3 years ago

Is this right ? Can someone tell me pls

Mathematics

1 answer:

Sliva [168]3 years ago

5 0

Answer:

yeah i think so

Step-by-step explanation:

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a marble is rolled down a ramp. The distance it travels is described by the formula d=490T^2 where d is the distance in centimet

Helga [31]

Answer:

The period when its more than halfway

= 2 < t ≤ 2.83 seconds ( to nearest hundredth).

Step-by-step explanation:

When is is halfway down the ramp d = 3920/2 = 1960 cm, so:

1960 = 490 t^2

t^2 = 1960/490 = 4

t = 2 seconds.

When it reaches the bottom d = 3920 :

t^2 = 3920/490 = 8

t = 2.83 seconds.

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4 years ago

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Your answer would be 51.6

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3 years ago

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4 years ago

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Step-by-step explanation:

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2 years ago

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The average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00. Assuming a normal distribution, if 77 percent

jek_recluse [69]

Answer:

22.97

Step-by-step explanation:

Given that the average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00.

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$P(X$ is given

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z=0.74

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3 years ago