The enlargement will be 9 inches in wide.
<u>Step-by-step explanation:</u>
Given that, Wayne has a recipe on a 3-inch by 5-inch index card that he wants to be large to 15 inches long. And, need to find out the how wide will the enlargement be (L). The width and length of index card vary directly. So, this can express as below,
L = k W
Here, given L = 3 and W= 5, so
Now, find L with W = 15 as below,
We'll put y in function of x:
Look the graph of the function in the attached figure. The areas above and below the x-axis are equal. So, we can represent the area bounded by the graph as:
Using that to calculate the area bounded is equal to calculate the double of area above the x-axis.
The line x=z divides the region into two regions of equal area with 0 ≤ x ≤ 2, then:
Your choice of answer D is correct.
_____
When the number of days is zero, the height is 130 inches. This eliminates choices B and C. Evaluating the expression for n=13 gives
... 130 + 13×13 = 130 + 169 = 299 . . . . . corresponding to answer D.
Answer:
-1 (color bow red)
Step-by-step explanation:
first plug x=7
-12/2(7) - 2
-12/14-2
-12/12
-1