Find the surface area of the square pyramid using its net
1 answer:
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Answer:
38.46%
Step-by-step explanation:
There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.
There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:
*
= 37!
= 53017895700
The number of possible ways to choose 20 calculators out of 40 calculators will be:
=
=137846528820
The chance will be: 53017895700/ 137846528820 = 0.3846= 38.46%
Answer:
a. 3
Step-by-step explanation:
The number of flowers should be divisible by the number of bouquets.
Since
there should be 5 bouquets, and each bouquet has 5 roses, 9 tulips and 3 snapdragons.
so the answer is
a. 3
Answer:
Second Attempt is faster.
Step-by-step explanation:
He reads 360 words in hour in the first attempt and in the second attempt he reads the same number of words in
hour.
Since, he takes less time in the second time. Less time means the work is done faster.
Therefore, second attempt is faster.