Answer:
1 .Each classroom contains 20 students so we multiply it times 8
90% of (20x8).
90\100 x 160
9x16 students
144 students
Answer:
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Step-by-step explanation:
Answer:
12/5
Step-by-step explanation:
9/5-(-6/10)
9/5-(-3/5)
9/5+3/5
12/5
Answer:

Step-by-step explanation:
The vertical asymptotes need to be in the denominator. They become VA's when that small expression value equals zero.
x=-2 will become (x+2)
and x=-6 will become (x+6)
The x intercepts will be in the numerator.
x=-1 will go with (x+1) and x=3 will go with (x-3)
The horizontal A must be the quotient of the coefficient of the numerator and denominator, since both the top and bottom have the same power.
To make the quotient 7, we place a seven in the numerator so 7/1=7.
95% of a normal distribution lies within ±1.96 standard deviations of the mean. That is, ±3 years represents ±1.96 standard deviations, so ...
.. the standard deviation is 3/1.96 = 1.53 years.