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3 years ago

I need help with an online math class please. Thanks!

Mathematics

1 answer:

dimulka [17.4K]3 years ago

8 0

Answer:

turn off the WiFi. simple xD

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If h = 12 units and r = 4 units, what is the volume of the cone shown above? Use 3.14 for .

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Answer:

200.96 units

Step-by-step explanation:

Use the formula for the volume of a cone $V=\pi r^{2} \frac{h}{3}$

Plug in the values ( $\pi$ =3.14) and multiply them all out

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3 years ago

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2 years ago

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Subtract. Express your answer in simplest form. 5/8−1/6 =

bazaltina [42]

Answer:

$0.45833.....$ OR $\frac{11}{24}$

Step-by-step explanation:

The common denominator is 24.

You get: $\frac{15}{24}$ and $\frac{4}{24}$

Subtracting you get: $\frac{11}{24}$

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4 0

3 years ago

There are 99 males and 121 females participating in a marathon. What percent of the participants are female?

ioda

To do this, we first want to see how many participants there are in total by adding both males and females.

$99+121=220$

Now we know that there were 220 total participants, but only 121 were females.

This allows us to set up the fraction 121/220= the percent female.

$\frac{121}{220} =0.55$

or 55%

8 0

2 years ago

PLEASE HELP ME ASAP!

AleksandrR [38]

Ok so first we find the equation that equals one variable.

2y = -x + 9

3x - 6y = -15

We solve for y.

2y = -x + 9

y = -x/2 + 9/2

Then we plug in this y value into the other equation to keep only one variable so we can solve for it.

3x - 6y = -15

3(-x + 9/2) - 6y = -15

-3x + 27/2 - 6y = -15

-9y + 27/2 = -15

-9y = 3/2

-y = 3/18

y = -3/18

Then we plug in this numerical y-value into the first equation which we found out by solving an equation for y.

y = -x/2 + 9/2

-3/18 = -x/2 + 9/2

-84/18 = -x/2

-x = 9 1/3

x = -28/3

Your answer would be (-28/3, -3/18)

Hope this helps!

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3 years ago

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