3 years ago

What is identity property mean?

Mathematics

1 answer:

kow [346]3 years ago

6 0

Any number multiplied by one keeps its identity

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Identify the factors of the terms of the expression of 13m-2n

Alex Ar [27]

Hi it is 7n I hope I was right

4 0

2 years ago

Change 3/4 to twelfths

-BARSIC- [3]

<span>To solve, just think, what times 4 equals 12?

4*3 = 12

Therefore, multiply both sides by 3.

3*3 = 9 and 4 *3 = 12

9/12 is the final answer</span>

8 0

3 years ago

At a sporting good store the price of a basketball at $650 during a sale this prices marked down 45% what is the sale price of a

Ne4ueva [31]

The multiplier for decreasing by 45% is 0.55
So you times the multiplier by the price to get your answer:

650 x 0.55 = $357.50

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3 years ago

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

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

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3 years ago

If f(x)=2+abs(x-3) for all x, what's the value of the derivative f'(x) at x=3?

ruslelena [56]

No derivation at x=3 .
only at x=3

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3 years ago