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Lana71 [14]
3 years ago
12

A ball has a diameter of 8 inches. What is its surface area? (Use 3.14 for pie.) WILL give brainest wh ok answer correct and fas

t.​

Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0
4πr2
= 4×π×42
= 64π
= 201.06192982975 inches2

The answer should be the last one
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You use 4 gallons of water on plants in your garden. At this rate, how much water will it take to water 35 plants?
Whitepunk [10]

Answer: 4 gallons of water for how many plants?

I think all of the problem is not here!

If you leave a comment with the full problem I would love to help you! ;)

5 0
3 years ago
Given that 2x³-5x² - 4x+8 = (Ax - 1)(x-B)(x + 1) + C for all values of x, find the
vfiekz [6]

Answer:

A=2, B=3, C=5

Step-by-step explanation:

Two polynomials are equal for all values of the variable if the corresponding coefficients are the same. The way to solve the problem is to multiply the RHS, rewrite it in a more orderly way

(Ax-1)(x-B)(x+1)+C = \\Ax^3+(A-AB-1)x^2+(B-AB-1)x +B+C

Now, for the two polynomials to be the same we need to have, at the same time

x^3: A=2\\x^2: A-AB-1= -5\\x:B-AB-1=-4\\1: B+C=8

You might notice that we have more conditions than variables, but you can consider one of the two in the middle as a "check" option.

Now, grabbing the value from the first condition into the second we get B=3. Replacing both value in the third we see that the equality still holds, and replacing into the fourth we get C =5.

8 0
2 years ago
14. Two line segments are congruent if they have........... length.
LenaWriter [7]
The same length, if something is congruent it means they’re the same
4 0
2 years ago
I really need help with these questions, i don’t even have a clue how to do these.
Anuta_ua [19.1K]

Answer:

231

Step-by-step explanation:

because the whole circle has an area of 360 so on the right side there is half and a little more so you would cut it in half so you have 180 and on the right side you still have a little left so thats about 10 so now you have 190 then you add 21 +20 you have 41 +190 =231 hope this helps

3 0
2 years ago
Combine like terms 18x-(-7x)+31-(-37)-5x
viktelen [127]

Answer:

20x+68

Step-by-step explanation:

6 0
2 years ago
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