Answer:
54.80 MPa to 55.92 MPa
Step-by-step explanation:
Sample mean fracture strength (x) = 55.36 MPa
Sample standard deviation (s) = 3.99 MPa
Sample size (n) = 196.
The upper and lower bounds for a 95% confidence interval are given by:
The upper and lower bounds of the confidence interval are;
The 95% confidence interval for true average fracture strength is 54.80 MPa to 55.92 MPa
Answer is Rachel worked 3 2/3 hours
Step by step
Dominic worked 2 3/4 hours
Rachel worked (1 1/3) times (2 3/4)
1 1/3 x 2 3/4. Change into an improper fraction
4/3 x 11/4. multiply across
44/12
Simplify
= 3 2/3
Answer:
G
Step-by-step explanation:
Set-up a proportion with equal ratios.
Solve for x by cross multiplying.
3*106 = 50*x
318 = 50x
6.36 = x
Answer:
16
Step-by-step explanation:
Answer:
157,685.9601
Step-by-step explanation:
The area of the base can be found by
The the volume can be measured by the area of the base multiplied by the height.