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Drupady [299]
2 years ago
7

jill also got the expression 7x+1 and then wrote her answer 1xt7 is her expression an equivalent expression how do you know?

Mathematics
1 answer:
Dahasolnce [82]2 years ago
4 0

Answer:

No

Step-by-step explanation:

7x+1 means 7 x X + 1

1xt7 means 1 x X x T x 7

so they are different

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If 9m=5n then m/n=?
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Step-by-step explanation:

9m = 5n

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Emir is standing in a treehouse and looking down at a swingset in the yard next door. The angle of depression from Emir's eyelin
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<h3>Answer:  24 feet  (Choice D)</h3>

=============================================

Explanation:

Refer to the diagram below. The goal is to find x, which is the horizontal distance from the base of the tree to the swing set.

Focus on triangle BCD.

The angle B is roughly 30.26 degrees, and this is the angle of depression. This is the amount of degrees Emir must look down (when starting at the horizontal) to spot the swing set.

We know that he's 14 ft off the ground, which explains why AB = CD = 14.

The goal is to find BC = AD = x.

---------------------------

Again, keep your focus on triangle BCD.

We'll use the tangent ratio to say

tan(angle) = opposite/adjacent

tan(B) = CD/BC

tan(30.26) = 14/x

x*tan(30.26) = 14

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x = 23.9965714046732

That value is approximate. Make sure your calculator is in degree mode.

That value rounds to 24 feet when rounding to the nearest whole foot.

6 0
3 years ago
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