All categories

3 years ago

I just need number 8!!! Please helpppppp

Mathematics

2 answers:

xxTIMURxx [149]3 years ago

8 0

Answer:

Step-by-step explanation:

V=pir^2 h Write down formula

1131=pi6^2 h Substitute known information

/pi6^2 /pi6^2 Divide both sides by pi * 6^2

10.000=h

zavuch27 [327]3 years ago

6 0

Answer:

Step-by-step explanation: brainliest please :)

You might be interested in

What is the area of this circle ( express your answer by using pi)

Leona [35]

Answer: option C

Step-by-step explanation:

You need to use the formula for calculate the area of a circle:

$A_{(circle)}=\pi r^2$

Where the radius of the circle is "r".

You can see in the figure that the diameter of the circle is 6 meters. Then you need to find the radius of the circle with the formula:

$r=\frac{d}{2}$

Where "d" is the diameter of the circle.

Then, the radius is:

$r=\frac{6m}{2}=3m$

Finally, substitute the radius into the formula. Then, the area of the circle is:

$A_{circle}=\pi (3m)^2=9\pi m^2$

7 0

4 years ago

Read 2 more answers

Students are voting on the color of T-shirts to wear on their field trip. There are 160 students-65 boys and 95 girls- going on

Arlecino [84]

Answer:

The representative sample contained more girls than boys.

3 0

3 years ago

PLSS HELP

Dmitry [639]

Answer:

$8,000

Step-by-step explanation:

Let the store earned $x in December.

Therefore,

Money spent to buy new inventory $=\frac{1}{4} x$

Remaining money $= x - \frac{1}{4} x =\frac{3}{4} x$

Money used to pay bills $=\frac{1}{2} \times \frac{3}{4} x=\frac{3}{8} x$

Money still left over = $3,000

Total money earned in December $= \frac{1}{4} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{1}{4} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{2}{8} x+ \frac{3}{8} x+3,000$

$\therefore x= \frac{5}{8} x+ 3,000$

$\therefore x- \frac{5}{8} x=3,000$

$\therefore \frac{8x-5x}{8} =3,000$

$\therefore \frac{3x}{8} =3,000$

$\therefore x =3,000\times \frac {8}{3}$

$\therefore x =1,000\times 8$

$\therefore x =\$8,000$

Thus, total money earned in December is $8,000.

3 0

3 years ago

A 10-foot ladder is to be placed against the side of a building. The base of the ladder must be placed at an angle of 72 degrees

r-ruslan [8.4K]

[protection so you don't fall.<span />

8 0

3 years ago

Help please!!!

Yuliya22 [10]

Hi there!

Adjacent angles, or angles that are next to each other, add up to 180 degrees. They are supplementary.

Examples: 1 and 4, 3 and 4, 2 and 3, 1 and 1

Opposite angles, or angles that are opposite of each other, have the same measure.

Examples: 1 and 3, 2 and 4

I hope this helps!

8 0

4 years ago