Write the number in scientific notation.

0.000 779

a. 7.79 x 10^-4
b. 7.79 x 10^4
c. 7.79 x 10^-3
d. 7.79 x 10^-5

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?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a