Round 3,567 to the nearest ten
2 answers:
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Answer: About 99.7% of sixth-grade students will have
heights between <u>51.1</u> inches and <u>64.9</u> inches.
Step-by-step explanation:
According to the empirical rule, 99.7% of data falls within the three standard deviations from the mean.
Given : Mean:
Standard deviation:=
Then, the 99.7% of sixth-grade students will have heights between
inches and
inches
i.e. inches and
inches
i.e. 51.1 inches and 64.9 inches.
Answer:
1) x= -36.
2) x = 0.
Step-by-step explanation:
1) Taking the 3rd power to both sides and using the following exponent law:
we get:
So this tells us that x = -36.
2) We can distribute the power inside every term. So the left side becomes:
Now, the trick here is to remember that , so replacing 1 with
, which then gives us:
, telling us that 3x = 0 and thus, x = 0.