Alternate angles - happy to help!
Answer:
49
Step-by-step explanation:
To complete the square we use the formula:

So we can plug in 14 for b to find c.

Now this equation can be factored into:

Answer:
cos (theta) = √21/5
Step-by-step explanation:
sin (theta) = 2/5
(sin (theta))^2 = 4/25
4/25 + (cos (theta))^2 = 1
(cos (theta))^2 = 1 - 4/25 = 21/25
cos (theta) = √21/5
Answer:
355.4%
Step-by-step explanation: