Aquarterback throws a football toward a receiver with
aninitial speed of 20 m/s at an angle of 30deg. above
thehorizontal. at at hat instant the receiver is 20m from
thequarterback. in what direction and with what constant
speedshould the receiver run in order to cath the football at the
levelit was thrown?

How can you construct perpendicular lines and prove theorems about perpendicular lines

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.