Remember
if |x|=y
assume
x=y and -x=y or
x=y and x=-y
so
-6|2x-9|+1=-17
minus 1 from both sides
-6|2x-9|=-18
divide both sides by -6
|2x-9|=3
assume
2x-9=3 and2x-9=-3
solve
2x-9=3
add 9
2x=12
divide 2
x=6
2x-9=-3
add 9
2x=6
divide 2
x=3
x=3 and/or 6
Answer:
The percentage of people taking the test who score between 391 and 767 is 95%.
Step-by-step explanation:
The Empirical Rule(68-95-99.7 Rule) states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 579
Standard deviation = 94
391 = 579 - 2*94
So 391 is two standard deviations below the mean.
767 = 579 + 2*94
So 767 is two standard deviations above the mean.
By the Empirical Rule:
The percentage of people taking the test who score between 391 and 767 is 95%.
Answer:
The slope is Negative three-halves and contains the point (0, 2).
Step-by-step explanation:
(-3,-4)(3,0)
M= -4/-6 = 2/3
⊥M = -3/2
0 = 2/3(3) + B
B=2
Identity property of multiplication
