Answer:
2.25
Explanation:
1 1/2 * 1 1/2 * 1 = 2.25 or 2 1/4
Answer:
A triangle and a rectangle
Step-by-step explanation:
Answer:
(20.322 ; 23.678)
Step-by-step explanation:
Given that :
ΣΧ = 242 ; ΣΧ2 = 5,413 ; N = 11
Mean, m = ΣΧ / N = 242 / 11 = 22
Standard deviation = sqrt[(ΣΧ2/N) - (ΣΧ/N)²]
Standard deviation = sqrt[(5413/11) - (242/11)^2]
Standard deviation = sqrt(8.0909090) = 2.84
Confidence interval = m ± Zcritical * s/sqrt(n)
Zcritical at 95% = 1.96
Lower boundary = 22 - 1.96*2.84/sqrt(11)
Lower boundary = 22 - (1.96 * 0.8562922) = 20.322
Upper boundary = 22 + (1.96 * 0.8562922) = 23.678
Answer: 55.488 or 55 61/125
Step-by-step explanation:
Because I used a calculator so I know this is right.
Answer: Choice (3):
Remember that negative power is the same as reciprocal if the same magnitude power but positive.