Hey there!
Here is an expression for the number of cards Ryan may have.
150 + d = ?
Hope this helps!
Answer:
Step-by-step explanation:
270 degrees
Answer:
14.15m/s
Step-by-step explanation:
\We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 106
(1500 miles ÷ 106) / (106 seconds ÷ 106)
=14.15 miles/ 1 second
=14.15 miles/second
= 14.15 miles per second
cos (2x) = cos x
2 cos^2 x -1 = cos x using the double angle formula
2 cos ^2 x -cos x -1 =0
factor
(2 cos x+1) ( cos x -1) = 0
using the zero product property
2 cos x+1 =0 cos x -1 =0
2 cos x = -1 cos x =1
cos x = -1/2 cos x=1
taking the arccos of each side
arccos cos x = arccos (-1/2) arccos cos x = arccos 1
x = 120 degrees x=-120 degrees x=0
remember you get 2 values ( 2nd and 3rd quadrant)
these are the principal values
now we need to add 360
x = 120+ 360n x=-120+ 360n x = 0 + 360n where n is an integer
3y^2 and -3/4y^2
5x and 2/3x
12x^2
