Variable expression for 3x+7

Is a triangle whose side measure 12 ft, 16 ft and 20 ft a right triangle?

An airplane is flying 4,200 feet above the ground at an angle of depression of 7.8°. How far must the plane fly in order to land? Round your answer to the nearest foot. 4,239 feet 30,947 feet 30,661 feet 32,583 feet

What is 11,900,000,000 written scientific notation?

Explain whether or not the triangles shown could lie on the same line

What variable (s) are classified as quantitative variable (s) ?

Gina rented shoes, bowled 3 games, and bought 1 order of nachos. she used a coupon for 1/2 off the price of her bowling games. What was Ginas total cost before tax was added?

Explain what a gradient of 1 in 14 metres means, in terms of vertical and horizontal distances.

36.8% of what number is 28.52?

Find the volume of the pyramid. Round your answer to the nearest hundredth

The median of a set of three numbers is x. there at least three numbers in the set. Write an algebraic expression, in terms of x, to represent the median of the new set of numbers obtained by a. adding 1/8 to every number in the set b.