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stich3 [128]
3 years ago
10

a toy ball expands and contracts. When it is completely closed, it has a diameter of 15.5. Find the volume of the ball when it i

s completely closed. Round to the nearest cubic inch.
Mathematics
1 answer:
horrorfan [7]3 years ago
3 0
Volume of a sphere is 4/3pi∗r3. r is half the diameter.
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For brainiest:):):)):):):):):):):)
Effectus [21]

Answer:

1/7

Step-by-step explanation:

There is a 1/7 chance because out of all 7 letters and times you could have chosen a different letter, you chose x which occurs once in the problem.

Hope this helps!

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2 years ago
What is the simplified expression for 3a²+9ab+5-4a²-4ab+3 ​
zheka24 [161]

Answer:

5ab + 8 - 1a^2.

Step-by-step explanation:

Combining like terms, we get 3a^2 - 4a^2 = -1a^2. We get 9ab - 4ab = 5ab. Then we get, 5 + 3 = 8. Together this is 5ab + 8 - 1a^2

5 0
3 years ago
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The dimensions of a big dog house are 2 1/2 the dimensions of a small dog house. If the width of the small doghouse is 2 feet, w
Alchen [17]
   The width of the big dog house is  2.5 times the small dog house. 
   multiply 2 by 2.5 to get your answer. hope this helps :)
6 0
3 years ago
Selina claims single having one exemption. Her state tax deduction is 21% of her federal tax contribution. Calculate the amount
Maurinko [17]

Based on the number of exemptions claimed by Selina and her biweekly gross pay, her state tax will be $16.80.

<h3>How much will Selina pay for state taxes?</h3>

Selina is to pay 21% of her federal taxes.

Seeing as she claims a single exemption and falls in the $840 to $860 bracket, the table shows that her federal tax contribution would be $80.

State taxes are therefore:

= 80 x 21%
= $16.80

Find out more on withholding allowances at brainly.com/question/11308445.

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4 0
1 year ago
Read 2 more answers
jim ordered a sports drink and three slices of pizza for $8.50. His friend ordered two sports drink and two slices of pizza for
inna [77]

Answer:

  • drink cost: $1.75
  • slice of pizza cost: $2.25

Step-by-step explanation:

Let d and p represent the costs of a drink and a pizza slice, respectively. The two orders have a value ...

  d + 3p = 8.50

  2d + 2p = 8.00

Subtracting the second equation from twice the first gives ...

  2(d +3p) -(2d +2p) = 2(8.50) -(8.00)

  4p = 9.00 . . . . . simplify

  p = 2.25 . . . . . . divide by 4

Solving the first equation for d and putting in the value, we have

  d = 8.50 -3p = 8.50 -3·2.25 = 8.50 -6.75

  d = 1.75

The cost of a drink is $1.75; the cost of a pizza slice is $2.25.

4 0
3 years ago
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