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12345 [234]
3 years ago
12

Please solve right now

Mathematics
1 answer:
krek1111 [17]3 years ago
4 0

Answer:

45 mph

251 ft

Step-by-step explanation:

s = \sqrt{30fl}

a.)

s = \sqrt{30(0.85)(80)}

s = \sqrt{2040}

s = 45

Answer: 45 mph

b.)

80 = \sqrt{30(0.85)l}

80^2 = (\sqrt{25.5l})^2

25.5l = 6400

l = 251

Answer: 251 ft

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Answer:

C and D

Step-by-step explanation:

The quadratic formula is

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B

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Answer:

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