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3 years ago

10

Please answer.......

1 answer:

Fynjy0 [20]3 years ago

6 0

Answer:

Increase: $6,844

New Price: $64,844

Step-by-step explanation:

58,000x.118=6844

58000+6844=64844

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If f(x) = -4(x+1) ; find the following.

marishachu [46]

Answer:

<u>1. Ans</u>;

$f(x) = - 4(x + 1) \\ \\ f( - 4) = - 4( - 4 + 1) = - 4( - 3) = 12 \\ 8f( - 4) = 8(12) = 96 \\ \\ f(3) = - 4(3 + 1) = - 4(4) = - 16 \ \\ \\ \frac{8f( - 4)}{f(3)} = \frac{96}{ - 16} = - 6$

<u>2. Ans;</u>

$f(x) = - 4(x + 1) \\ \\ f( - 13) = - 4( - 13 + 1) = - 4( - 12) = 48 \\ 3f( - 13) = 3(48) = 144 \\ \\ f(6) = - 4(6 + 1) = - 4(7) = - 28 \\ 5f(6) = 5( - 28) = - 140 \\ \\ 3f( - 13) + 5f(6) = 144 + ( - 140) \\ = 144 - 140 \\ = 4$

<u>3.Ans</u>;

$f(x) = - 4(x + 1)\\ f(1) = - 4(1 + 1) = - 4(2) = - 8 \\ - 4f(1) = - 4( - 8) = 32 \\ \\ f( - 1) = - 4( - 1 + 1) = - 4(0) = 0 \\ 9f( - 1) = 9(0) = 0 \\ \\ - 4f(1) - 9f( - 1) = 32 - 0 = 32$

<u>4.Ans</u>;

$f(x) = - 4(x + 1)\\ f(4) = - 4(4 + 1) = - 4(5) = - 20 \\ - 2f(4) = - 2( - 20) = 40 \\ \\ f( - 5) = - 4( - 5 + 1) = - 4( - 4) = 16 \\ \\ - 2f(4) \times f( - 5) = 40 \times 16 = 640$

I hope I helped you^_^

3 0

3 years ago

Is -81.43 rational or irrational? If it is rational, write the number as a ratio of two integers.

ICE Princess25 [194]

This is rational. It -81.43:-94.52 expressed. -81.45/94.52

6 0

3 years ago

Suppose your cell phone carrier charges you a monthly fee of $30.00 for up to 300 minutes and $0.45 for each additional minute a

tigry1 [53]

Answer: Need more info. We need to know how many minutes over the 300 minutes were used in order to calculate the correct monthly fee.

Step-by-step explanation:

6 0

3 years ago

Factor out the expression 2/3 (4x + 9) detailed explanation of how this is done please

krek1111 [17]

Answer:

$\frac{8x}{3} + 6$

Step-by-step explanation:

I think what you mean is to solve the expression. Lets do it!

$\frac{2}{3} (4x + 9)$

=> $\frac{8x}{3} + 6$

Therefore, $\frac{8x}{3} + 6$ is our answer

8 0

3 years ago

Read 2 more answers

Find the second derivative at the point (2,2), given the function below. 2x^4=4y^3

Bogdan [553]

The second derivative at the point (2,2) is 34/9

<u>Explanation:</u>

<u></u>

2x⁴ = 4y³

2x⁴ - 4y³ = 0

We first need to find dy/dx and then d²y/dx²

On differentiating the equation in terms of x

dy/dx = d(2x⁴ - 4y³) / dx

We get,

dy/dx = 2x³/3y²

On differentiating dy/dx we get,

d²y/dx² = 2x²/y² + 8x⁶/9y⁵

$\frac{d^2y}{dx^2} = \frac{2 X 2^2}{2^2} + \frac{8 X 2^6}{9 X 2^5}\\ \\\frac{d^2y}{dx^2} = 2 + \frac{16}{9}\\ \\$

d²y/dx² = 34/9

Therefore, the second derivative at the point (2,2) is 34/9

7 0

3 years ago