Leah takes a 2.3 x 10^4 steps during a long-distance run. Each step covers an average of 780 mm. What total distance did Leah cover during her run? Write your answer in scientific notation.

What is the inverse of the function f(x) = 2x + 1?

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.