Answer:
780 times
Step-by-step explanation:
13×60 = 780
You would multiply the amount of flaps per second by how many seconds you need to solve for.
Hope this helps :)
Answer: 432 inches
Step-by-step explanation: 12 x 36 = 432.
1. Simplify 2.1 * 1.8 to 3.78
-3.5 - 3.78
2. Simplify
-7.28
You can first use the fundamental trigonometric identity:
sin(x) ^2 + cos(x) ^2 = 1
=> cos(x) ^2 = 1 - sin(x) ^2
=> cos(x) ^2 = 1 - (-4/5)^2 = 1 - 16/25 = (25 - 16) / 25 = 9 /25
=> cos (x) = +/ - √ (9/25) = +/- 3/5
Now, analyze the sign.
In the fhird quadrant the cosine is negative, so the answer is cos(x) = - 3/5.
Answer: option C. - 3/5