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Natalija [7]
2 years ago
7

The square root of 90 is it closer to 9 or 10

Mathematics
1 answer:
Ksenya-84 [330]2 years ago
3 0

Answer:

9

Step-by-step explanation:

9² = 81

10² = 100

81 ... 90 ... 100

90 - 81 = 9

100 - 90 = 10

9 is less than 10

Hence, √90 is closer to 9

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Find the largest whole number which is a factor of both 42 and 98
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Answer:

14

Step-by-step explanation:

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Which type of equation can be used to model the data in the table below?
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For a fundraiser, a committee decided to use a dice game. For the dice throwing game, you win twice the value of the number you
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3 years ago
A hemispherical tank is filled with water and has a diameter of 4 feet. If water weighs 62.4 pounds per cubic foot, what is the
yulyashka [42]

The total weight of the water in a full tank, to the nearest pound is 1056 pounds, if water filled with water in the 4 diameter hemispherical tank and weighs 62.4 pounds per cubic foot.

Step-by-step explanation:

         The given is,

              A hemispherical tank is filled with water and has a diameter of 4 feet.

              Water weighs 62.4 pounds per cubic foot

Step:1

             Formula to weight of water is,

                          = Volume of water tank × weight of water per foot......(1)

Step:2

             Formula to find volume of the tank is,

                        V = \frac{2}{3} \pi  r^{3}...................................(2)

             From given, r = Radius of Hemisphere

                        r = \frac{d}{2}

                           = \frac{4}{2}

                         r = 2 foot    

            From equation (2),        

                            = \frac{2}{3} × \pi × 2^{3}

                            = 16.755 cubic foot

Step:3

            From equation (1),

                            = 16.775 × 62.4              (∵ Water weighs 62.4 pounds per cubic foot )

                            = 1045.52 pounds        ( ∵ foot^{3} × \frac{pounds}{foot^{3}} = pounds )

                            ≅ 1046 pounds

            Weight of water in tank = 1046 pounds

Result:

           The total weight of the water in a full tank, to the nearest pound is 1056 pounds, if a hemispherical tank is filled with water and it has 4 feet diameter and water weighs 62.4 pounds per cubic foot.

7 0
2 years ago
F(x) = -3x² - 2x<br><br> how to find f (8)
SSSSS [86.1K]

Answer:

f(8) = -208

Step-by-step explanation:

Apply 8 into the equation

f(8) = -3(8)² - 2(8)

      = -192 - 16

      = -208

8 will be your x value since it's implied within the question itself.

6 0
2 years ago
Read 2 more answers
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