-75
• 5-8|(-10)|=-75
• 5+80=-75 (which is false)

Therefore, x=5 is also not a solution.

Answer:

X=9

Step-by-step explanation:

Open the bracket first

10(x+4)-3=14x+1

10x+40-3=14x+1

Let's collect like terms

10x-14x=1-40+3

-4x=-36

Let's make x the subject of formula by dividing both sides by-4

X=9

Therefore the final answer for x is 9

The function is an exponential growth function, and the percent rate of change of the function is 160%

What is an exponential function?

An exponential function is a mathematical function of the following form: f(x) = aˣ. where x is a variable, and a is a constant called the base of the function.

Given is an exponential function, f(x) = 0.3(2.6)ˣ

This is in the form of,

f(x) = a(b)ˣ

Where,

a is the initial value or y-intercept

b is the base of the exponential function

If b> 1---> we have a growth function

if b< 1---> is a decay function

If r is the percent rate of change

b = (1+r)

We have

a = 0.3

b = 2.6

Since, the value of b >1

Therefore,

f(x) = 0.3(2.6)ˣ is a growth function

For r,

r = b-1 = 2.6-1 = 1.6

Converting into percent,

1.6 x 100 = 160%

Hence, the function is an exponential growth function, and the percent rate of change of the function is 160%

Learn more about exponential function, click;

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Answer:

The Answer is B

Step-by-step explanation: