The area is
f(x) = x(x - 3).
The area cannot be zero.
However, f= 0 when x = 0 or when x = 3.
Therefore the domain includes x >3.
Answer: C. all integers greater than 3.
The parabola appears wider when |a| >1, the parabola appears thinner
When a is positive, the parabola opens upwards, but when a is negative parabola opens downwards
Step-by-step explanation:
brainliest?
Answer: $60.75
Steps:
45 * 35%
45 * 0.35 = $15.75
45 + 15.75 = $60.75
40 inches, her drawing takes up 40sq inches, and her paper is 1 inch boxes therefor 40 boxes would be painted
Answer: 1
Step-by-step explanation:
If a random variable x is uniformly distributed in [a,b] the
Mean = 
Standard deviation : 
Let x = Times required for a cable company to fix cable problems
As per given.
x is uniformly distributed between 40 minutes and 65 minutes.
Then , mean =
minutes
Standard deviation :
minutes
Consider , P (mean- 2(Standard deviation) < X < mean+2(Standard deviation) )
= P(52.5-2(7.22)< X < 52.5+2(7.22))
=P(38.06 <X < 66.94 ).
But x lies between 40 minutes and 65 minutes.
Also, [40 minutes, 65 minutes]⊂ [38.06 minutes , 66.94 minutes]
Therefore ,P(38.06 <X < 66.94 ) =1
∴ The probability that a randomly selected cable repair visit falls within 2 standard deviations of the mean is 1.