Answer:
B. +3 - 1 + 5 - 4
Step-by-step explanation:
The plus means going up and the negative means you are going down.
You are going up 3 floors (+3)
You are going down 1 floor ( -1)
You are going up 5 floors (+5)
You are going down 4 floors (-4)
Let me know if this helps!
For this case we must resolve each of the inequalities and find the solution set.
Inequality 1:

We subtract 7 from both sides of the inequality:

We divide between 12 on both sides of the inequality:

Thus, the solution is given by all values of x less than
Inequality 2:

We add 8 to both sides of the inequality:

We divide between 5 on both sides of the inequality:

Thus, the solution is given by all values of x greater than
The solution set is given by:
(-∞,
) U (
,∞)
Answer:
(-∞,
) U (
,∞)
Answer:
79.77%
Step-by-step explanation:
P(X≥120) = normalcdf(120,1e99,130,12) = 0.7976716754 ≈ 0.7977 = 79.77%
Therefore, about 79.77% of operations last at least 120 minutes
Sample space َََ َ َ َ َ َ َ َ َ َ
It is 9 because you have a 30,60,90 triangle, and then you can use pythagorean theorem.