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Gre4nikov [31]
3 years ago
7

A swimming pool is being filled with water. The diameter of the pool is 27 feet, and the height if 4 feet. Which formula represe

nts the correct way to find the volume of the pool?
Mathematics
2 answers:
larisa [96]3 years ago
7 0
If you are using the word diameter, I am going to assume that the pool is round.  A round pool represents the shape of a cylinder.  The volume for a cylinder is \pi r^2h.  Diameter is twice the radius, so our radius is half of 27 which is 13.5 feet.  So our formula is V= \pi (13.5)^2(4).  That's the forumula for it.  That actual volume measure is 729 \pi ft^3, or multiplying in pi as 3.14, it's 2289.06 cubic feet.
bixtya [17]3 years ago
4 0

Answer:

V = pi (13.5) 2(4)

Step-by-step explanation:

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3 years ago
Solving special systems<br> {y=1/2x+4<br> {-1/2x+y=-5
ryzh [129]

Answer:

no solution

Step-by-step explanation:

Given the 2 equations

y = \frac{1}{2} x + 4 → (1)

- \frac{1}{2} x + y = - 5 → (2)

Substitute y = \frac{1}{2} x + 4 into (2)

- \frac{1}{2} x + \frac{1}{2} x + 4 = - 5 , that is

4 = - 5 ← not possible

This indicates the system has no solution

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Step-by-step explanation:

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3 years ago
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kherson [118]
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3 0
3 years ago
The x-intercept shows that you can buy short-sleeve shirts and long-sleeve shirts. The y-intercept shows that you can buy long-s
Sergeu [11.5K]

Question:

You are ordering short-sleeve shirts (x) for $10 and long-sleeve shirts (y) for $15. Your budget is $300. Write the equation and find the intercepts.

Interpret their meaning.

Answer:

The x-intercept shows that you can buy 30 short-sleeve shirts and 0 long-sleeve shirts.

The y-intercept shows that you can buy 20 long-sleeve shirts and 0 short-sleeve shirts.

Step-by-step explanation:

Given

$10 per short sleeve

$15 per long sleeve

Budget = $300

The above can be represented as:

Total Cost of Short Sleeve + Total Cost of Long Sleeve = Budget

i.e.

10 * x + 15 * y =300

10x + 15y =300

To solve for the y intercept, we set x to 0

10 * 0 + 15y =300

15y =300

Divide through by 15

y = 20

<em>This implies that, you can buy 0 short sleeves and 20 long sleeves</em>

To solve for the x intercept, we set y to 0

10x + 15 * 0 = 300

10x  = 300

Divide through by 10

x = 30

<em>This implies that, you can buy 0 long sleeves and 30 short sleeves</em>

6 0
3 years ago
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