3 years ago

Select the assumption necessary to start an indirect proof of the statement.

Mathematics

1 answer:

EastWind [94]3 years ago

5 0

The right answer is B

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Three more than the product of a number and 9 is equal to 7.

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(x*9)+3=7

Step-by-step explanation:

three more is +3

product of a number and 9 is x*9

and equal to seven is =7

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3 years ago

5 yards 2 feet × 2=

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Answer:

11 1/3 yards or 34 feet

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Gravel is being dumped from a conveyor belt at a rate of 30 ft3/min, and its coarseness is such that it forms a pile in the shap

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Answer:

Rate of increase in height = $\frac{dh}{dt}=0.3156ft/min$

Step-by-step explanation:

we know that volume of a cone is given by

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It is Given that diameter equals height thus we have

$V=\frac{1}{12}\pi h^{2}h\\\\V=\frac{1}{12}\pi h^{3}$

Differentiating both sides with respect to time we get

$\frac{dV}{dt}=\frac{1}{12}\pi \frac{dh^{3}}{dt}\\\\\frac{dV}{dt}=\frac{1}{12}\pi(3h^{2}\frac{dh}{dt})$

Applying values and solving for $\frac{dh}{dt}$ we get

$\frac{dh}{dt}=\frac{12\frac{dV}{dt}}{3\pi h^{2}}\\\\\frac{dh}{dt}=0.3156ft/min$

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3 years ago

Which of the following statements best describes the relationship of a relation and a function? Select all that apply. A relatio

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R = sqrt 3 * (V /( pi * h))
V = 62.8
pi = 3.14
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now we sub
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R = sqrt 3 * 1.33
R = sqrt 3.99
R = 1.9 rounds to 2 inches <===

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