What is the value of x? Enter your answer in the box. __cm
1 answer:
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Answer:
Step-by-step explanation:
You have to group all of the same one's together and however many there is, you add that number as the exponent.
There were 2 "(-2)" so that became , and there were 5 "7" so that became
. You keep the symbol and put it together which became
Answer:
quart
Step-by-step explanation:
Given:
Riley drink 4/5 quart of iced tea
And her friend drink 0 3/10 quart of iced tea
Question asked:
how much more of a quart of iced tea did Riley drink than her friend = ?
Solution:
Riley drank of iced tea =
Her friend drank of iced tea =
=
We will subtract the share of her friend from Riley's share
Riley drank more than her friend =
=
=
Thus, Riley drank quart more than her friend.
Answer: (36.7, 39.3)
Step-by-step explanation:
Confidence interval for population mean:
, where n= sample size,
= sample mean,
= population standard deviation,
= critical z value.
Given: n= 40 ,
Critical z-value for 90% confidence = 1.645
Then, required confidence interval:
Hence, a 90% Confidence Interval = (36.7, 39.3)