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krek1111 [17]
3 years ago
8

A forest ranger spots a fire from a 21-foot tower. The angle of depression from the tower to the fire is 12 degrees . To the nea

rest foot, how far is the fire from the base of the tower?
Mathematics
1 answer:
Finger [1]3 years ago
7 0

Answer:

Step-by-step explanation:

98.8

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Which expression is equivalent to 42 + 30?
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42+30= 72
6 (36+24)=120 not equal
7 (6+30)=252 not equal
6 (7+5)=72 equal
5 (37+35)= 360 not equal
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3 years ago
A greenhouse manager knows, from experience, that the probability of a plant surviving the winter is 3/5 . If her greenhouse has
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162 plants, if 60% of the plants live you can set it up like this: 60/100 = X/270, to find X, you cross multiply and divide by 100
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3 years ago
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A man starts at a point A and walks 18 feet north. He then turns and walks due east at 18 feet per second. If a searchlight plac
34kurt

Answer:

1/10 per sec

Step-by-step explanation:

When he's walked x feet in the eastward direction, the angle Θ that the search light makes has tangent

tanΘ = x/18

Taking the derivative with respect to time

sec²Θ dΘ/dt = 1/18 dx/dt.

He's walking at a rate of 18 ft/sec, so dx/dt = 18.

After 3seconds,

Speed = distance/time

18ft/sec =distance/3secs

x = 18 ft/sec (3 sec)

= 54ft. At this moment

tanΘ = 54/18

= 3

sec²Θ = 1 + tan²Θ

1 + 3² = 1+9

= 10

So at this moment

10 dΘ/dt = (1/18ft) 18 ft/sec = 1

10dΘ/dt = 1

dΘ/dt = 1/10 per sec

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20log%288%29%20%7D%7Blog%282%29%20%7D%20" id="TexFormula1" title=" \frac{ log(8)
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Answer:

\frac{log(8)}{log(2)}  = 3

Good luck friend, I really hope this helps ya :)

7 0
2 years ago
Find the greatest common factor of
labwork [276]

Answer:

D. xy.

Step-by-step explanation:

The GCF of x and x^2 is x and GCF of y and y^2 is y.

Answer is xy.

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3 years ago
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