Answer:
147
Step-by-step explanation:
Suplementary angles add up to be 180
So 180-33 is 147
There are two real roots (5 and -5) and 4 imaginary roots
Answer:x
=4
permiter=6
area=24
Step-by-step explanation:
Answer:
(B) 0.74 + or - 2.797 × 0.22/√25
Step-by-step explanation:
Confidence Interval = mean + or - t × sd/√n
mean = 0.74 hours
sd = 0.22 hours
n = 25
degree of freedom = n - 1 = 25 - 1 = 24
Confidence level = 99%
t-value corresponding to 24 degrees of freedom and 99% confidence level is 2.797
Confidence Interval = 0.74 + or - 2.797 × 0.22/√25