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3 years ago

The Science Club has 35 members, 10 girls and 25 boys. What is the ratio of girls to boys in the Science Club?

Mathematics

2 answers:

erica [24]3 years ago

8 0

The answer is B, 2:5

lbvjy [14]3 years ago

7 0

The answer is: B. 2:5

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An airplane spots the floating debris at an angle of depression of 15 degrees. If the plane is at an altitude of 3000. Feet, wha

hodyreva [135]

Answer:

11196.15 km

Step-by-step explanation:

Consider the attached diagram

If the Airplane is at point A and the floating debris at point C, we want to determine the horizontal distance |AB| before they fly over it.

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$Tan \alpha =\frac{Opposite}{adjacent} \\Tan 15 =\frac{3000}{|AB|}$

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The answer would be 189 cm². Multiply the legs of the triangle (12 x 9), and keep that answer. Usually, to measure the area of a triangle, you would multiply the legs and divide by 2, but since there are two congruent triangles in the same shape here, you don't have to. Next step would be to add the area of the square in the middle (9 x 9). Add 12x9 to 9x9 (108 + 81) to get 189.

Hope this helps! If it did, would my mind marking my answer as Brainliest? Thanks :D

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