Pattern A follows the rule “subtract 3” and Pattern B follows the rule “subtract 4.” Which ordered pairs are formed from combining a term in Pattern A with its corresponding term in Pattern B? Select all correct answers.

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.