Answer:
y = 7
Step-by-step explanation:
1) Substitute X with 1
9 ( 1 ) - 2y = - 5
2) Simplify 19×1 to 9
9 − 2y = −5
3) Subtract 9 from both sides
−2y = −5 − 9
4) Simplify −5−9 to −14
−2y = −14
5) Divide both sides by −2.
y = -14 / -2
6) Two negatives make a positive.
y = 14 / 2
7) Simplify 14 / 2 to 7
y = 7
Answer:
Step-by-step explanation:
We have volume of cone as
and for a cone always r/h = constant
Given that r' = rate of change of radius = -7 inches/sec
(Negative sign because decresing)
V' =- 948 in^3/sec
Radius = 99 inches and volume = 525 inches
Height at this instant =
Let us differentiate the volume equation with respect to t using product rule
Rate of change of height = 0.08514 in/sec
Complete data:
f(x,y) x Y
0.2 50 80
0.3 30 50
0.5 40 60
Answer:
Expected values for x and Y
E(x) = 39, E(Y) = 61
Variance for x and Y
E(x^2) = 1570
E(Y^2) =3830
Step-by-step explanation:
The detailed explanations are contained in the file attached
No it's positive since if you multiply both sides by -1 you will get 5m=20 & m=4
Another method -5m =-20, divide both sides by -5, you will get the same positive m =4
I believe $30 but i am not completely sure :)