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djverab [1.8K]
3 years ago
15

if you throw a rubber ball toward the ground at an angle, it will bounce up feom the ground at the same angle. find the unknown

angle measure in the drawing at the right.

Mathematics
1 answer:
Sauron [17]3 years ago
5 0
30°

A strait line is 180°
75°+75°=150°
180°-150°=30°
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Factor the expression over the complex numbers.<br><br> x2+50
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  x² + 50

= x² - (-50)

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8 0
3 years ago
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What is the greatest common factor of 44 and 47?
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1

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4 0
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2 years ago
the ratio of girls to boys in the sixth grade is 5:3. If there are 400 sixth graders, how many boys are there?
PilotLPTM [1.2K]

Answer:

boys = 250

girls = 150

Step-by-step explanation:

5g = 3b       eq. 1

g + b = 400       eq. 2

g = girls

b = boys

From the eq. 2

g = 400 - b

Replacing this last eq. on eq. 1:

5(400-b) = 3b

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From eq. 2

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Check:

from eq. 1

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3 0
2 years ago
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are=A=πr2

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3 0
3 years ago
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