A boy has 11 coins in dimes and quarters. Their value is $1.70. How many of each does he have? Which of the following equations could be used to solve the problem? a. 0.10x + 0.25(11 - x) = 1.70 b. 25x + 10(11 - x) = 1.70 c. x + (11 - x) = 1.70

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?