Last answer for the first question and in not sure about the second one
Hello :) ok so to find AC you would have to use sin. It would be sin70= x/4. To find AC you would have to multiply 4 by sin70 which is 3.758 or to the nearest hundredth would be 3.76. I hope I helped, if you need a more in depth explanation lmk
we know that
Imaginary roots will come in pairs, and so the degree must be even.
therefore
the answer is
options


-3xa=-3a
-3x6=-18
so it is (i think) -3a+-18
Answer:
9 square inches is your answer. √9=3