True or false? The segment AB is congruent to the segment BC.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Given a normal distribution with µ=20 and σ = 4, what is the probability that x> 24 x< 24 x< 24 or x> 24