In the following function defined by an equation in the form y = a x squared + b x + c, identify the values of a, b, and c. y = 5 x squared + 2 x minus 1

a. a = negative 1, b = 2, c = 5
b. a = negative 2, b = 5, c = 1
c. a = 1, b = 5, c = 2
d. a = 5, b = 2, c = negative 1

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking: