The cosine of A is (adjacent side)/(hypotenuse) = 55/73. Do the division, then find the angle whose cosine is that number. The whole thing takes maybe 6 or 7 seconds with your calculator. It's choice-B.
Answer:
Addition should be performed last, because of PEMDAS.
Step-by-step explanation:
in pemdas multiply/divide comes before add/subtract so therefore you would multiply 7 x 4 first, even though addition comes before it in the problem.
28 problems.
7/7 - 6/7=1/7
1/7=4 problems
4×7=28
So the Answer is 28 Problems.
~JZ
Hope it helps
