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Since , then we conclude that it will be a goal.

Step-by-step explanation:

Let the trajectory of the ball be represented by , where is the horizontal distance of the ball from origin, in feet, and is the height of the ball above ground, in feet.

If Deshawn does not block Chris's shot, then we should check if shot will be a goal and this condition must be fulfilled:

(1)

If we know that , then the height of the ball at the start of the goal is:

(2)

Since , then we conclude that it will be a goal.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.