Answer:
(x, y) = (1, 2)
Step-by-step explanation:
Given the features of graphing calculators these days, obtaining a solution by graphing is one of my favorite methods. The attached graph shows the solution to be (x, y) = (1, 2).
Answer:
So, the probability is P=0.094.
Step-by-step explanation:
We know that in a recent survey, 73% of the community favored building a police substation in their neighborhood.
We get that p=0.73 and q=1-0.73=0.27.
We calculate the probability that exactly 8 of them favor the building of the police substation, if 14 citizens are chosen.
We get that n=14 and k=8.
We calculate the probability:
So, the probability is P=0.094.
Answer:
The bottom one?
Step-by-step explanation:
Just a guess
Answer:
2.25 F
Step-by-step explanation:
I subtracted 3/4 from 3.
Hope this helped.
-Pepsi
Answer:
1. There will be two roots not only one
2.a( +16) =0
Step-by-step explanation:
Simply assume a quadratic equation
Here a,b,c are real independent variables.
As given by student -4i is one of it's root it must satisfy the equation.
-16a +4ib+c=0
b must be zero otherwise either a or c must be imaginary number which is not possible.
So b =0
then, c= 16a
a+c=a+16a
Quadratic is a( +16) =0 here a is any real number.