A projectile is shot into the air. The altitude of the projectile after seconds is modeled by the function graphed. Time is measured in seconds and altitude ℎ() is measured in feet. The table models the flight of the projectile.

Which of these statements is true?
A.
ℎ(4) < ℎ(20)
B.
The flight is symmetric about the line = 10.
C.
The projectile will hit the ground at some value of less than 24.
D.
f 0 < < 12, then ℎ(12 − ) = ℎ(12 + ).

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias