If two lines intersect at a right angle, then they are perpendicular

If the train went 390 miles in 3 hours, What was the speed of the train in miles per hour?

A girl and a boy each randomly grab a piece of candy from a bowl containing 9 pieces of chocolate, 7 fruit chews, 9 lollipops, and 9 peppermints. Find the probability that both events A and B will occur. Give your answer a reduced fraction.

1. The function h is the sum of the functions f (x) = 3x+5 and g (x) = 2x^2 - 6x - 2. Which represents h? A. h (x) = 5x^2 - x - 2 B. h (x) = 2x^2 - 3x + 3 C. h (x) = 2x^2 - 9x + 7 D. h (x) = - 3x + 3

Part 1 : When solving systems of equations, how do you determine what method to use? Part 2 : Choose 1 system of equations from the choices below.

a carpenter cut a triangular piece from a rectangular wooden board as shown. what is the area, in square inches, of the wooden board after the triangle piece was removed

Which pair of ratios is NOT proportional? a. 24/27 and 16/18 c. 6/15 and 8/20 b. 6/9 and 30/45 d. 20/24 and 15/21

12 more than8.2 times a number n

Aziz and tuan collected 3600 bottles for recycling last year. Aziz collected 5 times as many bottles as tuan. How many bottles did tuan collect?

Dr North piegan's practice sees 125 cats in 2010 24.8% of cats were classified as obese compared to 21.6 person in 2011 find the percent decrease in obese cat in one year

Compuneti o problema in baza expresiei numerice: 10,5 * 3 + 25,4 : 2 Va rog, urgent Dau Coroana la cea mai frumoasa problema + 20 puncte