Answer:
Step-by-step explanation:
If it is asking for 1.5 standard deviations above the mean, it is 30 +1.5(6)=39
<span>X -1 3 5
y 7 3 1 </span>
avgroc = ( 1 -7) / (5 - -1) = -6/6 = -1
Answer:
ss= 350350 × 0.65065 + 6060 x 0.808 x tt - (0.65065 + 6060/350350 x 0.808) 6060 x tt
Answer:
The answer is B.
Step-by-step explanation:
Answer:
20 ft by 60 ft
Step-by-step explanation:
"What should the dimensions of the garden be to maximize this area?"
If y is the length of the garden, parallel to the stream, and x is the width of the garden, then the amount of fencing is:
120 = 3x + y
And the area is:
A = xy
Use substitution:
A = x (120 − 3x)
A = -3x² + 120x
This is a downward facing parabola. The maximum is at the vertex, which we can find using x = -b/(2a).
x = -120 / (2 · -3)
x = 20
When x = 20, y = 60. So the garden should be 20 ft by 60 ft.
