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3 years ago

Please answer this math question

Mathematics

1 answer:

IgorC [24]3 years ago

8 0

0.
1/2 = 1/2
No need to add anything

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What is the answer is it a Yes or No HELP!!! This is at test and I only need help on this problem

allsm [11]

Answer:

Yes

Step-by-step explanation:

y is said to be a function of x. where x is the independent variable and y is the dependent variable. The height of the stacks is y and the number of cups in the stack is x, so yes, we can say that the height of the stack is a function of the number of cups in the stack.

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3 years ago

If log9 x = 3/2 what is the value of x ? 1 3/2 2 3 27/2 4 . 27

sweet-ann [11.9K]

log 9 X= 3/2

x= 3.5

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3 years ago

If a snowball melts so that its surface area decreases at a rate of 3 cm2/min, find the rate (in cm/min) at which the diameter d

grin007 [14]

Answer:

The diameter decreases at a rate of 0.053 cm/min.

Step-by-step explanation:

Surface area of an snowball

The surface area of an snowball has the following equation:

$S_{a} = \pi d^2$

In which d is the diameter.

Implicit differentiation:

To solve this question, we differentiate the equation for the surface area implictly, in function of t. So

$\frac{dS_{a}}{dt} = 2d\pi\frac{dd}{dt}$

Surface area decreases at a rate of 3 cm2/min

This means that $\frac{dS_{a}}{dt} = -3$

Tind the rate (in cm/min) at which the diameter decreases when the diameter is 9 cm.

This is $\frac{dd}{dt}$ when $d = 9$ . So

$\frac{dS_{a}}{dt} = 2d\pi\frac{dd}{dt}$

$-3 = 2*9\pi\frac{dd}{dt}$

$\frac{dd}{dt} = -\frac{3}{18\pi}$

$\frac{dd}{dt} = -0.053$

The diameter decreases at a rate of 0.053 cm/min.

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3 years ago

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DerKrebs [107]

Answer:

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Step-by-step explanation:

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3 years ago

Can someone answer these? 2(4x+5)=8x+10<br>and<br>2(4v-9)-(3v-11)=-52

Irina18 [472]

For the first one, we will have to factor out the numbers. So 2 times 4x is 8x and 2 times 5 is 10. Our new expression will now be 8x + 10 = 8x + 10. Now, since these are equal, x must equal 1.

7 0

3 years ago

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