2(x+2) = 60
x+2 = 30
x = 28
The correct answer is C
1, 3, 5 are functions because they pass the vertical line test
Answer:
Step-by-step explanation:
Hello!
X: the lifespan of a new computer monitor of Glotech.
The average life is μ= 85 months and the variance δ²= 64
And a sample of 122 monitors was taken.
You need to calculate the probability that the sample mean is greater than 86.6 months.
Assuming that the variable has a normal distribution X~N(μ;δ²), then the distribution of the sample mean is X[bar]~N(μ;δ²/n)
To calculate this probability you have to work using the sampling distribution and the following formula Z= (X[bar]-μ)/δ/√n ~N(0;1)
P(X[bar]>86.6)= 1 - P(X[bar]≤86.6)
1 - P(Z≤(86.6-85)/(8/√122))= 1 - P(Z≤2.21)= 1 - 0.98645= 0.013355
The probability of the sample mean is greater than 0.013355
I hope this helps!
Answer:
150 meters
Step-by-step explanation:
1 meter has 100 centimeters.
Answer:
e = 16
Step-by-step explanation:
-5/6e - 2/3e = -24
-5/6e + -2/3e = -24
-3/2e = -24
e = 16
