Hello!
When adding matrices you add the numbers that are in the same position
1 + 4 = 5
0 + 1 = 1
3 + 7 = 10
The answer is (5 1 10)
Hope this helps!
Answer:
0 ≤ 2
Step-by-step explanation:
I just did this one and got it right
Answer:
The chance that their average time is less than 9.5 minutes is 0.0094
Step-by-step explanation:
X is the time it takes a randomly chosen clerical worker in an office to type and send a standard letter of recommendation
We are given that X has a normal distribution
Mean
= 10.5 minutes
Standard deviation
= 3 minutes
n = 50
We are supposed to find the chance that their average time is less than 9.5 minutes i.e. P(X<9.5 minutes)
Formula : 

Z = −2.35
Refer the z table for p value
p value=0.0094
So, P(X<9.5)=P(Z<−2.35)=0.0094
Hence the chance that their average time is less than 9.5 minutes is 0.0094.
Answer:
240
Step-by-step explanation:
Given
60a = b ( divide both sides by a )
60 =
( multiply both sides by 4 )
240 = 