Responda se existe ou não um número real que seja A) A raiz quadrada de 64
B) A raiz quadrada de 20
C) A raiz quadrada de - 49
D) A raiz quadrada de - 81
E) A raiz quadrada de 100
F) A raiz quadrada de -32

What is the equation of a line passing through (-6,5) and having a slope of 1/3

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

Which of the following parabolas opens up?