The vertex of this parabola is at (-4,-1). When the yvalue is 0, the x-value is 2. What is the coefficient of the squared term in the parabola's equation?

A. 6
B. -6
O C.3
D. -3

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling