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d1i1m1o1n [39]
3 years ago
6

What is the value of (-4 - 31)+(-6-90)? A -10 - 12i B. -10 + 121 C. -2- 6i D. -2 + 6

Mathematics
2 answers:
Nat2105 [25]3 years ago
5 0
Answer is a hope this helps
Aneli [31]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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Charlie is late for the hot-air balloon rally. He stops his car 65 meters from a hot-air balloon already in flight. While Charli
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Answer: 111.4m

Explanation:

1) Trigonometric ratios

You only need to use tangent ratio.

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tangent ratio = opposite-leg / adjacent-leg = balloon height / horizontal distance

tan(28°) = balloon height/65m ⇒balloon height = tan(28°)×65m

balloon height = 34.56m

3) Second, find the height of the balloon,when he is watching at an angle of elevation of 66°

tan(66°) = height of the balloon / 65m ⇒ height of the balloon = tan(66°)×65m

height of the balloon = 145.99m

4) Vertical distance the balloon ascended while Charlie watched.

Subtract the final initial height from the final height:

145.99m - 34.56m = 111.43m

4) Round to the nearest tenth: 111.4 m

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3 years ago
What numbers do you multiply to find 900 this partical product
Bad White [126]

You mean square root of 900?

I gotcha covered

30

7 0
2 years ago
QUESTION 4
prohojiy [21]

The answer should be y=x-9  /3

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Step-by-step explanation:

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The children’s museum has a large fish tank with the dimensions shown. The tank does NOT have a cover. What is the surface area
san4es73 [151]

Answer:

The answer is 230 square feet.

Step-by-step explanation:

Find the area of the bases, and  the total of it is 280. I then subtracted 50 because the "covers" area is 50. That gives you the surface area without the cover

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