Answer:
Option B) 0.0013
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 1000 hours
Standard Deviation, σ = 50 hours
We are given that the distribution of life of bulb is a bell shaped distribution that is a normal distribution.
Formula:
P(bulb would last longer than 1150 hours)
Calculation the value from standard normal z table, we have,
0.0013 is the probability that a randomly selected bulb would last longer than 1150 hours.
Thus, the correct answer is
Option B) 0.0013
Answer:
your answer is A hope this helps
Step-by-step explanation:
Answer:
90, 90, 90, 135, 135
Step-by-step explanation:
The sum of the measures of all angles is 540 deg.
The measures of the angles are: x - 45, x - 45, x, x, x - 45.
Add the expressions of the measures of the angles and set equal to the sum of the measures, 540 deg. Then solve for x. Then use the value of x to find each angle measure.
x + x + x - 45 + x - 45 + x - 45 = 540
5x - 135 = 540
5x = 675
x = 135
x - 45 = 135 - 45 = 90
Answer: 90, 90, 90, 135, 135
It can work well here to simplify inside parentheses first.
_____
The correct selection is not show with your problem statement.
Answer:
Step-by-step explanation:
Your line has the wrong slope. Its slope is ½, but the equation tells you that the slope is ¾.
The point (0,2) is correct, but (-4,0) is incorrect. If x=-4 then y=-1, not 0.
Plot (-4,-1), then draw the line passing through (-4,-1) and (0,2).
