A) Which two of these expressions are equivalent to 3 * a?
A) 3°
B) a + a + a
C) За
D) a
b)
Which two of these expressions are equivalent to a 2?
A) 2a
B) 1/2 a
C) 2/a
D) a/2

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.

Paul can type 60 words per minute and jennifer can type 80 words per minutes.how does paul's typing speed compare to jennifer's