You randomly guess the answers to two questions on a multiple-choice test. each question has three choices: a, b, and c.

a. what is the probability that you guess the correct answers to both questions?
$$the probability is

.
question 2
write the probability as a percent. round your answer to the nearest tenth.
the probability is about
%.

Solve the system of equations. y= 2x y= x^2 - 15

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17