Answer: Concave down
Explanation:
An example is shown below. We have the concave down parabola 
marked in red. The trapezoidal sum is in blue. The three trapezoids combine to something just a bit smaller than the true area under the curve from x = -2 to x = 1. Therefore, this trapezoidal sum is an underestimate of the true area under the curve.
Every part of each trapezoid is completely below the red curve. In other words, no part of the blue pieces spill above the parabola.
Answer:
26.4 ounces
Step-by-step explanation:
120% = 1.2 as a decimal
Formula: [Starting Value] + [Starting Value * Percentage as a Decimal] = Percent Increase
12 + (1.2)(12)
12 + 14.4 = 26.4 ounces
The answer c, because they got 9 out of 15 flips being heads. This probability is 0.6. The other answers are not accurate.
