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Evgen [1.6K]
3 years ago
13

A ping pong ball has a radius of 1 inch. Which value is closest to the volume of the ball? Use 3.14 for π.

Mathematics
1 answer:
zubka84 [21]3 years ago
5 0
4.19 square inches.Hope i helped!
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Adam writes 18y to simplify an expression with three like terms. What could the expression be?
frosja888 [35]

Answer:

Step-by-step explanation:

5y + 6y + 7y = 18y......any numbers that add(or subtract) to equal 18, stick them before the y....

or it could be : 10y + 10y - 2y = 18y or 5y + 10y + 3y or 30y - 20y + 8y....I could go on forever...lol

8 0
3 years ago
Solve x2 + 6x + 7 = 0.
docker41 [41]

Answer:

x= -7/8

Step-by-step explanation:

8x + 7 = 0

8x + 7-7 = 0-7

8x=-7

8x/8x = -7/8

3 0
3 years ago
Read 2 more answers
The sum of three numbers is 8. twice the smaller is 2 less than the largest, while the sum of the largest and smallest is 5. use
Lorico [155]
X + Y + Z = 8
2x = Z - 2
X + Z = 5
X = 1
1 + Y + Z = 8
Y + Z = 6
1 + Z = 5
Z = 4
1 + Y + 4 = 8
5 + Y = 8
Y = 3
The variables are 1, 3, 4.
4 0
3 years ago
A population has a mean µ = 6 and ∑x = 48. How many scores are in the population?
maks197457 [2]

Answer:

8

Step-by-step explanation:

Recall the formula for the population mean of a data set:

\mu=\frac{\sum x}{N}

We already know that μ is 6 and the sum is 48. Substitute:

6=\frac{48}{N}

Divide both sides by 48:

\frac{1}{8}=\frac{1}{N}

Reciprocal of both sides:

N=8

Thus, there are 8 scores in the population size.

And we're done!

4 0
3 years ago
Read 2 more answers
What is the value of the expression when a=18 and b=14 ?
Ivenika [448]

Answer:

1) 1/2 (18+14) - (18-14)^2

2) 1/2 (32) - (4)^2

2) 16 - 16

3) 0

Therefore, the answer is D

Step-by-step explanation:

Hope this helps :D

5 0
2 years ago
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