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stich3 [128]
3 years ago
15

In June, a runner ran a mile in 7:45. In September, the runner ran a mile in 5:51.

Mathematics
1 answer:
kolbaska11 [484]3 years ago
3 0
1.4 because you divide 7.45 by 5.51 and you get 1.35 which would be rounded to 1.4


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4.61 m

Step-by-step explanation:

The angle of depression of the bottom of the shorter building from the top of the taller building = 48° equals the angle of elevation of the top of the taller building from the bottom of the shorter building

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tan48° = H/d where H = height of taller building and d = their distance apart = 12 m

H = dtan48° = 12tan48° = 13.33 m

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Using trig ratios

tan36° = h/d where h = height of shorter building

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3 years ago
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2 years ago
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3 years ago
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