Right triangle abc is reflected over ac, then dilated by a scale factor of to form triangle dec. Which statements about the two triangles must be true? select three options. △abc ~ △dec ∠b ≅ ∠e 3bc = 2ec 3de = 2ab 3m∠a = 2m∠d 2m∠a = 3m∠d.

A24-n net force acts on a 8-kg rock.what is the acceleration of the rock?

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories.if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?

Determine if the situation below is a safe practice: julia needs to hang some industrial shelving, so she carefully selects the correct drill bits for the electrical drill before attempting to screw the shelves into the wall.