If m∠1 = 3x, m∠3 = 2x + 20 and m∠5 = 30, what is the value of x?

Which of the following represents a perfect square trinomial? Select one: A. x2 - 14x + 49 B. x2 + 14x + 49 C. 4x2 + 28x + 49 D. All of the above

Antoinette has one roll of construction paper that is 120 feet long. How many 5 foot pieces of construction paper can Antoinette make out of one roll?

Are the lines x=3 and y = 5 perpendicular or parallel?

Write a percent into a fraction - 32.5

Andrews dad brought home a group of 25 parts to build boxcars. 4 parts are steering wheels. what fraction of the part are steering wheels. how do you solve this

The sequence below is arithmetic {1,8,27,64}

Angles α and b are the two acute angles in a right triangle. Use the relationship between sine and cosine to find the value of b if b < α. sin (x 2 + 2x) = cos (2x + 3x 2)

Kevin has mowed 40% of the lawn. If he has been mowing for 20 minutes, how long will it take him to mow in a hour?

How to solve - x^2-2x=5?

Part A: Create a system of linear equations with no solution. In two or more complete sentences, explain the specific characteristics that you included in each equation to ensure that the system would not have a solution.