Answer:
It the first one
Step-by-step explanation:
Dy/dx=-2x+15
d2y/dx2=-2
Since the acceleration is a constant negative it has an absolute maximum value for y(x), thus it opens downward, as x decreases without bound as x approaches ±∞
Answer:
203in²
Step-by-step explanation:
split up the shape into three rectangles
5in × 14in = 70
9in × 7in = 63
5in × 14in = 70
70 + 63 + 70 = 203in²
Answer:
length times witdth times height
21. The ratio does add up to 50 so kinda confused