3 years ago

Davis runs at a speed of 4 3/4 miles per hour. at this rate how far can he run in 3 1/2 hours

Mathematics

1 answer:

ch4aika [34]3 years ago

6 0

I hope this helps you

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Anvisha [2.4K]

Assuming width=diameter
diameter/2=radius

area=hpir^2

w=d=2
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h=6

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area=6pi
aprox pi=3.141592
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3 years ago

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g A 5 foot tall man walks at 10 ft/s toward a street light that is 20 ft above the ground. What is the rate of change of the len

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Answer:

$-\frac{10}{3}ft/s$

Step-by-step explanation:

We are given that

Height of man=5 foot

$\frac{dy}{dt}=-10ft/s$

Height of street light=20ft

We have to find the rate of change of the length of his shadow when he is 25 ft form the street light.

ABE and CDE are similar triangle because all right triangles are similar.

$\frac{20}{5}=\frac{x+y}{x}$

$4=\frac{x+y}{x}$

$4x=x+y$

$4x-x=y$

$3x=y$

$3\frac{dx}{dt}=\frac{dy}{dt}$

$\frac{dx}{dt}=\frac{1}{3}(-10)=-\frac{10}{3}ft/s=-\frac{10}{3}ft/s$

Hence, the rate of change of the length of his shadow when he is 25 ft from the street light= $-\frac{10}{3}ft/s$

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Now, there are many types of solids. Hypothesis can be stated as there is a significant discrepancy between solid one from the other sold. Moreover, if the results seems to support the hypothesis then it is somehow reliable and accurate.Thank you for your question. Please don't hesitate to ask in Brainly your queries.

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I think it's c.......

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Yes it is

Step-by-step explanation:

If you us a formula you can predict data points that are not on a graph

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