Answer:
90 miles
Step-by-step explanation:
2 hours = work
speed = x
Distance to work = y
y = 2x
y = 3(x - 15)
3 * x = 3x
3 * -15 = -45
y = 2x
y = 3x - 45
Let's graph this (attached below)
We must find the point at which they intercept.
They intercept at (45, 90)
That means that x = 45 and y = 90
So, she is 90 miles from her office.
Let's check our work:
y = 2(45)
y = 3(45) - 45
y = y
y = 90
2 * 45 = 90
3 * 45 = 135
135 - 45 = 90
This proves that y = y and that y = 90.
Answer is C
<span>C) {56, 66, 71, 78, 57, 53, 69, 68, 70, 60, 59, 55}
50 - 54: (1) 53
55 - 59: (4) 55,56, 57,59
60 - 64: (1) 60
65 - 69: (3) 66,68,69
70 - 74: (2) 70,71
75 - 79: (1) 78
</span>
Ab represents the The left over of the pizza if you use a picture in your head it would help
Answer:
99.8% probability of at least one failure.
Step-by-step explanation:
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.
Probability of success is 30%.
This means that
Five trials:
This means that
Find the probability of at least one failure in five trials of a binomial experiment in which the probability of success is 30%.
Less than five sucesses, which is:
In which
0.998*100% = 99.8%
99.8% probability of at least one failure.