A line is drawn on a coordinate grid by the equation y = 4. Which of the following lines would represent a row parallel to it?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)