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Aloiza [94]
2 years ago
12

A hollow ball is made of rubber that is 2 centimeter thick. The ball has a diameter of 20 centimeters at the outside surface.

Mathematics
1 answer:
MissTica2 years ago
8 0

Answer:

628.57CM²

Step-by-step explanation:

20/2=10

VOLUME OF CYLINDER=PIR^2H

22/7*10*10*2=628.57

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In the figure, what is m∠ABE? What is m∠DBE? Enter your answers in the boxes.
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Here is the link to find the answer. Good Luck!

Step-by-step explanation:

bit. ly/3a8Nt8n

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3 years ago
If you have one quarter, nine pennies, six dimes, and one nickle, how much money would you have?
Nady [450]

Answer:

99 cents

Step-by-step explanation:

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2 years ago
Read 2 more answers
Equation of a Circle: Mastery Test
xenn [34]

Answer:

(x-1)^2+(y+1)^2=3

Step-by-step explanation:

x² + y2 - 2x + 2y - 1 = 0

add the 1 to get it to the other side of the equation

x² + y2 - 2x + 2y  = +1

group the x's and y's

(x² -2x) + (y2+2y) = +1

then you'll complete the  square on the -2x and + 2y. that just means divide by two and then raise it to the 2nd power.

so (-2/2)^2 and (+2/2)^2

(x²-2x+1)+(y2+2y+1) = 1+1+1

you add the one's to the other side because whatever is done to one side must be done to the other

you'll then need to factor again.

(x-1)^2+(y+1)^2=3

to factor it take one of your squared x's, the sign of the middle term within the parentheses , then the square root of the last term within the parentheses. remeber to put your ^2 (raised to the 2nd power) outside of the parentheses  when you finish.

7 0
3 years ago
PLEASE HELP!!! WILL AWARD BRAINLIEST!!
Tcecarenko [31]

Answer:

  The value of f(1) is larger than the value of f(3)

Step-by-step explanation:

Put the numbers in the equation and do the arithmetic.

  f(1) = -2(1²) +3(1) +10 = 11

  f(3) = -2(3²) +3(3) +10 = 1

11 is larger than 1, so f(1) is larger than f(3).

5 0
3 years ago
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