Solve to equation, 2x^2-x-1=0, using the quadratic formula. a. x=-1 or x=-1/2 b. x=-1 or x=2 c. x=1 or x=-1/2 d. x=1 or x=1/2

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?