Answer:
C
Step-by-step explanation:
If you fill in x=0, you are left with the y intercept. In the picture you can see it must be larger than y=10. This invalidates answer A and D.
The x-coordinate top of the parabola ax²+bx+c=0 is given by y = -b/2a, so immediately we can see -b has to be positive. This leads you to answer C because -9x implies b=-9, and --9 is positive.
Answer:
Step-by-step explanation:
25, 000 = 5,000 + 600n
So I'm guessing the answer is: any x from -6 to 6; any absolute value > 6 is not meaningful in this case because the x-axis represents the ground level, and no y values can be negative (underground). Range: y values from 0 (ground) up to 36 (an upward measure, in some kind of units). Drone flying upward is y = mx+b; choose m > 0 and b > 0 (e.g. m = 0.5, b = 24)--this will intersect the rainbow twice; you can find those points of intersection by setting the y values of line & parabola =, and solving the resulting quadratic equation by using the quadratic formula. x values of intersection are about -3.60 and 3.35.
Given:
Width = 2 ft
Parallel bases: 4 ft and 6 ft.
The area is (1/2)(Sum of the bases) x Width.
Therefore the area is
A = (1/2)*(4 + 6)*2
= (1/2)*10*2
= 10 ft²
Answer: 10 ft²
The answer is 51. This is because if you 15 is added then you multiply by the 10