Determine the direction of opening, zeroes, axis of symmetry, optimal value, vertex and y-intercept for each of the following quadratic relations.
y = 0.5(x + 2)(x + 10)

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w