9514 1404 393
Answer:
increasing 7/24 ft per week
Step-by-step explanation:
An expression for the length of the base can be written from the Pythagorean theorem relation between the sides of the triangle.
If the height is 7-x, where x is the number of weeks after the height is 7 feet, then the base length is ...
b = √(25^2 -(7-x)^2) = √(625 -(49 -14x +x^2)) = √(-x^2 +14x +576)
Then the rate of change of b with respect to x is ...
b' = (-2x +14)/(2√(-x^2 +14x +576))
When x=0, the rate of change of the base is ...
b' = 14/(2√576) = 7/24
The base is increasing 7/24 ft per week when the height is 7 ft.
Answer/Step-by-step explanation:
What we already know:
Pizza slices $2.75 - Ice cream cones $2.25 - Tacos $1.75
Total Items sold - 121 / Total amount of money - $260.75/ <u>$87.50 made from selling Tacos</u>
<u>____________________________________</u>
Tacos - 87.5 ÷ 1.75 = 50 Tacos sold -- 121 - 50 = 71 items
& 260.75 - 87.5 = 173.25 left
____________________________________
You can't sell half an Ice-Cream
Ice Cream - 71 - 1 = 70 -- 70 ÷ 2 = 35 -- 35 × 2.25 =
<h3>
$78.75 made from Ice-cream cones</h3><h3>
35 Ice- cream cones sold</h3><h3>
**************************************************</h3>
Pizza slices - 71 - 70 = 1 -- 1 + 35 =
<u>36 Pizza slices sold</u>
36 × 2.75 =
<u>99 dollars made off of Pizza slices</u>
____________________________________
**I dont know if this is correct**
Answer:
Answer is C
Step-by-step explanation:
