Let's focus on the given equation. The C represents the cost, while the x must be the number of tacos, which is what we're solving for. Since we're given the boundary that C must be 300, then the solution would be:
300 = x² - 40x + 610
x² - 40x + 310 = 0
Apply the quadratic formula where a = 1, b = -40 and c = 310. The roots of x are:
x = 29.49≈30
x = 10.51≈11
<em>Thus, she needs to sell either 30 or 11 tacos.</em>
Answer:
its E 21
Step-by-step explanation:
if your wondering what 7 times 3073 is then your answer is 21511. If your looking for something else I don't understand it then. Hope this helps!
F(-1)= 4*7(-1) = 4*-7 = -28
F(2)= 4*7(2) = 4*14 = 56
To get you started: Look at the bottom 4 white squares. Each square represents an area of 5 sq. meters. Thus, these 4 white squares represent an area of 4(5 sq m) = 20 sq m.
Use the same method to calculate the remaining area. Hint: I count 7 full squares in this "remaining area."