It’s False........………................
Answer:
18+45m
Step-by-step explanation:
9x2= 18
9x5m= 45m
18+45m
Answer:
![cos\theta=1/3](https://tex.z-dn.net/?f=cos%5Ctheta%3D1%2F3)
Step-by-step explanation:
The point at the terminal side of an acute angle is given by
.
That is,
and
.
Let r be the length of line segment drawn from the origin to the point and is given by the formula:
![r = \sqrt{x^{2} + y^{2}}](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%7Bx%5E%7B2%7D%20%2B%20y%5E%7B2%7D%7D)
Substituting the values of x and y into r,
![r = \sqrt{1^{2} + (2\sqrt{2} )^{2}}](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%7B1%5E%7B2%7D%20%2B%20%282%5Csqrt%7B2%7D%20%29%5E%7B2%7D%7D)
![r = \sqrt{1 + 8}](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%7B1%20%2B%208%7D)
![r = \sqrt{9}](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%7B9%7D)
Thus,
Also,
is given by:
![cos\theta = x/r\\](https://tex.z-dn.net/?f=cos%5Ctheta%20%3D%20x%2Fr%5C%5C)
Substituting values of x and r,
![cos\theta = 1/3\\](https://tex.z-dn.net/?f=cos%5Ctheta%20%3D%201%2F3%5C%5C)
Answer:
10 = 3 and 4
11 = 11 and 12
12 = 8 and 9
13 = 17 and 18
Step-by-step explanation: