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vova2212 [387]
3 years ago
7

PLZ HELP QUICKLY! Find the value of the expression. 10^2

Mathematics
1 answer:
blagie [28]3 years ago
8 0

Answer:

100 is correct answer

Step-by-step explanation:

{10}^{2}  \\  = 10 \times 10 \\  = 100

when ever anything ² , it means that number is multiplied by itself.

in above we multiple 10 with 10 and we get 100.

hope it helped you:)

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sashaice [31]
Question A 
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Question B 
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Question C
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6 0
3 years ago
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The mean of the heights of three buildings A,B and C is 14.2m. The mean of the heights of five buildings A,B,C, D and E is 14.8m
Jobisdone [24]
<h3>Answer:  15.7 meters</h3>

========================================================

Work Shown:

s = sum of the heights of buildings A,B,C

s/3 = mean of the heights of buildings A,B,C

s/3 = 14.2

s = 3*14.2

s = 42.6

The buildings A,B,C have their heights add up to 42.6

--------------

r = sum of the heights of buildings A,B,C,D,E

r/5 = mean of the heights of buildings A,B,C,D,E

r/5 = 14.8

r = 5*14.8

r = 74

--------------

r-s = (sum of heights of A,B,C,D,E)-(sum of heights of A,B,C)

r-s = sum of the heights of buildings D and E

r-s = 74-42.6

r-s = 31.4

(r-s)/2 = mean height of buildings D and E

(r-s)/2 = 31.4/2

(r-s)/2 = 15.7 meters is the average height of buildings D and E.

4 0
2 years ago
Calculate the surface area of the figure below.
valentinak56 [21]

Answer:

a. 1,275.49 m²

Step-by-step explanation:

SA = 2πr² + 2πrh

SA = 2π(7)² + 2π(7)(22)

SA = 98π + 308π

SA = 406π

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8 0
3 years ago
The hypotenuse of a right triangle is 50 and the short leg is 30, find the projection of the leg onto the hypotenuse
gladu [14]
Consider the attached figure. All the triangles shown are similar, so

CB/CA = CD/CB
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projection = 18

6 0
3 years ago
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finlep [7]

Answer:

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12 : 00

min : sec

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Step-by-step explanation:

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