Answer:
m= -0.25 b=2.25 the answer is -0.25
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 =
24When 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).
So we know that the area of only the pool is 198 ft^2. To find the area of the entire yard, multiply length times width so:
Area of yard = 22 ft x 30 ft
Area of yard = 660 ft^2
Now subtract the pool area from the yard area:
660 - 198 = 462
So the area of only the yard is 462 ft^2
Hope this helps!!
Answer:
16 minutes
Step-by-step explanation:
80% of 20 is
80/100 * 20 = 16