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Lostsunrise [7]
2 years ago
14

PLEEEEASSSSE HELP MEE

Mathematics
1 answer:
IrinaK [193]2 years ago
7 0

Answer:

x = 22.2

Step-by-step explanation:

Let's set up this problem using cosine law:

x^2 = a^2 + b^2 -2abcos110

where a = 12, b = 15

x^2 = (12)^2 + (15)^2 - 2(12)(15)cos110

= 144 + 225 - 360(-0.342)

= 492

x = 22.2

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Answer:

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1 year ago
A hot air balloon rising vertically is tracked by an observer located 5 miles from the lift-off point. At a certain moment, the
Zigmanuir [339]

Answer:

Step-by-step explanation:

aThe person and the hot air balloon form a right triangle, with the lift-off point as the vertex that form the right angle. If you were to try to solve for the height of the balloon, you would need to use tangent to do so:

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y = xtanθ

What this problem ultimately wants to know, is how the distance of the balloon is changing with respect to time: dy/dt. So we need to take the derivative of the above equation (you need to product rule to do so):

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Answer:

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Step-by-step explanation:

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<u />

<u />y - 2x + 2 = 1 \\  +2x  - 2    +2x  - 2\\y = 2x - 1

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7 0
2 years ago
Read 2 more answers
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