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Kay [80]
2 years ago
13

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

Mathematics
1 answer:
Anon25 [30]2 years ago
5 0

Answer:

16

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:

13

Step-by-step explanation:

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4 0
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

4 0
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)

<em>Find out the distance BC</em>

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

<em>Find out the distance AB</em>

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

<em>Find out the area</em>

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

4 0
3 years ago
Solve.<br> x – 6 = –14<br> a. –20<br> b. 20<br> c. 8<br> 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:

600,000, 50,000, 9,000, 200, 30, 4

4 0
2 years ago
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