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Xelga [282]
11 months ago
9

Tell whether the number is written correctly in scientific notation. 9.9 times 10*-4

Mathematics
1 answer:
Mnenie [13.5K]11 months ago
6 0
\text{ 9.9 x 10}^{-4}

That is the correct number.

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A particle moves along the x-axis so that its velocity in feet per second at time x, in seconds, is modeled by the quadratic fun
Katyanochek1 [597]

For this case we have the following equation:

y = 2x ^ 2 - 10x + 12

Where, we have the following variables:

x: time in seconds

y: speed in feet per seconds

For the initial velocity, we evaluate x = 0 in the given equation:

y = 2 (0) ^ 2 - 10 (0) + 12\\y = 12

Therefore, the initial speed is 12 feet per second.

Answer:

The particle's initially velocity is 12.

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hodyreva [135]

Answer:

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Step-by-step explanation:

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Dafna1 [17]
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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
1. A windshield wiper blade is 18 in Long. Calculate the area covered by the blade as it rotates through an angle of 122 degrees
sveta [45]

1. Area of a circle is pi x R^2

Area = 3.14 x 18^2

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1017.36 x 122/360 = 345 square inches.

2.

Like above.

Area =3.14 x 75^2 = 17,662.5 square feet

17662.5 x 80/360 = 3,925 square feet.

4 0
3 years ago
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