What is the area of the trapezoid if dc = 4x and ab = 2x and the height is (3x + 1)?
a)
9x2 + 3

b)
9x2 + 3x

c)
18x2 + 6x

d)
24x2 + 8x2

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

What is the value of p in the equation y^ = -4x?