When x = - pi/12 what is sin -3 pi/12 ? = - sqrt2/2
-2 * -sqrt2/2 +1 = a
Do simialr for 'b' 2* sin 3b + 1 = 1
2 * sin 3b = 0
sin 3b = 0
b = pi/3
300 * 1.20 = 360 miles
3 x^2 + x^2 = 4 x^2
Ingredients in = ingredients out
.50 x + 1.0 (300-x) = .8 ( 300) solve for 'x' the ml of 50% then 100% is 300 - x
Vertex form of parabola
y = a (x+4)^2 + 8 a = 1 in this case
y = x^2 + 8x + 16 + 8 you can finish this I am sure !
One revolution is 2pi Radians in 120000 hours
2pi/120000 R/hr
circumference = pi * 2r
velocity is then pi * 2 * 125 000 / 120000 km/hr
-2/3t -7 <0 and -4t+9 >= 0
t > - 21/2 t <= 9/4
(-21/2, 9/4]
|5a+2| <9
if 5a+2 is positive 5a+2 < 9
a < 7/5
if 5a+2 is negative 5a+2 > -9
a > -11/5
-11/5 < a < 7/5 or ( -11/5 , 7/5)
Arithmetic sequence with 52 terms
sum = 52 ( 2+104)/2 =2756 2756 mod 7 =5
y can be 1 or 2 making x 3 or 1 respectively two pairs of positive integers
