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Lina20 [59]
2 years ago
6

What is the area of the circle shown? Use 3.14 for pi. Help me please I need to pass this test

Mathematics
1 answer:
bazaltina [42]2 years ago
7 0
A=3.14r^2
A=3.14 x 10^2
A=3.14x100
A=314
314cm is your answer
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A triangular pyramid has lateral faces with bases of 6 meters and heights of 9 meters. The area of the base of the pyramid is 15
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Bases+faces=surface area
15.6+81=96.6
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2 years ago
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The architects side view drawing of a saltbox-style house shows a post that supports the roof ridge. The support post is 10 ft t
pochemuha
These calculations are based on the drawing of the file enclosed.

There are three right triangles.

From the big right triangle:

a^2 + b^2 = 25^2

From the small right triangle on the left side:


(25-x)^2 + 10^2 = a^2

From the small right triangle on the right side

x^2 +10^2 = b^2

=> (25-x)^2 + 10^2 + x^2 + 10^2 = a^2 + b^2

=> (25-x)^2 + 10^2 + x^2 + 10^2 = 25^2

=> 25^2 - 50x + x^2 + 10^2 + 10^2 = 25^2

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x = 2.1 and x = 47.9

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Answer: 22.9 ft
8 0
3 years ago
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Step-by-step explanation:

if 5s=3h

34s=?

we will criss cross and

<u>5sx</u><u>?</u>=<u>3h</u><u>×</u><u>34s</u><u> </u>

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To find the y-intercept, solve for "b".

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Our equation would then be y=2/3x-7/3

2)Perpendicular lines have opposite-reciprocal slopes. our previous equation was y=2/3x+1, so our new equation would be -5=-3/2(-4)+b. Now lets solve for b.

b=-11

So our perpendicular equation would be y=-3/2x-11

Hope that was helpful. :)

8 0
3 years ago
In 2000 South Dakota had a population of 754,844. The number of people in South Dakota increased by 7.9% in 2010. What is South
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814,180. Hope I helped. If i didn't I am sos sorry. I would take 7.9 or .079 to 754,844 to get your number.

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3 years ago
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