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jolli1 [7]
3 years ago
7

Help please need to be done now​

Mathematics
1 answer:
4vir4ik [10]3 years ago
4 0
The radius of the new sphere is 9


The new SA should be 1017.36 in



New volume should be 3052.08in^3
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What is the value of the expression 5y2 + 4x when x = 2.5 and y = 3?
galina1969 [7]

Answer:

The answer is 40

Step-by-step explanation:

5*3=15

15*2=30

4*2.5=10

So 30+10=40

Hope this helps!!

7 0
3 years ago
What fraction is equivalent to 0.75?<br><br> A. 15/20<br> B. 3/5<br> C. 75/10<br> D. 25/100
Natalka [10]
The answer is A, 15/20. The reason being is it's 1/3, just like .75. hope this helped, have an amazing day :)
5 0
3 years ago
Read 2 more answers
A baseball cost $7 and a baseball bat cost $27. With a 6.5% tax rate, what is the total cost of buying both items?
mestny [16]

Answer:

Total cost of buying both items is $36.21.

Step-by-step explanation:

We are given that a baseball cost $7 and a baseball bat cost $27.

Also, we are given a tax rate of 6.5%

Now, to find the total cost of both items we will find the individual costs of both items by applying tax rate on it.

<u><em>Cost of baseball after applying tax rate is given by;</em></u>

Since we know that by applying a tax on any item it's cost gets increased.

So, Cost of baseball after tax = Cost of baseball before tax + Amount of tax      

Amount of tax = Tax rate \times Cost of baseball

                        = 6.5% \times $7

                        = \frac{6.5}{100} \times 7 = $0.455

So, Cost of baseball after tax = $7 + $0.455 = $7.455

<u><em /></u>

<u><em>Cost of baseball bat after applying tax rate is given by;</em></u>

Cost of baseball bat after tax = Cost of baseball bat before tax + Amount of tax      

Amount of tax = Tax rate \times Cost of baseball bat

                        = 6.5% \times $27

                        = \frac{6.5}{100} \times 27 = $1.755

So, Cost of baseball bat after tax = $27 + $1.755 = $28.755

Now, <u>the total cost of buying both items</u> = Cost of baseball after tax + Cost of baseball bat after tax

                                = $7.455 + $28.755 = $36.21

Therefore, the total cost of buying both items is $36.21.

6 0
3 years ago
In the figure above, solve for x and y.
Naddik [55]

Answer:

x = 34°

y = 15

Step-by-step explanation:

x + 146 = 180

x = 34°

4y + 8 + 5y + 3 + 34 = 180

9y + 45 = 180

y = 15

5 0
3 years ago
Which of the following expressions has a coefficient of 6 and a constant of 9?
Tcecarenko [31]
It would be C because a coefficient is always with a variable and 6 is with a variable which makes it a coefficient

Hope this helps

Have a great day/night
6 0
4 years ago
Read 2 more answers
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