Which of the following expressions are equivalent? justify your reasoning.

Working over the real numbers, expressions B and D are (almost) equivalent.

They're not quite equivalent when x=0 as the first is undefined, but we'll let that go because we can't argue with the online system.

B and D

B )

x / x^-1 = x^1 = x

D)

x^1/3 * x^1/3 * x^1/3

= x^(1/3 + 1/3+ 1/3)

= x^3/3

= x^1

=x

Answer is B and D are equivalent

b. x- 48 =120

step-by-step explanation:

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq