When the vertex is at the origin and the directrix is at y = -2.5, the the parabola must be facing upwards and have a general formula of y = 4a x^2. In this case, a is equal to 2.5 that is, y = 4*2.5 x^2 equal to y = 10 x^2
Answer:
16 percent
Step-by-step explanation: 16 percent of 46500 is 7440
Answer:
12.12
Step-by-step explanation:
the formula to find x in this case would be:
______
x=√14^2-7^2
x=√c^2﹣a^2=√14^2﹣7^2≈12.12436
