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2 years ago

Plz help me with number 1. Plz!!!!

Mathematics

1 answer:

snow_tiger [21]2 years ago

3 0

Answer:

Your screwed

Step-by-step explanation:

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In 28 years a man will be twice as old as he will be in 2 years. How old is he now?<br> +

andrew-mc [135]

Answer:

x+%2B+28+=+2x+%2B+4

x+=+28+-+4

x+=+24

He is 24 now

Step-by-step explanation:

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2 years ago

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If t(n) = 3n-5<br> What is the 3rd term?

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T(3)=3x3-5
t(3)=9-5
t(3)=4

The third term is 4.

Hope this helps :)

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3 years ago

Which number is irrational? Is 2 correct? And please help on 3 I don’t understand this :(

snow_lady [41]

Answer:

Im pretty sure the 3rd choice on #2 is an irrational number...

Step-by-step explanation:

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The management of an electronics firm has determined that the profit the company earns is a function of thenumber of employees i

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we have the function

$P(x)=\ln\left|4x+1\right|+3x-x^2$

For x=2

substitute

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1 year ago

A cone shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to half its height, wh

monitta

Answer:

The portion of the volume of the cup that is filled with water is $\frac{1}{8}$

Step-by-step explanation:

step 1

Find the volume of the paper water cup

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

we have

$r=6\ cm$

$h=12\ cm$

substitute

$V=\frac{1}{3}\pi (6)^{2}(12)$

$V=144\pi\ cm^{3}$

step 2

If the cup is filled with water to half its height, find out what portion of the volume of the cup is filled with water

Remember that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem the similar cone has half the height of the complete cone

The scale factor is equal to 1/2

therefore

The volume of the cup that is filled with water is equal to the volume of the complete cup by the scale factor elevated to the cube

$V=(1/2)^{3}(144\pi)=(1/8)144\pi\ cm^{3}$

therefore

The portion of the volume of the cup that is filled with water is

$\frac{1}{8}$

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3 years ago

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