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il63 [147K]
3 years ago
10

2) On average, 75% of the planes leave on time. If 120 planes left on time

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

Answer:

Step-by-step explanation:160

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Here we are finding x, given the angle and adjacent side. To find x we will use the function cos as cos = a/h.

So let's do cos(35°) = 15cm / x

cos(35°) = 0.8 (1 dp)

x = 15 cm / cos(35°)

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2 years ago
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Question is below (wasn't sure about the answer)
Paha777 [63]

Answer: Choice A)

H = \frac{SA}{2(L+W)} - \frac{LW}{L+W}\\\\

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

Work Shown:

SA = 2(LW + LH + HW)\\\\2(LW + LH + HW) = SA\\\\LW + LH + HW = \frac{SA}{2}\\\\LH + HW = \frac{SA}{2} - LW\\\\H(L + W) = \frac{SA}{2} - LW\\\\H = \frac{\frac{SA}{2} - LW}{(L + W)}\\\\H = \frac{SA}{2(L+W)} - \frac{LW}{L+W}\\\\

This is not the only way to solve for H.

3 0
2 years ago
At 10 am a 6-foot- tall man casts a 4.5 foot shadow. How long a shadow cast by a 50-foot tree?
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1 foot makes=4.5/6
so 50 foot =4.5/6*50 = tree makes 37.5 foot shadow
4 0
3 years ago
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hjlf
It would be B. because the rise over run is 31.25 over 5 which is divided to 6.25 which is rounded to 6.3
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