Answer:
Area for rectangle = B*H
Area for triangle = B*H/2
total area = area of triangle + area of rectangle
A of rectangle = 17 * 22 = 374 cm²
Triangle height is not giving so we take 22-10 = 12 cm for the height so
A of triangle = 12*19/2 = 114 cm²
total A = 114 + 374 = 488 cm²
Step-by-step explanation:
Answer: B) 4.963±0.019.
Step-by-step explanation:
Confidence interval for population mean ( when population standard deviation is not given) is given by :-
, where
= Sample mean
n= Sample size
s= sample standard deviation
t* = critical t-value.
As per given:
n= 50
Degree of freedom = n-1 =49

s= 0.067 lb
For df = 49 and significance level of 0.05 , the critical two-tailed t-value ( from t-distribution table) is 2.010.
Now , substitute all values in the formula , we get

Hence, a 95% confidence interval for the mean weight (in pounds) of the mulch produced by this company is
.
Thus , the correct answer is B) 4.963±0.019.
Answer:
B
Step-by-step explanation:

this equals = 3 4/40 =☆ 3 1/10☆
Answer:
-13.8564064606
Step-by-step explanation: