Answer:
28
Step-by-step explanation:
21 is 75% percent of 28!
I hope this helps <3
Answer:
-5.46
Step-by-step explanation:
-8.24 + 3.7
3.7 can also be written as 3.70
-8.24 + 3.70
3.70
-8.24
____
-5.46
The answer is -5.46

Volume of cone :

Now, let's plug in the values as per the diagram ~




The mean of the combined group is 71.3 --- hope this helps
Answer:
Step-by-step explanation:
Given that population average is 0.8 ampere
Sample size = 9
Sample mean x bar = 1.34 A
Sample std dev s = 0.48

(one tailed test)
Mean difference - 
Std error = 
t test can be used since sigma is not known and sample size small
t statistic = mean diff/std error = 3.5
df = 8
p value = 0.00404