I don't know algebra 1 sorry but i can do some pre-algebra and calculus
Answer:
-(23/6)π
-(19/6)π
-3π
Step-by-step explanation:
cos2t=cos^2t-sin^2t => cos^2t=1-sin^2t =>cos2t=1-2sin^2t
sint=1-2sin^2t, if x=sint, thenn we have 2x^2+x-1=0
Here x=0.5, x=-1, as x=sint => sint = -1 solutions for -4π to -2π is t=-3π,
sint = 0.5 solutions for -4π to -2π is t= -(23/6)*π, and t = -(19/6)*π
I couldn’t figure that one out as well but I picked 80 square feet
Hello!
If Nia is three years older than half of Jordan's age, we must divide Jordan's age by 2 (to find half of his age).
Jordan is eight years old:
8 divided by 2 equals 4
4 years old is half of Jordan's age. Now, to find Nia's age, we must add 3 to half of Jordan's age (4).
4+3= 7
Nia is 7 years old.
I hope this helps answer your question! Have a great day!
perp to x-3y=2 thru (2,4)
For perpendicular we swap the coefficients on x and y, negating one
3x + y = some constant
We get the constant in the obvious way from the point
3x + y = 3(2) + 4 = 6 + 4 = 10
Answer: 3x + y = 10
