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Nadya [2.5K]
2 years ago
11

I am having trouble with this question

Mathematics
1 answer:
Marta_Voda [28]2 years ago
7 0
To find the area of a semicircle you would use the formula A=pie * r ^ 2 If you fill in 40 for r you would get 5026.5482
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Answer and ill mark you BRAINIEST
OlgaM077 [116]

Answer:

Step-by-step explanation:

Circle - A = πr²

Semi circle - A= 1/2 πr²

Trapezoid -  A= 1/2 (base 1 + base 2 ) x height

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Triangle - A= 1/2 base x height

6 0
3 years ago
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Evaluate 2a - 7 when a=3
Eddi Din [679]

Answer:

-1

Step-by-step explanation:

Just substitute your variable in:

(2)(3)-7

Simplify:

2*3=6

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7 0
2 years ago
What are 9 mulitples of 13
vagabundo [1.1K]

Answer:

See below

Step-by-step explanation:

13*1 = 13

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3 0
3 years ago
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Find the circumference in feet.
Rama09 [41]

Answer:

C≈25.13ft

Step-by-step explanation:

Using the formulas

C=2πr

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3 0
2 years ago
How much square units of 50 units
Alborosie

Answer:

7.07106781187

Step-by-step explanation:

if its just asking \sqrt50

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