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tresset_1 [31]
2 years ago
10

0.17k - 0.43 = 0.25k + 0.05

Mathematics
1 answer:
Volgvan2 years ago
4 0

Answer:

-6

Step-by-step explanation:

0.17k - 0.43 =0.25k + 0.05

Collect like terms

0.17k - 0.25k =0.43 + 0.05

-0.08k = 0.48

Divide both sides by -0.08

K = 0.48/-0.08

K = -6

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The height of a stuntperson jumping off a building that is 20 m high is modeled by the equation h = 20 -57, where t is the time
cupoosta [38]

A stuntman jumping off a 20-m-high building is modeled by the equation h = 20 – 5t2, where t is the time in seconds. A high-speed camera is ready to film him between 15 m and 10 m above the ground. For which interval of time should the camera film him?

Answer:

1\leq t\geq \sqrt{2}

Step-by-step explanation:

Given:

A stuntman jumping off a 20-m-high building is modeled by the equation

h =20-5t^{2}-----------(1)

A high-speed camera is ready to making film between 15 m and 10 m above the ground

when the stuntman is 15m above the ground.

height h = 15m  

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5t^{2} =20-15

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when the stuntman is 10m above the ground.

height h = 10m  

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kozerog [31]

Answer:

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Step-by-step explanation:

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