Consider a population with u = 50 and o = 5 is taken. Find the mean of the sampling

Mathematics

1 answer:

natita [175]1 year ago

8 0

Answer:

50+5=55

mean=55÷30

=1.83

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Simplify the following: (r+s-t)-(r-s+t)

ArbitrLikvidat [17]

R+s-t-(r-s+t)

=2s-t is the answer

People think this answer would be just =2s but I have verified with an online calculator and the answer that textbooks look for regarding this is 2s-t

You would assume you would go r-r and thats 0 so no r's

you would say s-(-s) makes it plus and theres 2s

and you would say -t -(+t) is -t

that's why the answer is 2s-t

At first I also did t-(+t) and thought it would be no t's but the answer is in fact 2s-t

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Solnce55 [7]

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Hence the percentage is $\frac{100200}{650700} times 100$ = 15.40 (approximately).

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2 years ago

A car is driving away from a crosswalk. The formula d = t2 + 2t expresses the car's distance from the crosswalk in feet, d, in t

alukav5142 [94]

Answer:

8 feet per second.

Step-by-step explanation:

We have been given that a car is driving away from a crosswalk. The formula $d=t^2+2t$ expresses the car's distance from the crosswalk in feet, d, in terms of the number of seconds, t, since the car started moving.