Answer:
a and b are relative on maxima interval x =-4,x=0
45 12/25 I think that is it
Answer:
(483.981 ; 504.019)
Step-by-step explanation:
Given :
σ = 100
Sample size, n = 661
xbar = 494
We use the Z distribution since we are working with the population standard deviation ;
C.I = xbar ± (Zcritical * σ/√n)
Zcritical at 99% = 2.576
C.I = 494 ± (2.576 * 100/√661)
C.I = 494 ± 10.019
Lower boundary = (494−10.019) = 483.981
Upper boundary = (494+10.019) = 504.019
C.I = (483.981 ; 504.019)
Answer:
2 g/cm^3
Step-by-step explanation:
D=m/V
=20g/10cm^3
=2g/cm^3
Hope this helps but I think the answer is the first option (7/15)