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Mathematics

1 answer:

nika2105 [10]2 years ago

7 0

Answer:

7 millimeters

Step-by-step explanation:

${7 }^{2} = 49$

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horsena [70]

Answer:

1) 102.7 meters

2) 11

Step-by-step explanation:

1) -4.9x² + 75x = -4.9x² + 50x + 38

25x = 38

x = 1.52 s

Height = -4.9(1.52)² + 75(1.52) = 102.67904 m = 102.7 m

2) f(x) = x² + 3x - 2

f(2) = 2² + 3(2) - 2 = 8

f(6) = 6² + 3(6) - 2 = 52

Average rate of change:

(52-8)/(6-2) = 11

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3 years ago

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Answer:

(C)

Step-by-step explanation:

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A 100-meter sprint is a race using only the straight side of a race track. A 400-meter stick is a race that makes one complete a

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Because velocity and speed differ each other by direction, in a 100 m sprint race the person moves in a straight path without changing its direction where as in a 400 m race. The person moves in a lap around the race track and the direction changes as he turns according to the race track.

Step-by-step explanation:

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If a survey of a movie shows that 50% of all people who like the movie, enjoyed the official movie soundtrack too. If a total of

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Answer:

For the first question the sample size is n= 3850

$ME= z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$