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Tcecarenko [31]
3 years ago
7

A man needed to sell a car. He priced it at 3500 the first day. The second day he reduced the price by 15%. What was the price o

f the car after this reduction?
Mathematics
1 answer:
Arlecino [84]3 years ago
4 0

Answer:

Step-by-step explanation:b

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Answer:

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Step-by-step explanation:

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the length of the shadow of a pole on level ground increases by 90m when the angle of elevation of the sun changes from 58 degre
Anarel [89]

Answer:

The height of the pole is 167 m

Step-by-step explanation:

The given parameters are;

Increase  in the length of the shadow = 90 m

Initial angle of elevation of the Sun = 58°

Final angle of elevation of the Sun = 36°

We have a triangle formed by the change in the length of the shadow and the rays from the two angle of elevation to the top of the pole giving an angle 22° opposite to the increase  in the length of the shadow  

We have by sin rule;

90/(sin (22°)  = (Initial ray from the top of the pole to the end of the shadow's length)/(sin(122°)

Let the initial ray from the top of the pole to the end of the shadow's length = l₁

90/(sin (22°)  = l₁/(sin(122°)

l₁ = 90/(sin (22°) ×(sin(122°) = 283.3 m

Therefore;

The height of the pole = 283.3 m × sin(36°) = 166.52 m

The height of the pole= 167 m to three significant figures.

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3 years ago
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Answer:

The answer is 18.

Step-by-step explanation:

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If Gail practises swimming for 1 and 1/4 hours a day, then in a week she'll do:

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3 years ago
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