Solve sin^2 2θ=-1-cos^2θ on the interval 0<θ<2pi A. No solution
B. Infinitely many solutions
C. 0, 2pi/3, 4pi/3, 2pi
D. 2pi/3, 4pi/3

rx and sx

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.