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solniwko [45]
3 years ago
11

Use compatible numbers to estimate the quotient394.6 divided by 9

Mathematics
1 answer:
laiz [17]3 years ago
8 0

Answer:

45

Step-by-step explanation:

As a first rough estimate:  divide 390  by 10, obtaining 39.

Another reasonable approximation could be obtained by dividing 450 by 9 and 360 by 9, obtaining 50 and 40.  Since 390 is roughly halfway between 360 and 450, estimate that the quotient is approx 45 (halfway between 40 and 50).

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Answer:

s = 22.5 m

Step-by-step explanation:

the equation for the speed change of a coach moving along a straight section of the road and starting braking at a speed of 20 m / s has the form v (t) = 25-5t. Using integral calculus, determine the coach's braking distance.

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s =\int v(t) dt\\\\s =\int (25 - 5t)dt\\\\s= 25 t - 2.5 t^2 \\

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So,

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tia_tia [17]

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<u>Explanation:</u>

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