Step 1: Convert
, which is in radians into degrees. To convert it multiply by ![\frac{180}{\pi }](https://tex.z-dn.net/?f=%5Cfrac%7B180%7D%7B%5Cpi%20%7D)
![\frac{5\pi }{12} =\frac{180}{\pi }](https://tex.z-dn.net/?f=%5Cfrac%7B5%5Cpi%20%7D%7B12%7D%20%3D%5Cfrac%7B180%7D%7B%5Cpi%20%7D)
900/12
75
Step 2: 75 degrees isn't on the unit circle but 45 degrees and 30 degrees is. Since 45 + 30 = 75 you can use the cosine of 45 and 30 to find the exact value
cos45 = ![\frac{\sqrt{2} }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B2%7D%20%7D%7B2%7D)
cos30 =![\frac{\sqrt{3} }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B3%7D%20%7D%7B2%7D)
Step 3: Add the cos45 and cos30 to get cos5pi/12
![\frac{\sqrt{2} }{2} +\frac{\sqrt{3} }{2} = \frac{\sqrt{2}+\sqrt{3}}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B2%7D%20%7D%7B2%7D%20%2B%5Cfrac%7B%5Csqrt%7B3%7D%20%7D%7B2%7D%20%3D%20%5Cfrac%7B%5Csqrt%7B2%7D%2B%5Csqrt%7B3%7D%7D%7B2%7D)
Hope this helped!
Use the formula of Axis of symmetry, i.e -b/2a and solve for x which will be your answer.
Therefore x= -16
Answer:
77+24
m²
Step-by-step explanation:
Since it is a square, the side lengths are the same. Multiply the side lengths by each other to find the area.
(4
+3
)(4
+3
)
= 32+12
+12
+45
= 77+24
m²
I believe it is the third choice. (my guess)
Answer:
A) $15
Step-by-step explanation:
let x represent the regular price of the mirror
so, 20% of x = 3
20/100 * x = 3
20x = 300
x = 300/20
x = 15
Hence, the regular price of the mirror is $15