Lucas wants to prove that the base angles of any isosceles triangle are congruent. He has drawn ADEF as shown. Which choice shows a segment
that does NOT subdivide ADEF into two congruent triangles?

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f