Using cos addition formula:
use x for theta
cos(x+π/6)=cosx*cos(π/6)-sinx*sin(π/6)
sinx=1/4
cosx=√15/4
cos(π/6)=√3/2
sin(π/6)=1/2
cos(x+π/6)=(√15/4*√3/2)-(1/4*1/2)
cos(x+π/6)=(√45/8)-(1/8 )
cos(x+π/6)=(√45-1)/8)
Answer:
76
Step-by-step explanation:
When you solve the equation you will do parentheses first (10+2) which equals 12 then you carry everything down. Next you will multiply 3 x 12 to get 36 then you carry the 20 and 2 down. Next you will multiply 20 by 2 to get 40 and then add 36 + 40 to get 76.
3(10+2) +20 x 2
3(12) +20 x 2
36 + 20 x 2
36 + 40
76 : answer
690 because 86 is rounded up to 90
Answer:
your answer is 30
Step-by-step explanation:
p to r is 15
p to q is 15 beacuse these lines are the same
and 15 plus 15 is 30
Answer:
The slope is 
Step-by-step explanation:
With points A(-2, 1), and B(-4, 2), slope (m) of the line can be calculated using the formula 
,
Where,
Plug in the values into the slope formula:
