If x = 4, what is the value of 4x + 3?

What is the smallest integer n such that n\sqrt{2} is greater than 20

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°