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3 years ago

9

If the cicumference of a circle is 75.36 what is the area

1 answer:

andreev551 [17]3 years ago

6 0

Answer:

b ghe be

Step-by-step explanation:

anda frienedn 68 hrl

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How does estimating an addition or subtraction problem help you know if an answer is reasonable?

kiruha [24]

Answer:

It helps you know if the answer is reasonable because when you do the work and get your answer, you can check if it is close to your estimate, and if it is, it is most likely correct. On the other hand if it is not close to the estimate it is most likely wrong, unless you estimated incorrectly.

Step-by-step explanation:

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2 years ago

Find the volume of a trough 5 meters long whose ends are equilateral triangles, each of whose

yawa3891 [41]

Answer:

$V=5\sqrt{3}\ m^3$

Step-by-step explanation:

we know that

The volume of a trough is equal to

$V=BL$

where

B is the area of equilateral triangle

L is the length of a trough

step 1

Find the area of equilateral triangle B

The area of a equilateral triangle applying the law of sines is equal to

$B=\frac{1}{2} b^{2} sin(60\°)$

where

$b=2\ m$

$sin(60\°)=\frac{\sqrt{3}}{2}$

substitute

$B=\frac{1}{2}(2)^{2} (\frac{\sqrt{3}}{2})$

$B=\sqrt{3}\ m^{2}$

step 2

Find the volume of a trough

$V=BL$

we have

$B=\sqrt{3}\ m^{2}$

$L=5\ m$

substitute

$V=(\sqrt{3})(5)$

$V=5\sqrt{3}\ m^3$

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3 years ago

HELPPPPPPPPPPPPPPPPPPPPP

77julia77 [94]

Answer:

ill guess -2 for u

Step-by-step explanation:

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2 years ago

Find the missing angle measure of the triangle

Tomtit [17]

Answer: 45°

Step-by-step explanation: add the angles together to get a total of 180°

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2 years ago

Which number is the same distance as 10 from 0 on number line

mote1985 [20]

Answer:

-10

Step-by-step explanation:

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2 years ago

Read 2 more answers