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Julli [10]
3 years ago
7

In the figure below, ΔABC ∼ ΔDEF. What is the length of FE?

Mathematics
1 answer:
hichkok12 [17]3 years ago
5 0

Answer:

FE = 12

Step-by-step explanation:

10/15 = 8/FE

10FE = 120

divide both sides of the equation by 10:

FE = 12

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Solve cot x + 2cot x * sin x = 0 for U^ <= x<=180
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Step-by-step explanation:

hello :

cot x + 2cot x  sin x = 0        0≤ x≤ 180

cotx(1+2sinx) =0    means : cotx=0   or  1+2sinx=0

1)  cotx=0   so :  cosx=0  and  sinx ≠ 0   because cotx = cosx/sinx

when :  0≤ x≤ 180  : x=90°

2) 1+2sinx=0  means : sinx = -1/2

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conclusion : one solution : x=90°

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A cone with a diameter of 12 inches has a volume of 640.88 cubic inches. find the height of the cone
BlackZzzverrR [31]

Answer:

The height of the cone is 17\ in

Step-by-step explanation:

we know that

The volume of a cone is equal to

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