Answer:
the only thing you miss is that r=90
Step-by-step explanation:
10^2 equals 100
10 x 10=100
Answer:
They are perpendicular
Step-by-step explanation:
2/7 for the first
-7/2 for the second
Step 1: -3(x+2y=3)
Step 2: -3x-6y=-9
Step 3: 3x cancels out with -3x
Step 4: add 2y and -2y, and add 3 and 5
Step 5: the answer is NO SOLUTION or INFINITE SOLUTION
is the only acute angle whose sin = 1/2. Therefore, cos (
) =