Answer:
The second camera. The second camera is $30 cheaper than the first camera.
Step-by-step explanation:
The equation of the first store is y = 20x + 50. Keep this in mind.
Replace x with 12 in each of these equations to determine which is cheaper.
y = 20(12) + 50 = $290
y = 15(12) + 80 = $260
So the second store is cheaper.
Answe
Step-by-step explanation:
Common factors -10/15 -9/15
Subtract -19/15
Your answer is -19/15
Answer:
If the walking time is greater than or equal to 38.225 hours, than it exceeds 95% probability that is lie in top 5%.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 30 hours
Standard Deviation, σ = 5 hours
We are given that the distribution of waking time is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.95
Calculation the value from standard normal z table, we have,
Thus, if the walking time is greater than or equal to 38.225 hours, than it exceeds 95% probability that is lie in top 5%.