Answer:
Y= 12/5
Step-by-step explanation:
-12= -5y
-12/-5=y
A= 1/2 bh that is the formula
2. Divide the numbers of miles to hours and the answer is 66 2/3
3. You also need to divide 13 to 1/2 which the answer is 26
For number 3 I am not sure but that is the answer I think, but for number 2 it is correct and i'm positive
Answer: The sample mean salary of our sampled business majors= 60k .
Step-by-step explanation:
We know that a confidence interval is give by :_
(i)
, where 
= Sample mean
E = margin of error
Given : A 95% confidence interval for the true mean salary of graduating business majors: (50k, 70k).
As compared to (1) , we have
Add (1) and (2) , we get
∴ The sample mean salary of our sampled business majors= 60k .
Consider this option:
1. given: n(A;B;C)=n(-5;-4;-1) and A(-1;-5;-2)=A(x₀;y₀;z₀).
Common view of equation for a plane is Ax+By+Cz+D=0, where A,B,C,D - numbers.
2. from another side using coordinates of A and normal vector it is possible to make up the equation: A(x-x₀)+B(y-y₀)+C(z-z₀)=0 ⇒ -5(x+1)-4(y+5)-(z+2)=0; ⇒ -5x-4y-z-27=0 or 5x+4y+z+27=0.
