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weqwewe [10]
3 years ago
13

I need help understanding these it’s my school work

Mathematics
1 answer:
cestrela7 [59]3 years ago
4 0

Answer:

I believe that

1) Isosceles, acute

3) Scalene, obtuse

5) Isosceles, right

7) Equilateral, acute

Step-by-step explanation:

This should help in the future. :)

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2 ft
sdas [7]

Answer:

88/7 ft = 12.6 ft (nearest tenth)

Step-by-step explanation:

Circumference of a circle = 2\pir

<u>Radius of inner circle</u>

Given:

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⇒ 22 = 2 x (22/7) x r

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So the radius of the inner circle is 3.5 ft

<u>Radius of outer circle</u>

If the distance between the inner circle and the outer circle is 2 ft, then the radius of the outer circle = 3.5 + 2 = 5.5

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Therefore, circumference of outer circle:

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= 242/7 ft

<u>Difference between circumferences</u>

Difference = outer circle circumference - inner circle circumference

                  = 242/7 - 22

                  = 88/7 ft

                  = 12.6 ft (nearest tenth)

4 0
1 year ago
On the first day of school each student is given $.50 to attend, on day two each student earns a dollar. On day three each stude
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3 years ago
5-2(x+5)=3x-15 solve for X
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Answer:

x= 2

Step-by-step explanation:

5 -2(x +5)= 3x -15

Expand:

5 -2x -2(5)= 3x -15

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Simplify:

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Bring x terms to 1 side, constant to the other:

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Divide both sides by 5:

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3 years ago
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hodyreva [135]

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