3 years ago

Please help someone !???a

Mathematics

1 answer:

miv72 [106K]3 years ago

7 0

I think question statement c is false about proof

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Is 7849 a reasonable answer for 49 times 49 why or why not

alekssr [168]

No, because when you multiply 49 by itself,you get 2401 not 7849

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2 years ago

True or false X times X times X times X times X equals 5X

nevsk [136]

Answer:

false

Step-by-step explanation:

X times X times X times X times X equals X^5 not 5X

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3 years ago

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A bag of 15 apples was shared among five boys equally.How many apples did each boy get

andreyandreev [35.5K]

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3 apples

Step-by-step explanation:

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2 years ago

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Think of a number . Multiply by 6 and add 5 is 11.Frame an equation and<br><br>solve .

motikmotik

Answer:

x=1

Step-by-step explanation:

6x+5=11

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2 years ago

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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

pogonyaev

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

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

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

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

8 0

2 years ago