Which of the following parabolas opens up? a. directrix: y = 2; focus: (−3, −5) b. directrix: y = 2; focus: (3, 5) c. directrix: y = −2; focus: (3, −5) d. directrix: y = −2; focus: (−3, −5)

Which ordered pair is a solution of the equation? y + 5 = 2(2+1) choose 1 answer ® only (5,10 ® only (-1,-5) © both (5, 10) and (-1,-5) 0 neither

(c) a vine called the mile-a-minute weed is known for growing at a very fast rate. it can grow up to 0.5 ft per day. how fast in inches per hour can the mile-a-minute weed grow up to? show your work using the correct conversion factors.

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false