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3 years ago

If the base is 4, what is the value if the exponent is 2? What if the exponent is -2?

Mathematics

2 answers:

BlackZzzverrR [31]3 years ago

7 0

The right answer is 16,1/16

Please see the attached picture for full solution

Hope it helps..

Good luck on your assignment

kobusy [5.1K]3 years ago

6 0

The answer to this question will be A

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Enrique is a library volunteer. On Saturday he shelved 240 books in one hour. At this rate how many books did he shelve in one m

alexandr1967 [171]

Answer is 4 books per minute. 240 (books) divided by 60 (minutes in one hour) equals 4

8 0

3 years ago

Someone help me with this. I forgot my notes in class

Nonamiya [84]

Answer:

see explanation

Step-by-step explanation:

Since AB = BC the the triangle is isosceles and thus

∠ A = ∠ C = 8x

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180

44x + 8x + 8x = 180, that is

60x = 180 ( divide both sides by 60 )

x = 3

Thus

∠ A = ∠ C = 8x = 8(3) = 24°

∠ B = 44x = 44(3) = 132°

6 0

3 years ago

Read 2 more answers

Please solve it 90 POINTS please help- PLEASE HELP its Identify the following for the quadratic relations please slove it all pl

sdas [7]

Answer:

$\boxed{\mathrm{view \: explanation}}$

Step-by-step explanation:

a) elimination method

b) substitution method

c) substitution method

For the first part we can elimate the y variable by subtracting the equations. We can then find the value of x.

For the second part we can substitute y as 2x+5 in the second equation and solve for x.

For the third part we can substitute y as 4x+3 in the first equation and solve for x.

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8 0

2 years ago

If the if a cylinder is 7 in tall and has a volume of 63 Pi inches what is the area of the cross section it goes right down the

vitfil [10]

Answer: $9\pi \ in.^2$

Step-by-step explanation:

Given

The height of the cylinder is $h=7\ in.$

The volume of the cylinder is $V=63\pi \ in.^3$

The volume of the cylinder is the product of area and height

$\Rightarrow V=\pi r^2h\\$

Insert the values

$\Rightarrow 63\pi =A\times 7\\\\\Rightarrow A=\dfrac{63\pi}{7}\\\\\Rightarrow A=9\pi\ in.^2$

Thus, the area of the cross-section is $9\pi \ in.^2$

7 0

2 years ago

The price for a TV was decreased by 20% and then by 10%. By what percent was the new price lower than the original?

Finger [1]

Let's say the tv was 100$ . Reduced by 20% means the tv is now 100 - 20 = 80% of the original price.

0.8(100) = 80$
Reduced again; by 10% means that it is now 100-10 = 90% of the 80$
0.9(80) = 72$

sale price ÷ original price

72$ / 100$ = 0.72 which is 72% of the original price. Which is a mark down of:
100 - 72 = 28%

The new price is 28% lower than the original price.

7 0

3 years ago