Sub in -2 for x in the first equation
y = 2/3(-2) + 3
y = -4/3 + 3
y = -4/3 + 9/3
y = 5/3
check..
y = 2/3x + 3
5/3 = 2/3(-2) + 3
5/3 = -4/3 + 9/3
5/3 = 5/3 (correct)
so ur solution is : (-2,5/3)
Answer:
the probability of observing 27 or more students 0.818
Step-by-step explanation:
given data
sample n = 28 students
population = 93%
to find out
the probability of observing 27 or more students
solution
we will find Z value for CI 93%
from z table we get Z is 1.812 for Cl 93%
so P(27 ≤ Z ≤ 28)
we know Z = 0.182
= 1 - 0.182
= 0.818
the probability of observing 27 or more students 0.818
Answer: B
Work:
Since the general formula of an arithmetic sequence is f(n) = (the first term) + (common difference)*(n-1), you just plug in what was given to you in the problem to that equation. The first term is -20 and the common difference is +15 since the the increase from one term to the next is 15. Doing so produces the equation f(n) = -20 + 15(n-1), which is choice B.
Answer:
Yes, it is a solution.
Step-by-step explanation:
Since t ≥ 12 means that <em>t</em> needs to be equal to or greater than 12, <em>t = 12</em> works as a solution because it is equal to 12.
