What is the distance between -172 and -69 Pls it’s on my quiz

What is the value of x in the following equation. -x ^3/2 = -27

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.