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3 years ago

128 degree is used in a pie chart to represent 32 people. how many people are there altogether

Mathematics

2 answers:

Lunna [17]3 years ago

7 0

What you would do is multiple 128×32=4,096 which would equal your answe

Mademuasel [1]3 years ago

5 0

(128)/(360) = (32)/(total people)

solve for (total people)...
(128)(total people) = (32)(360)

total people = (32)(360)/(128) = 90 people total

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3 years ago

The wind is blowing N 35.0 degrees W at 1.60 * 10^2 mph. A plane has an engine speed of 3.20 * 10^2 mph. Where should the pilot

andreyandreev [35.5K]

Answer: 24.2° SouthWest

Step-by-step explanation:

First step: DRAW A PICTURE of the vectors from head to tail (see image)

I created a perpendicular from the resultant vector to the vertex of the given vectors so I could use Pythagorean Theorem to find the length of the perpendicular. Then I used that value to find the angle of the plane.

Perpendicular (x):

cos 35° = adjacent/hypotenuse

cos 35° = x/160

→ x = 160 cos 35°

Angle (θ):

sin θ = opposite/hypotenuse

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