3 years ago

A boat goes from 84 km/h to 42 km/h in 7 seconds. What is the deceleration?

Mathematics

1 answer:

iogann1982 [59]3 years ago

5 0

Answer:41

Step-by-step explanation:

84-42=41

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Gala2k [10]

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Find an equation of the sphere which contains points A(1, 3, 2) and B(4, 3, 7) and the distance between A and B is equal to the

Marina86 [1]

Answer:

The answer is 8.5=(x-2.5)^2+(y-3)^2+(z-4.5)^2

Step-by-step explanation:

First we need to find diameter of the sphere. The distance point A and point B is:

$d=\sqrt{(4-1)^2+(3-3)^2+(7-2)^2} \\d=\sqrt{3^2+0^2+5^2} \\d=\sqrt{34} \\d=5.83$

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and the center of the sphere is:

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C=(2.5,3,4.5)

We can write the equation of the sphere as:

$r^2=(x-2.5)^2+(y-3)^2+(z-4.5)^2\\8.5=(x-2.5)^2+(y-3)^2+(z-4.5)^2$

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Linear or nonlinear

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Answer:

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Step-by-step explanation:

It increases by a steady rate, so it is linear.

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Which of the following statements is true only if triangles EFI and GFH are similar?

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Answer:

Lines EI and HG are parallel

plz like and vote 5 star if answer is correct, if not still do it as it might help someone somehow

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