First, some housekeeping:
cos = 12/13 is incomplete; "cos" must have an argument (input).
cos x = 12/13 is fine; here "cos" has the argument (input) x.
Given that cos x = 12/13, find sin x. To do this, we'll need to find the length of the opposite side, given that the hypo length is 13 and the adj. side length is 12.
12^2 + opp^2 = 13^2, or opp^2 = 169-144 = 25.
Then the opp side could be either 5 or -5. Let's assume that it's +5, and that angle x is in the first quadrant.
Then sin x = opp / hyp = 5/13 (answer)
cos 2 is an entirely different kind of problem. Here you are told what the argument (input) to the cosine function is (it is 2, which here means 2 radians).
Using a calculator: cos 2 = -0.416. Note that the angle 2 rad is in QII, which is why the "adjacent side" is negative and also why the cos of 2 is negative.
60.8 is 64% of 95.
Step-by-step explanation:
Given number is;
95
We have to find at what percent, the value is 60.8
Let x be the percent.
Therefore;
x% of 95 = 60.8
Dividing both sides by 0.95
60.8 is 64% of 95.
Keywords: percent, division
Learn more about division at:
#LearnwithBrainly
Answer:
1838265625
Step-by-step explanation:
Scientific calculator
Answer:
I just answered the other question you asked. Why did you ask the same question twice? Also, I said the 1st one
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
It would be a cone with a radius of 4 units rotating around y-axis.
