Heather burned 210 Calories by walking for 45 minutes at the gym. After this, she burned 140 Calories by lifting weight for 30 minutes. Are these rates equivalent? Explain your reasoning.

Polynomial that can be factored as (3x-4)(3x+4)

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.