Answer:
-3=b
Step-by-step explanation:
since its a -4 u seperate it from the vari by dividing 12 by the -4 ( since -4b inplies multiplcation. u always do inverse operation.)
For Ms Hurst:
Distance covered by her = Speed * time taken by her
Given:
Speed of Ms Hurst = 10miles/min
Time taken = 60 mins (since they both ran for 60minutes)
Substitute into the formula
Distance covered by Ms Hurst = 10mil/min * 60min
Distance covered by Ms Hurst = 600 miles
Hence Ms Hurst completed 600 miles
Answer: 0.7881446
Step-by-step explanation:
Given : Mean :
Standard deviation :
Sample size :
The formula to calculate the z-score :-
For x= 267 dollars
For x= 269 dollars.
The P-value :
Hence, the probability that they have a mean cost between 267 dollars and 269 dollars.= 0.7881446
Answer:
A
Step-by-step explanation:
( factor out π from each term on the numerator
= ( cancel on numerator/ denominator )
= → A