Dr. black is standing 20 feet from the street lamp the lamp is making the shadow 5 feet long he estimates angle of elevation from the tip of the shadow to the top of the streetlamp is 30° how tall is the streetlamp

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?