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ANEK [815]
4 years ago
13

A cylindrical water tank has a radius of 5 feet and a height of 10 feet. The volume of water in the tank is 565.2 cubic feet.

Mathematics
1 answer:
Ede4ka [16]4 years ago
6 0

Step-by-step explanation:

V = πr2h (Volume of a cylinder is equal to the area of a circle multipled by the height)

r = 5

V = 565.2

π ≈ 3.14

substitute the numbers

565.2 =3.14* 52h

565.2 =3.14 * 25h

565.2 =78.5h

7.2 = h

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The sum of squares of two consecutive positive even integers is 52 more than their product. Find these numbers.
natulia [17]

Answer:

The first set of consecutive even integers equals (8 , 6)

The second set is ( - 8 and - 6) which also works.

Step-by-step explanation:

Equation

(x)^2 + (x + 2)^2 = (x)(x + 2) + 52            Remove the brackets on both sides

Solution

x^2 + x^2 + 4x + 4 = x^2 + 2x + 52        Collect the like terms on the left

2x^2+ 4x+ 4 = x^2 + 2x + 52                  Subtract right side from left

2x^2 - x^2 + 4x - 2x + 4 - 52  =  0          Collect the like terms

x^2 + 2x - 48 = 0                                     Factor

(x + 8)(x - 6) = 0

Answer

Try the one you know works.

x - 6 = 0

x = 6

Therefore the two integers are 6 and 8

6^2 + 8^2 = 100

6*8 + 52  = 100

So 6 and 8 is one set of  consecutive even numbers that works.    

========================

What about the other set.

x + 8 = 0

x = - 8

x and x + 2

- 8  and -8 + 2 = - 8, - 6

(- 8 )^2 + (- 6)^2 = 100

(-8)(-6) + 52 = 100

Both sets of consecutive numbers work.


5 0
3 years ago
Read 2 more answers
One factor of 7x2 + 33x – 10 is
stiv31 [10]

7x^{2} +33x-10=0

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7x - 2 = 0\\\implies \boxed{\bold{x = \frac{2}{7} }}

x+5=0\\\implies \boxed{\bold{x=-5}}

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3 years ago
No fake answers please
Fiesta28 [93]

Answer: Top-Left straight line

Step-by-step explanation:

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3 years ago
How much is 500 grams
yawa3891 [41]
The answer is 1.0231.
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3 years ago
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1 2 3 3 2 1 Arrange the digits above into a 6-digit number. The number should have the ones separated by 1 digit, the twos separ
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