5.99+15.99+20.99= 42.97
.06 times 42.97= 2.58
2.58+42.97= 45.55
1 ft = 1/3 yards
Area = width x length
w= 15 x 1/3 = 5
l = 20 x 1/3 = 6 2/3
Area = 5 x 6 2/3
33 1/3 square yards
Answer:
$344,000
Step-by-step explanation:
A graphing calculator shows the vertex of the function to be v(10) = 344, corresponding to a value of $344,000.
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Or, you can put the function in vertex form like this ...
v(t) = -3(t^2 -20t) +44
= -3(t^2 -20t +100) +300 +44 . . . . subtract and add 300
v(t) = -3(t -10)^2 +344 . . . . . . . . . . the vertex is (10, 344)
The maximum value of Jon's stock portfolio is $344,000.