Answer:
x-ints: (2,0) & (4,0)
y-int: (0,-8)
vertex: (3,1) *highest point of the graph
line of symmetry: x = 3 *x-value in the middle of x-ints
a value is -# *if parabola points done it's negative, if it points up it's positive
8 hours is 1/4 of the time the gym is open. 1/4 is a quarter. You need to times 8 by 4 which equals 32. The gym is open for 32 hours. Hope this helped
The answer would be 270 cookies would be needed to serve 90 students
Answer:
x = 8
Step-by-step explanation:
For the triangles to be congruent, then the legs
ED = AB, that is
4x + 2 = 34 ( subtract 2 from both sides )
4x = 32 ( divide both sides by 4 )
x = 8
Answer:
13.44% probabilith that at most 3 are in excellent health.
Step-by-step explanation:
For each adult, there are only two possible outcomes. Either they are in excellent health, or they are not. The probability of an adult being in excellent health is independent of other adults. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
43% of adults questioned reported that their health was excellent.
This means that 
13 adults randomly selected
This means that 
Find the probability that when 13 adults are randomly selected, at most 3 are in excellent health.

In which:






13.44% probabilith that at most 3 are in excellent health.