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4 years ago

14

Number 8. Find the mean please show your work

1 answer:

lukranit [14]4 years ago

7 0

Find the mean of the number of seats? Or the amount of cars?

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Which rule explains why these triangles are congruent?

ivanzaharov [21]

Answer:

These triangles cannot be proven congruent.

3 0

3 years ago

Find (f-g)(x) when f(x)=3x+2 g(x)=2x^2-4 h(x)=x^2-x+7

Ad libitum [116K]

(f + g)(x) = f (x) + g(x)

= [3x + 2] + [4 – 5x]

= 3x + 2 + 4 – 5x

= 3x – 5x + 2 + 4

= –2x + 6

7 0

3 years ago

An animal shelter houses ferrets, rabbits, and dogs. There are 160 animals at the shelter. Of the animals,1/5 are ferry’s . 7/8

Alina [70]

Answer:

There are 32 ferrets, 112 rabbits and 16 dogs at the shelter.

Step-by-step explanation:

There are 160 animals at the shelter. You know that of this amount of animals, $\frac{1}{5}$ are ferrets. So, the number of ferrets can be calculated by:

$\frac{1}{5}*160$

To multiply a fraction by a whole number, any integer n can be written as the fraction $\frac{n}{1}$ . Then you multiply the numerators and denominators. In this case:

$\frac{1}{5}*160=\frac{1}{5}*\frac{160}{1} =\frac{1*160}{5*1} =\frac{160}{5}$

Now you must reduce to the simplest form. To get a simplified result, divide the numerator by the denominator. In this case:

$\frac{160}{5}$ = 160 ÷ 5= 32

So, <u><em>there are 32 ferrets at the shelter</em></u>. Then, the number of animals remaining is calculated by the difference:

160 animals - 32 ferrets= 128 animals

$\frac{7}{8}$ of the remaining animals are rabbits. Then:

$\frac{7}{8}*128$

Solving in the same way as in the previous case:

$\frac{7}{8}*128=\frac{7}{8}*\frac{128}{1} =\frac{7*128}{8*1} =\frac{896}{8}$

$\frac{896}{8}$ = 896 ÷8= 112

So, <u><em>there are 112 rabbits at the shelter</em></u>. Then the remaining animals will be dogs, which will be calculated by the difference:

128 animals - 112 rabbits= 16

Finally,<u><em> there are 16 dogs at the shelter.</em></u>

5 0

3 years ago

Find the volume of a right circular cone that has a height of 12.1 m and a base with a circumference of 17.7 m. Round your answe

joja [24]

The volume of a right circular cone is

$V=\dfrac{1}{3}\pi r^2\cdot h$ .

If a circumference of a base circle is 17.7 m, then using formula $l=2\pi r$ for circumference of a circle, you can find the radius:

$17.7=2\pi r,\\ \\ r=\dfrac{17.7}{2\pi} =\dfrac{8.85}{\pi}$ .

Then the volume is:

$V=\dfrac{1}{3}\pi r^2\cdot h =\dfrac{1}{3}\pi \left(\dfrac{8.85}{\pi}\right)^2\cdot 12.1=\dfrac{315.90075}{\pi}$ .

4 0

3 years ago

Read 2 more answers

What is the fraction answer

Ket [755]

Answer:

1230 divided by 16 equals 76 seven eighth's

5 0

3 years ago