Answer:
Less than 8 hours
Step-by-step explanation:
Kahn
Answer:
X + (X+1) +(X+2)
(X+(X+1)) = 3 *(X+2) + 17
2X +1 = 3X + 6 +17
X = -22
So the three integers are -22 -21 and -20
Double-Check *******************
(-22 -21) = 3 * (-20)
-43 = -60 +17
Step-by-step explanation:
First, substitute 4 into x
Then multiply 4 times 4
Subtract 2
Then subtract 5 from both sides
Answer:
1. No
2. No
3. Yes
4. No
5. Yes
6. No
Step-by-step explanation:
If you want to check if a graph is a function, do a vertical line test. For every vertical line, there should be only 1 point on the line if the graph is a function.
Answer:47.725%
If the mean (μ) is 80, and the standard deviation (σ) is 5, then all scores between 80 and 90 would fall between 0 and 2 standard deviations above the mean.
Using the equation for Z score (Z = (X-μ)/σ) for each X value (80 and 90) then the Z scores are 0 and 2, respectively.
Using a normal distribution table, it can be found that P(80 < z) = .5 (this is the probability that a random score would be greater than 80. It makes sense that it is .5 or 50% because 80 is the mean.)
And the P(90 > z) = .97725. (this is the probability that a random score would be less than 90.)
