Answer:
5
Step-by-step explanation:
cos 60° = y / 10
y = 10 * 1/2 = 5
45 is b
and there is no picture of 46
![11/15=0.7333](https://tex.z-dn.net/?f=11%2F15%3D0.7333)
![cos^{-1}(0.7333) =42.83342](https://tex.z-dn.net/?f=cos%5E%7B-1%7D%280.7333%29%20%3D42.83342)
![sin(90-47.166572) = 0.7333](https://tex.z-dn.net/?f=sin%2890-47.166572%29%20%3D%200.7333)
first, find the numeric value for 11/15
second to find theta, simply do the <em>inverse</em> cos (which is cos^-1) of the first answer.
now you know theta, just do the sin of 90 - theta and that's it!
since you know whatr cos(theta) is, you just take the inverse cos of that number to get theta and 'reverse' cos, essentially. you are just solving for theta, by reversing the cos function with cos^-1
please mark as brainliest!
Answer:
44
Step-by-step explanation
4c + d
this is an expression and since they provided c and d it is easy to solve
c = 9 and d = 8. You need to plug in c and d into the expression to solve the problem.
4(9) + (8)
4 times 9 is 36 so it leaves you with 36 + 8
36 + 8 = 44
I hope this helps but basically the concept is just plugging in the numbers in place of the variables. For future problems plug in the numbers given where the variables are.
95/100 = 0.95 <== if she missed 5 out of 95, then she got 95 out of 100