<span>-2b^2 -3b+14=0
(-2b - 7)(b - 2) = 0
hope it helps</span>
Answer:
A.
Step-by-step explanation:
4y = 12x + 16
3x = y - 4
=>
y = 3x + 4
using that in the first equation
4(3x+4) = 12x + 16
12x + 16 = 12x + 16
=> both lines/equations are identical, so they have infinitely many solutions.
Answer:
P(X = 3) = 0.1442
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.
In this problem we have that:
We have to find P(X = 3).
Team A has more spread out times, but they have the fastest times in their lower quartile.
Team B has more consistent times, but their times in the lower quartile are slower than Team A's. Their upper quartile times are faster than Team A's.
Both teams observed the same fastest and lowest times.
Both teams' medians are close to each other, but Team B has a slightly faster median.
