Hello from MrBillDoesMath!
Answer:
76.5 ( the last choice)
Discussion:
Sum =
1/2 ( 1! + 2! + 3! +4! +5!) =
1/2( 1 + 2+ +6 + 24 + 120) =
1/2(153) =
76.5
which is the last choice
Thank you,
MrB
Answer:
0.4 is 10 times as much as 0.04
Using it's concept, it is found that the probability of guessing the right combination in one try’s is of
.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem, there are 4 dials, each with a
probability of getting it correct, hence the probability of getting the right combination is given by:
.
More can be learned about probabilities at brainly.com/question/14398287
#SPJ1
6 x 89 is 534
6 x (90 - 1) is 534. BUT you have to subtract 90 from 1 and that's 89. So then you multiply 6 by 89.
6 x 90 is 540 and 6 x 1 is 6. you take 540 subtract 6 and that's 534.
540 - 6 is 534.