What is the value of n in the equation (2n + 4) + 6 = -9 + 4(2n + 1)? n =
the answer is just 1.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

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 happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?