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2 years ago

N^2+7 at n= -3 help!

Mathematics

1 answer:

Anon25 [30]2 years ago

5 0

Answer:

Step-by-step explanation:

To solve plugin -3 for n

$-3^2+7$

Then, solve using PEMDAS. First, do exponents

$-3^2+7=9+7$

Next, add

$9+7=16$

So, 16 is the final answer.

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What is the remainder when f(x) is divided by x-2 given that f(x)=4x^3-2x^2+x-13?

Ratling [72]

Answer:

Step-by-step explanation:

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2 years ago

8x -6=18 what does x equal

professor190 [17]

Answer:

x = 3

Step-by-step explanation:

8x -6 = 18

Add 6 to both sides.

8x = 24

Divide both sides by 8 to isolate x.

x = 3

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1 year ago

What is the area of the rectangle? shoe your work! do not round anything until the very end and round your final answer to the t

weeeeeb [17]

Answer:

The area of the rectangle is 42 units^2

Step-by-step explanation:

we know that

The area of rectangle is equal to

$A=LW$

In this problem

AB=DC

BC=AD

see the attached figure with letters to better understand the problem

we have that

$L=BC\\W=AB$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have the points

$A(2,-1),B(5,2),C(12,-5),D(9,-8)$

Find out the distance BC

we have

$B(5,2),C(12,-5)$

substitute in the formula

$d=\sqrt{(-5-2)^{2}+(12-5)^{2}}$

$d=\sqrt{(-7)^{2}+(7)^{2}}$

$d_B_C=\sqrt{98}\ units$

Find out the distance AB

we have

$A(2,-1),B(5,2)$

substitute in the formula

$d=\sqrt{(2+1)^{2}+(5-2)^{2}}$

$d=\sqrt{(3)^{2}+(3)^{2}}$

$d_A_B=\sqrt{18}\ units$

Find out the area

$A=(L)(W)$

we have

$L=d_B_C=\sqrt{98}\ units$

$W=d_A_B=\sqrt{18}\ units$

substitute

$A=(\sqrt{98})(\sqrt{18})=42.0\ units^2$

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3 years ago

Solve. x – 6 = –14 a. –20 b. 20 c. 8 d. –8

Nataliya [291]

If you would like to solve the equation x - 6 = - 14, you can calculate this using the following steps:

x - 6 = - 14
x = - 14 + 6
x = - 8

The correct result would be d. - 8.

5 0

3 years ago

Read 2 more answers

Select the digit in the thousands place for 689,234

Travka [436]

Answer:

The answer is 9

Step-by-step explanation:

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2 years ago