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ad-work [718]
3 years ago
5

A swimming pool has to be drained for maintenance. The pool is shaped like a cylinder with a diameter of 5 m and a depth of 1.7

m. Suppose water is pumped out of the pool at a rate of 12 m3 per hour. If the pool starts completely full, how many hours will it take to empty the pool?
Mathematics
1 answer:
Kitty [74]3 years ago
4 0

Answer:

2.78hrs

Step-by-step explanation:

Volume of water in the pool =πr2h

V = 3.142 * 2.5² *1.7

V = 33.38m³

Emptying the pool out at 12m³ per hour

= 33.38/12

= 2.78hrs

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CONSTRUCTION You are asked to copy a segment CD, construct a segment bisector by paper folding, and label the
lilavasa [31]

The steps on the construction of a segment bisector by paper folding, and label the midpoint M is given below.

<h3>What are the steps of this construction?</h3>

1. First, one need to open a Compass so that it is said to be more than half the length of the said segment.

2. Without altering it, with the aid of the compass, do  draw an art above and also below the said line segment from one of the segment endpoints.

3. Also without altering it and with use the compass, do draw another pair of arts from the other and points. One arc will be seen above the segment and the other or the second arc will be seen below.

4. Then do draw the point of intersection that is said to exist between the pair of arts below the line segment and also in-between the pair of arts as seen  below the line segment

5. Lastly, do make use of a straight edge to link the intersection points between the both pair of arts.

Learn more about segment bisector from

brainly.com/question/24736149

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5 0
2 years ago
Simplify the expression -3 ÷ (-2/5 ​
Harlamova29_29 [7]

Answer:

7.5

Step-by-step explanation:

To solve this expression, we can use PEMDAS or order of operations.

<u>Parenthesis</u>

<u>Exponents</u>

<u>Multiplication>Division (Depends on which comes first from left to right)</u>

<u>Addition>Subtraction (See Multiplication>Division)</u>

So First, lets solve the <u>Parenthesis</u>. -2/5=-.4

So now, our equation is -3/-.4

There is no exponents or multiplication, so lets just <u>Divide</u>.

-3/-.4=7.5

The solution is 7.5

Hope this helps!

6 0
3 years ago
Given the figure, solve for<br> 13.5<br> +<br> 4
nadezda [96]

Answer:17.5

Step-by-step explanation:

3 0
4 years ago
What are the zeros of the polynomial function f(x)=x3-7x2+8x+16
labwork [276]

Answer: x=4, -1

Step-by-step explanation:

Assuming you meant x^3-7x^2+8x+16, the zeros of the question are x = 4 and -1.

Step 1. Replace f(x) with y.

y = x^3-7x^2+8x+16

Step 2. To find the roots of the equation, replace <em>y</em> with 0 and solve.

0 = x^3-7x^2+8x+16

Step 3. Factor the left side of the equation.

(x-4)^2 (x+1)=0

Step 4. Set x-4 equal to 0 and solve for <em>x</em>.

x-4=0

Step 5. Set x+1 equal to 0 and solve for <em>x</em>.

x=-1

The solution is the result of x-4=0 and x+1=0.

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5 0
3 years ago
L
Sloan [31]

Answer:

the height between the table and the ceiling is 10 feet

Step-by-step explanation:

just subtract the 12.5 (height of the floor to ceiling) by 2.5 (height of the table)

4 0
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