Answer:-27/7
Step-by-step explanation:
f(x)=3/(x+2) -√(x-3)
f(19)=3/(19+2)-√(19-3)
f(19)=3/21 - √(16)
f(19)=1/7-4/1
f(19)=(1 x 1 - 7 x 4)/7
f(19)=(1-28)/7
f(19)=-27/7
Prime factorization: 84 = 2 x 2 x 3 x 7 which can also be written 2² x 3 x 7.
Answer:
A
Step-by-step explanation:
Carlos' score was 2 standard deviations from the mean, so his z-score was 2.0. You can either use the empirical 68-95-98.5 rule, or you can plug it into your calculator as <u>normalcdf(-999, 2) = .977</u>
So 97.7% of people had a score lower than Carlos!
.977 * 1.5 million = 1,465,500 people
Answer:
1 hour
Step-by-step explanation:
300/6= 50
in one hour he drives 50 miles
so the answer is 1 hour