In a class 30 of students, 22 have a brother and 25 have a sister. There are 2 students who do not have any siblings. What is the probability that a student chosen randomly from the class does not have a sister?

36 and 60 in exponential form

Solve the quadratic equation by completing the square 3x^2 - 6x-4=0

Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0m/s.

Which equation could be used to find the number of days, d, in h hours? A. 24+h=d B. 24h=d C. 24/h=d D. h/24=d

Write the inequality; Eight less than a number is greater than 0 and less than or equal to 1.

Which of the following correctly uses absolute value to show the distance between - 80 and 15?

Complete the equations below. 2.79 : 9 = hundredths : 9 2.79 : 9 = hundredths 2.79 : 9= Brainliest for correct answer

In the parking lot for 8 cars there are 7 trucks. What is the ratio of cars and trucks

A pyrotechnician plans for two fireworks to explode together at the same height in the air. They travel at speeds shown below, (firework A: 340 ft/s, firework B: 320 ft/s) Firework B is launched 0.25 s before Firework A.

The mean age of 5 people in a room is 40 years. A person enters the room. The mean age is now 35. What is the age of the person who entered the room?