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3 years ago

I need help please?!!!

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

7 0

Answer: more than likely 20-30 feet because it would be eaiser to calculate the distane you are than how long it would take to get there

Step-by-step explanation:

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A triangle has two constant sides of length 5 feet and 7 feet. The angle between these two sides is increasing at a rate of 0.9

o-na [289]

Answer: $12.74 ft^2/s$

Step-by-step explanation:

Given

Two sides of triangle of sides 5 ft and 7 ft

and angle between them is increasing at a rate of 0.9 radians per second

let $\theta$ is the angle between them thus

Area of triangle when two sides and angle between them is given

$A=\frac{ab\sin C}{2}$

$A=\frac{5\times 7\times \sin \theta }{2}$

Differentiate w.r.t time

$\frac{\mathrm{d} A}{\mathrm{d} t}=\frac{35\cos theta }{2}\times \frac{\mathrm{d} \theta }{\mathrm{d} t}$

at $\theta =\frac{\pi }{5}$

$\frac{\mathrm{d} A}{\mathrm{d} t}=\frac{35\times cos(\frac{\pi }{5})}{2}\times 0.9$

$\frac{\mathrm{d} A}{\mathrm{d} t}=12.74 ft^2/s$

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3 years ago

8y-9y , show work even tho i know it’s not a lot !

Dmitrij [34]

Answer:

-1y or -y

Step-by-step explanation:

8-9 =-1

substtute for y and there ya go

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3 years ago

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timurjin [86]

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2 years ago

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Natali [406]

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3 years ago

Read 2 more answers

What is 40 3/4 as a decimal

soldier1979 [14.2K]

Answer:

40.75

Step-by-step explanation:

3/4 = 0.75

40 + 0.75= 40.75

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3 years ago