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const2013 [10]
3 years ago
15

What is 680.4•453.6???

Mathematics
2 answers:
Schach [20]3 years ago
6 0

Answer:

308629.44

Step-by-step explanation:

Illusion [34]3 years ago
6 0

Answer:

Hello,

The answer you are looking for is 308629.44. I hope it helped!

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Anastaziya [24]
The answer is 4337 ÷ 9
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2 years ago
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Evaluate the given algebraic expression for x = 7 and y = 3. 2(x + y)2 A.)20 B.)42 C.)200 D.)400
horrorfan [7]
A. you would put in 7 for X and 3 for Y.
3 + 7 = 10
2(10) = 20
6 0
3 years ago
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A 2.2 kg ball strikes a wall with a velocity of 7.4 m/s to the left. The ball bounces off with a velocity of 6.2 m/s to the righ
Naya [18.7K]

Answer:

The constant force exerted on the ball by the wall is 119.68 N.

Step-by-step explanation:

Consider the provided information.

It is given that the mass of the ball is m = 2.2 kg

The initial velocity of the ball towards left is 7.4 m/s

So the momentum of the ball when it strikes is = 2.2\times 7.4=16.28

The final velocity of the ball is -6.2 m/s

So the momentum of the ball when it strikes back is = 2.2\times -6.2=-13.64

Thus change in moment is: 16.28-(-13.64)=29.92

The duration of force exerted on the ball t = 0.25 s

Therefore, the constant force exerted on the ball by the wall is:

\frac{29.92}{0.25}=119.68

Hence, the constant force exerted on the ball by the wall is 119.68 N.

6 0
3 years ago
What is -5/4 to the 2nd power?
Vsevolod [243]

Answer:

\frac{25}{16}

Step-by-step explanation:

(-\frac{5}{4})^2\\\\ \text {Apply power of a fraction rule: } (\frac{a}{b})^x=\frac{a^x}{b^x}\\\\(-\frac{5}{4})^2 = \frac{-5^2}{4^2}=\frac{25}{16}\\\\\boxed{(-\frac{5}{4})^2=\frac{25}{16}}

8 0
3 years ago
The area of a square garden is shown. how long is each side of the garden?
andrey2020 [161]

I believe the answer is 11ft

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3 years ago
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