Without writing the equation 21x² - 84x + 12y- 24y = -6 in the standard form, state whether the graph of this equation is a parabola, circle, ellipse, or hyperbola.
a. parabola
C. hyperbola
b. ellipse
d. circle

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.