The developer could change her samples to make a more confident answer that is representative by including more players therefore getting a better variety of their times.
Question
Factor 10h+30+50j to identify the equivalent expressions. Choose 2 answers:
Answer:
See Explanation
Step-by-step explanation:
Given
10h+30+50j
Required
Factorize
The options of the questions were not give. However, I'll answer this question to give possible equivalent factors.
To factorize means, we reduce to lowest term.
Looking at individual unit of 10h+30+50j , one'll observe that 5 can divide through.
This gives
Simplify the expression in brackets
Another factor can be gotten by dividing 10h+30+50j through by 10. This gives
Another factor can be gotten by dividing 10h+30+50j through by 2. This gives
Hence, the possible factors that can be gotten from 10h+30+50j are
Answer:
C.
Step-by-step explanation:
Since both terms are perfect squares, factor using the difference of squares formula to get you the answer
(7x+9)(7x-9)
<span>solution:
we have, mean =8.4 hrs, std. deviation = 1.8 hrs, sample size n = 40 , X = 8.9
Probability(X<8.9) = ?
we know that, Z = (X - mean)/(std. deviation/(sqrt. n)) = (8.9 - 8.4)/(1.8/(sqrt.40))
Z = 1.7568
from standard normal probabilities table, we have , P(Z<1.7568) = 0.9608
Hence, probability that the mean rebuild time is less than 8.9 hours is 0.9608</span>