Formula:
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<span>Note: , where nPr is the formula for permutations of n objects taken r at a time.</span>
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Example:
<span>How many different committees of 4 students can be chosen from a group of 15?
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Answer:
<span>There are possible combinations of 4 students from a set of 15.</span>
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There are 1365 different committees.</span></span></span>
Answer:
It is 2πrh + 2π
Step-by-step explanation:
Answer: i cant draw A here but B is 84%
Step-by-step explanation:
30%+54%=84% (i think)
Answer:
2665 miles in 13 hours, the rate is 205 mph.
Step-by-step explanation:
410/2 is 205 mph. 205 mph * 13 hours is 2665 miles.
For the 3rd sum
Subtract
(10^5 - 10^2) = 10^3
And for the 4th sum
a) 2(2b+g)
b) b = - 2g/4
c). g = - 4b/2
