The 10^-4 means that the decimal point is 4 places to the left of where it is in 8.25 (if the exponent was positive the decimal point would be to the right). If you move the decimal point 4 places to the left you get an answer of 0.000825 which is 8.25 * 10^-4 in standard form.
Answer:
904.9 in^3
Step-by-step explanation:
Given data
We are told that the ball is 12 inches in diameter
R= diamter/2= 12/2= 6 in
The volume of a sphere is given as
V= 4/3πr^3
substitute
V= 4/3*3.142*6^3
V= 4/3*3.142*216
V=2714.688/3
V=904.9 in^3
Hence the volume is 904.9 in^3
ANSWER
EXPLANATION
The given expression is
We remove the perfect squares under the radical sign.
We can now take square root of the perfect squares and simplify them further.
This simplifies to:
This further simplifies to:
.6666666667 that is a equivalent decimal
Answer:
5' 10"
Step-by-step explanation:
We subtract by converting into one measurement. We will choose inches.
8'4"= 96"+4"=100" since 8' has 8(12) inches
2'6"=24+6=30" since 2' has 2(12) inches
Subtract.
100"-30"=70"
We convert back into feet and inches by dividing by 12.
70/12= 5' 10"
