If $1 \cos^2 \theta \cos^4 \theta \cos^6\theta \cdots = 5,$ what is the value of $\cos2\theta$?.

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?

Joanie watched 1 out of three of a movie in the morning