Answer:
Step-by-step explanation:
The line has a slope of -1/3. For lines to be perpendicular there product must equal negative 1
m1(m2)=-1
-m/3=-1
m=3
So we know our line has a slope of three so
y=3x+b, we can solve for the y intercept, b, using point (-2,8)
8=3(-2)+b
8=-6+b
b=14, so our line is
y=3x+14
Answer:
E(X ¯)=210,000.
Step-by-step explanation:
A sampling distribution for samples of size n=49 from a population with means μ=210,000 and standard deviation σ=35,000, has the following means anda standard deviation:
If X ¯ is the mean sales price of the sample, it will have a mean value of E(X ¯)=210,000.
Answer:
(3, 0) (7, 0)
Step-by-step explanation:
the parabola intersects the x-axis at these points
Answer:
13/35
Step-by-step explanation:
13 students choose football.
31 students choose tennis.
this leaves 26 students that chose running.
probability of choosing running is 26/70 = 13/35
