(A) The constraint in the profit is calculated by letting p be equal to zero first,
p = 200k - 500 = 0
k = 2.5
If the number of knives sold is less than 3, then there is no profit.
(B) As more knives are sold, the amount of profit becomes higher.
(C) Yes it is
P = 200k - 500
14000 = 200k - 500 ; k = 72.5
To be able to do so, at least 73 knives should be sold.
Answer: <em>Choice B is correct. </em>
Answer:
8.) D
9.) C
7.) That should option 3 im not fs tho
Step-by-step explanation:
First, multiply both sides by 4:
(3x - 4)/4 = 5x + 2
3x - 4 = 4(5x + 2)
3x - 4 = 20x + 8
-12 = 17x
x = -12/17
Hope this helps!
Answer:
80 feet
Step-by-step explanation:
Let x represent the height of the pole.
We have been given that a telephone pole has a wire attached to its top that is anchored to the ground. The distance from the bottom of the pole to the anchor point is 41 feet less than the height of the pole. So the distance between bottom of pole to the anchor point would be .
The wire is to be 9 feet longer than the height of the pole, so length of the wire would be .
We know that length of the wire would be hypotenuse of right triangle, so we can use Pythagoras theorem as:
Since the distance from the bottom of the pole to the anchor point is 41 feet less than the height of the pole, so 20 feet cannot be height of the pole.
Therefore, the height of the pole is 80 feet.