In a class of 7, there are 3 students who have done their homework. If the teacher chooses 3 students, what is the probability that none of the three of them have done their homework?

How to use range to calculate standard deviation?

A rectangular prism has a volume of 960 cubic centimeters. What would be the volume of a rectangular pyramid with the same measurements for its base and height?

Determine the sum: (9r3s2t - 4r2s2t2 - 6rs2t3) + (-4r3s2t + 8rs2t3). 3r10s10t10 -r3s2t + 4rs2t3 5r6s4t2 - 4r2s2t2 + 2r2s4t6 5r3s2t - 4r2s2t2 + 2rs2t3

Kenny selected 3/10 of number of seashells in a box. Chloe selected 54/100 of the original number of seashells. What is the total fraction of the original number of seashell that both students selected?

Speed of a cycle 15 km per hour to the speed of scooter 30 km per hour. find the ratio

A compound inequality is graphed and its graph consists of real numbers which open sentence could have resulted in this solution set r > 3 or r < - 2 r <3 or r 3 or r> - 2 r - 2

Simplify 7/3+3 (2/3-1/3) squared

Which expression is equivalent to 2x^2-72

Peter flips a coin 50 times. What is the theoretical probability of flipping a heads?

Chelsea has a beginning balance of $715 in her checking account. She writes two checks for $320 and $640. She has a deposit of $400 and an overdraft fee of $29. What is her new balance? $126 $2104 $1094 $184