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Luba_88 [7]
3 years ago
8

Rewrite using a single positive exponent. (7^2)^-7

Mathematics
1 answer:
saw5 [17]3 years ago
3 0

Answer:

Step-by-step explanation:

we have to remember the power rules, power raised to the power-we use the multiplication

(7^2)^-7=7^-14= 1/7^14

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Need help ASAP
masha68 [24]

Answer:

y=1/2x-8

Step-by-step explanation:

the slope is 1 over 2

5 0
3 years ago
A cylinder and a cone have the same volume. The cylinder has radius x and height y. The cone has radius 1/3x. Find the height of
slavikrds [6]

Answer:

The height of the cone h = 27(x^4)y

Step-by-step explanation:

Firstly, we calculate the volume of the cylinder.

Mathematically, the volume of the cylinder is pi * r^2 * h

using the radius x and height y

The volume V of the cylinder is ;

V = pi * x^2 * y

Now we know they have the same volume V, the formula for the volume of a cone is ;

1/3 * pi * r^2 * h

Substituting the values of r to be 1/3x and the height which is not given here left as h, we have the volume of the cone to be;

V = 1/3 * pi * (1/3x)^2 * h = pi * x^2 * y

The pi gives way as it cancels out on both sides and we have the following;

h/27x^2 = x^2y

Mathematically h = x^2 * y * 27x^2

h = 27(x^4)y

p.s: I personally feel the radius of the cone was to be given as x/3 and not 1/3x . It is in that way we can have the height of the cone purely in y terms and no x

8 0
3 years ago
Remove the parentheses from the following expression, and combine like terms: 3(ax + b2 – c) + 2
expeople1 [14]
Hi, Eswoody01! :)

To remove the parenthesis, we must distribute them:
3(ax + b^2 - c) + 2
3*ax+3*b^2-3*c + 2
Simplify.
3ax+3b^2-3c + 2

This is the most you can simplify this expression.

Hope this helps.
-Benjamin
8 0
4 years ago
if the area of a right isosceles triangle is 128 sq . m, what will be length of the identical side of the triangle​
kolezko [41]

Let's see. What is a right isosceles triangle?

A right isosceles triangle is a triangle with one right angle with at least two equal sides. In this case, it would have to be ONLY two because it has a right triangle.

What is the formula for the area of an isosceles triangle?

When y = the identical side lengths of the triangle,

and A = area,

(y × y) ÷ 2 = A

Note: Remember to compute from left to right! :)

We divide by two because when you multiple the two identical sides, you would get a square. However, we're trying to find the right isosceles triangle, and we divide by two.

Now, we can plug-in our values!

(y × y) ÷ 2 = 128

(y × y) = 64

Now, we square root both sides!

y = √64

y = 8

The length of the identical sides of the triangle is 8 meters.

5 0
3 years ago
Read 2 more answers
Triangle ABC is isosceles, with ab = CB
patriot [66]
I’m pretty sure the correct answer is B.
6 0
4 years ago
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