Answer: 154 cu. in
Step-by-step explanation:
The space you have to measure is a cylinder.
Its height is the same as the height of the pipe, 16 inches.
Its diameter =inner diameter of pipe
= outer diameter of pipe - thickness of walls at each end of diameter
= 6 - 2(1.25)
= 3.5 inches
radius r = 1.75 inches
A cross-section of the cylindrical space is a circle.
area of circle = πr² = π * 1.75² = 9.625
volume = area of circle * height
9.625 * 16
= 154 cu. in.
Answer:
C because the question is greater than or equal to and that's the only option with it.
Answer:
4,12,36,106,324
Step-by-step explanation:
Identify the sequence, then use the formula to find the first term
Answer:
average mass of 4 boys=45
or, average mass of 4 boys=sum of weight of 4 boys/4
or,45=total weight/4
therefore, total weight=180kgs
when a new boy joins average mass becomes 40,so,
average mass of 5 boys=40
or,avaerage mass of 5 boys=sum of weights of all 5 boys/5
or,40=(180+x)/5[since the total weight of 4 boys was 180 kgs from the previous calculation and considering 'x' as the weight of the new boy]
or,200=180+x
so,x=200-180
x=20
therefore the mass of the fifth boy is 20kg
<span>68% of the data will be within one standard deviation of the mean, so 68% of delivery times will be at least 27-3=24 and at most 27+3=30.</span>