What is the value of x? 140 34 56
1 answer:
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A graph of the equation shows the appropriate choice to be
C. 2
_____
If you would rather, you can look at the value of the discriminant. For the equation y = ax²+bx+c, the discriminant (d) is
d = b²-4ac
For your equation, this evaluates to
d = (-8)²-4(2)(5) = 64 -40 = 24
When the discriminant is positive, the function has two real roots (2 x-intercepts). When it is zero, there is only one x-intercept, and when it is negative, there are none (the roots are complex).
C. 2
_____
If you would rather, you can look at the value of the discriminant. For the equation y = ax²+bx+c, the discriminant (d) is
d = b²-4ac
For your equation, this evaluates to
d = (-8)²-4(2)(5) = 64 -40 = 24
When the discriminant is positive, the function has two real roots (2 x-intercepts). When it is zero, there is only one x-intercept, and when it is negative, there are none (the roots are complex).
Answer:
The crossover point for Time
Step-by-step explanation:
From the question we are told that
The total rooms rented for the year is
Time's fixed cost is r = $61,000
Time's variable cost is $12.5 per room
Duffy's Maid Service fixed cost is $25,000
Duffy's Maid Service variable cost is $18.00 per room
The cross over point for Time is mathematically represented as
substituting values