All categories

3 years ago

Please Help!!! Surface Area of a ball!!! Extra points and brainiest will be given!!!!!

Mathematics

1 answer:

Helen [10]3 years ago

7 0

Answer:

530.66 cm²

Step-by-step explanation:

First, since the formula for the area of a ball is r² x 3.14, you multiply 13 by itself. Since 13x13 is 169, you do 3.14x169. Your answer should be 530.66 cm². (i don't know what the other one is, or if it's just a separate question.)

You might be interested in

PLZ HELP ASAP FOR BRAINLIEST

kykrilka [37]

Answer:

1/4

Step-by-step explanation:

You can set up ratios or fractions for the matching sides.

A/B

1/4 = 1/4

1.1/ 4/4= 1/4

1.5/6 = 1/4

5 0

3 years ago

Read 2 more answers

How do you solve (a+5)^2=25 using quadratics

agasfer [191]

Answer:

(a+5)^2=25 means a^2+5^2=25, a^2=25-25 then a^2=√0, a=0

5 0

3 years ago

Read 2 more answers

Корень x-5=корень 3-x

Firlakuza [10]

√(x-5) = √(3-x)
|x-5| = |3-x|
x-5= 3-x
2x = 8
x=4

4 0

3 years ago

Please help if possible due today!❤️❤️ 18 points

rosijanka [135]

Answer:

Step-by-step explanation:

All of the values are represented correctly on the histogram. It represents both the points and the frequencies in the correct way.

3 0

3 years ago

Read 2 more answers

University Theater sold 465 tickets for a play. Tickets cost $23 per adult and $13 per senior citizen. If total receipts were $7

liq [111]

<u>Answer:</u>

355 senior citizen tickets were sold.

<u>Step-by-step explanation:</u>

Assuming a to the the ticket of adults and s to be the ticket of senior citizens, we can write two equations as:

$a +s=465$ --- (1)

$23a+13s=7145$ --- (2)

From equation 1, $a=465-s$ .

Substitute $a$ in equation 2 to get:

$23 (465-s) + 13s = 7145$

$10695 - 23s +13s =7145$

$-10s = -3550$

$s = 355$

Therefore, there were 355 senior citizen tickets sold.

8 0

3 years ago