(urgent) someone i do not get these questions and i only get one try to insert the correct answer. (if will mark your answer as brainliest)

see explanation

Step-by-step explanation:

1

Using right ΔBCD and the tangent ratio to solve for BC

tan40° =

Multiply both sides by 20

20 × tan40° = BC

BC ≈ 16.8

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2

Using right ΔABC and the cosine ratio to solve for AB

cos30° = =

Multiply both sides by AB

AB cos30° = 30 ( divide both sides by cos30° )

AB = ≈ 34.6

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3

Using the tangent ratio

tanA = = , hence

A = ( ) ≈ 22.6°

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4

Using the sine ratio

sin58° =

Multiply both sides by x

x sin58° = 4 ( divide both sides by sin58° )

x = ≈ 4.7

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5

Any of the 3 trig ratios may be used here since all 3 sides are given.

Using the tangent ratio

tan58° =

Multiply both sides by x

x tan58° = 4 ( divide both sides by tan58° )

x = ≈ 2.5

mark other person brainliest

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi