Salute the following by extracting square root. Show you solutions. 1.)x²

2.)m²-100=0

3.)(x-4)²-169=0

4.)t²=81

5.)3h²-147=0

Possible Answers: (Select)

a.)+9 and -9
b.)+4 and -
c.)+13 and -134
d.)+7 and -7
e.)+10 and -10
f.)+8 and -8

Please help me!! I really really need this now

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

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?

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?