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Ilia_Sergeevich [38]
3 years ago
11

I need help on this question

Mathematics
1 answer:
DiKsa [7]3 years ago
8 0

Answer:

The last one: deciliters to hectoliters.

Step-by-step explanation:

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To estimate the height of a mountain, two students find the angle of elevation from a point (at ground level) b = 800 meters fro
Nady [450]

Answer: The height of the mountain is 1,331.4 meters (approximately)

Step-by-step explanation: From the information given, the students were standing at point b which is 800 meters from the base of the mountain and the angle of elevation from that point is 59°. Assuming that the ground is level, we can derive a right angled triangle from this set of details and hence we have triangle ABC, where angle β is the reference angle, (59 degrees), BC is the distance from the students to the base of the mountain (800 meters) and the line AC is the height of the mountain.

The line AC is the opposite, since angle B is the reference angle, therefore we shall use the trigonometric ratio as follows;

Tan β = opposite/adjacent

Tan 59 = AC/800

Tan 59 x 800 = AC

1.6643 x 800 = AC

1331.44 = AC

AC ≈ 1331.4

Therefore the height of the mountain is approximately 1,331.4 meters

6 0
3 years ago
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Sam says 90 ÷ (–9) = 10. Is he correct? Use the drop–down menus to explain your answer. Sam correct. Sam gave an example of a in
Ipatiy [6.2K]

Answer:

The answer is -10 because a negative plus a positive is negative

Answer is -10

Step-by-step explanation:

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3 years ago
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Question 5 is (-3,4)
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2 years ago
Assume you know that a hot-air balloon is currently inflated with a certain amount of air and that the amount is a percent of th
Gemiola [76]

Answer:

<u>Percent air is calculated as:</u>

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3 years ago
SOLVE FOR X<br><br> -5x + 9 = 24
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Answer:

<u>x = -3</u>

Step-by-step explanation:

-5x + 9 = 24

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3 years ago
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