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Sunny_sXe [5.5K]
3 years ago
10

A 9.0 ladder rests against the side of a wall. The bottom of the ladder is 1.5 meters from the base of the wall. Determine the m

easurement of the angle between the ladder and the ground.
Mathematics
1 answer:
maria [59]3 years ago
8 0
Well we know that the 9.0 meter ladder is the hypotenuse And it is a right triangle with base of 1.5 meters. we have the adjacent and the hypotenuse. which is cosine. So:
cos (a) = adjacent/hypotenuse
cos (a) = 1.5/9.0
cos (a) = 1 / 6
a = cos^-1 (1 / 6)
a = 80.4 degrees
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scoray [572]

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so

1/6=1/3*p(A)

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Answer:

There is a 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

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In this problem we have that:

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6 0
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Dennis_Churaev [7]

Answer:

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3 0
3 years ago
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9a-4(2a+5).<br> I really need help with this question
slava [35]

First you had to expanded form.

-4(2a+5)=-8a-20

9a-8a-20

Finally you can also add by similar to elements.

9a-8a=a

a-20

Final answer: \boxed{=a-20}

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

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