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3 years ago

Which of the following does NOT describe x-4

Mathematics

2 answers:

prisoha [69]3 years ago

3 0

Answer:

Need a Picture please repost so I can help you :)

Step-by-step explanation:

Mariulka [41]3 years ago

3 0

Answer:

Step-by-step explanation:

there no pitcher

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if you think that Andy solved the problem correctly, explain how you can tell he is correct. If not, identify and explain all er

nasty-shy [4]

Answer:

25 lol

Step-by-step explanation:

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3 years ago

the perimeter of a rectangle is 68ft the ratio of the length to the width iss 9:8 what are the dimensions of the rectangle

NikAS [45]

Answer:

Step-by-step explanation:

2 * L + 2 * W = 68

2*L = 2* 9x = 9x + 9x

2*W = 2*8x = 8x + 8x

Since the perimeter is 68

9x + 9x + 8x + 8x = 68

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3 years ago

What’s 22 divided by3859

Ivan

The answer is <span>0.00570095879

if im wrong, pls tell me.
hope it helps!~ Cupcakemonsters</span>

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3 years ago

Read 2 more answers

The value of y varies directly with x and y=12 when x=-6 find y when x=-4

FinnZ [79.3K]

Answer:

B)8

Step-by-step explanation:

That is the right answer because when y=12, x=-6

12/-6 = -2

This means that x = y/-2

or y = x * -2

-4 * -2 = 8

Hope I helped

8 0

3 years ago

If a snowball melts so that its surface area decreases at a rate of 9 cm2/min, find the rate (in cm/min) at which the diameter d

zhuklara [117]

Answer:

The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.

Step-by-step explanation:

Surface area of an snowball:

An snowball has spherical format. The surface area of an sphere is given by:

$S = d^2\pi$

In which d is the diameter of the sphere.

In this question:

We need to differentiate S implicitly in function of time. So

$\frac{dS}{dt} = 2d\pi\frac{dd}{dt}$

Surface area decreases at a rate of 9 cm2/min

This means that $\frac{dS}{dt} = -9$

At which the diameter decreases when the diameter is 10 cm?

This is $\frac{dd}{dt}$ when $d = 10$ . So

$\frac{dS}{dt} = 2d\pi\frac{dd}{dt}$

$-9 = 2(10)\pi\frac{dd}{dt}$

$\frac{dd}{dt} = -\frac{9}{20\pi}$

$\frac{dd}{dt} = -0.143$

Area in cm², so diameter in cm.

The diameter decreases at a rate of 0.143cm/min when it is of 10 cm.

8 0

3 years ago