Answer:
221.6
Step-by-step explanation:
The statement above can be expressed as
221 [574/1000]
221.574 [ 5 represent tenth; 7 represent hundredth; 4 represent thousandth]
Hence to the nearest tenth would be;
221.6 [ since 7 is more than 5 we round up to 1 to add up to the preceding number]
Answer:
A. The sample size must be at least 30 (some texts say 50).
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean
and standard deviation
, a large sample size, of at least 30, can be approximated to a normal distribution with mean
and standard deviation
.
So the correct answer is:
A. The sample size must be at least 30 (some texts say 50).
Answer:
6.75 years old
Step-by-step explanation:
27=(4a-3)+(4a)
27=16a-12a
27=4a
a=27/4
a=6.75
Answer:
The pyramid with the greater volume has 5in^3 more sand
Step-by-step explanation:
Given
Pyramid A
-- Base Area
--- height
Pyramid B


See attachment for pyramids
The volume of a square pyramid is:

First, calculate the volume of pyramid A



Next, the volume of pyramid B



To calculate how much more sand the greater pyramid has, we simply calculate the absolute difference (d) between their volumes



