Answer: Option C.
Step-by-step explanation:
A function goes trough the x-axis when f(x) = 0 for some value of x.
For example, when we say that a quadratic function has no real zeros, this means that the determinant is less than zero, so the roots of the equation:
a*x^2 + b*x + c = 0
are complex roots, this means that for the function:
f(x) = y = a*x^2 + b*x + c
there is not a real number x such f(x) = 0
So the correct option is C.
Answer:
Yea i think it is the first one
Step-by-step explanation:
Answer:
£46
Step-by-step explanation:
40 increased by 15 percent is because 15 percent of 40 is 6
adding this increase to it makes it 46 pounds
Answer:
B
Step-by-step explanation:
Answer:
- y = 250 + 150x
- y = 1650 - 200x
Step-by-step explanation:
<u>Equation for Manuel:</u>
<u>Equation for Felicia:</u>
<u>Solving we get:</u>
- 250 + 150x = 1650 - 200x
- 150x + 200x = 1650 - 250
- 350x = 1400
- x = 1400/350
- x = 4 weeks
and
- y = 250 + 150*4 = 250 + 600 = $850
After 4 weeks Manuel and Felicia will have equal amount of money- $850
