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kipiarov [429]
3 years ago
11

Anyone know the answer to this?

Mathematics
1 answer:
Anit [1.1K]3 years ago
7 0

Hello from MrBillDoesMath!

Answer:

1/64

Discussion:

(2^3) ^ (-2)                       => 2^3 = 2 * 2 *2 = 8

= 8^(-2)                            => negative exp gives reciprocal of time to same

                                             power

= ( /8)^2                           => 8*8 = 64

= 1/64

NOTE; the answer shown selected in the diagram is incorrect as the correct result is a positive, NOT negative,  number. The second choice is the correct one.

Thank you,

MrB

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2 years ago
The amount of grain in a silo is changing at a rate of –35.2 kilograms per hour.
Ainat [17]
Change=change per hour times number of hours
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4 0
3 years ago
The price of an item has risen to $120 today. Yesterday it was $40. Find the percentage increase.
Snezhnost [94]

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200%

Step-by-step explanation:

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7 0
2 years ago
Read 2 more answers
The hypotenuse of a right triangle is 14 centimeters long. One of the legs of the triangle is 6 centimeters. What is the length
BartSMP [9]

Answer: 12.65 cm

Step-by-step explanation:

Use the Pythagoras theorem,

a^2 + b^2= c^2

You are given the hypotenuse , which is c and another leg which is either a or b, does not particularly matter- rearrange to find the missing length

c^2 - b^2 = a^2

14^2 - 6^2 = 160

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Hope this helped :)

5 0
3 years ago
Find the area of a segment of a circle if its arc is 120 degrees and the radius is 3 inches.
Montano1993 [528]

Answer:<u> 9.42 inches</u>, 3π in terms of pi

Step-by-step explanation:

A full circle is 360 degrees, so if the segment has an arc of 120 degrees, it is 1/3 of a regular circle.

To find the area of a circle, we use the equation A = πr^2. In this case, we will divide the equation by 3 because we are only finding 1/ of a circle. So, our equation will be A  = (πr^2)/3.

Using 3.14 for π:

A  = (πr^2)/3.

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A = (π9)/3

A = 3π

A = 9.42

6 0
2 years ago
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