pleas someone help m! Sketch a graph that has the following characteristics: crosses the y-axis at (0,4), increases in the interval -12≤x ≤-2, constant in the interval -2 ≤ x ≤2, decreases in the interval 2 ≤x ≤12

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.