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KATRIN_1 [288]
3 years ago
15

The X-15 rocket plane is

Mathematics
1 answer:
mr_godi [17]3 years ago
3 0
100ft is gonna be the answer
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P: grass is green or Q: 3 is the square root of 10 (P ∨ Q)
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P v Q is a disjunction, which is true whenever P or Q is true or both are true. P v Q is false only when P and Q are both false.

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If that is the case, you have this relation:

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A ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of
djverab [1.8K]

Complete question is;

A 21 ft ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of elevation is?

Answer:

θ = 70.5°

Step-by-step explanation:

The angle of elevation simply means the angle that the ladder makes with the ground. Let's call this angle θ.

I've attached a diagram showing the triangle made by this ladder and the wall.

From the attached diagram, we can see the triangle formed by the ladder and the wall.

We can find the angle of elevation θ from trigonometric ratios.

Thus;

7/21 = cos θ

cos θ = 0.3333

θ = cos^(-1) 0.3333

θ = 70.5°

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Step-by-step explanation:

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I need help on this.
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Answer:

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