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3 years ago

How do you calculate viewing area

Mathematics

1 answer:

Sauron [17]3 years ago

8 0

Answer:

The way to calculate viewing area would be base multiplied by height, but if you would be more specific I would provide a more in detail answer.

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Brianna has saved $32. 1/4 of the $ she earned from babysitting. How much $ did she earn babysitting?

zalisa [80]

If $32 dollars is 1/4 of the money she made babysitting then you would add 32 four times to reach the answer.

Answer - $128 is what she made babysitting.

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3 years ago

16z+29z=pz-v solve for z

Margarita [4]

<span>16z + 29z=pz - v

45z - pz = -v

z(45 - p) = -v

z = </span> $\frac{-v}{(45 - p)}$

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2 years ago

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Frank has a 2-digit number on his baseball uniform. The number is a multiple of 10 and has 3 for one of its factors. What three

denis23 [38]

List all multipluesl of 10 tht are 2 digits
10
20
30
40
50
60
70
80
90

the ones that have a factor of 3 are
30,60,90

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2 years ago

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if the sales tax rate is 7.25% in california, then how much would you pay in los angeles for a pair of shoes that cost $39.00

Anna [14]

It would come out to be $41.8275, so if you round it would cost $41.83.

4 0

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.

7 0

2 years ago