The first thing you should do is to<span> divide the total cost by the unit cost you have got: </span><span>(2y^2 + 6) / (y^2 - 1) </span>
Then just use simple math by plugging in the value y=3
(2*3²+6): (3²-1)= 24:8 = 3 which is the nubmer of the bought notebooks.
<span>In total he spent $24 on notebooks that cost $8.</span>
Answer:
$16.43
Step-by-step explanation:
15.50 x .06 [wonder how i got .06? 6%= .06]
= .93
here's where most people mess up, the usually forget to add the tax to the original cost.
15.50 + .93
= $16.43
Answer:
f''(2) = 8
Step-by-step explanation:
f'(x)= 2x³ - 4x +3
f''(x)= 2*3x - 4= 6x - 4
f''(2)= 6*2 - 4 = 12 - 4 = 8
Diagrammatic representation of the summarized box plot is attached below :
Answer:
Range = 20
Median = 8
Step-by-step explanation:
The median value of a box plot is obtained at the point where a vertical line divides the box into two parts. In the boxplot Given the median of the representation is 8. This is the point where the vertical line divides the box.
The range of the distribution is the difference between the maximum and minimum value :
Minimum (starting point of whisker) = 5
Maximum (end point of whisker) = 25
Range = 25 - 5 = 20