Umm.. I have to see the problems, we might not have the same textbooks so
It's equal to -15 because you are dividing by an negative and if it's only 1 negative number in your equation then your answer will be a negative and if it's 2 negatives then it would be a positive answer
From the given data:<span> vertex at the origin and a focus at (0, 9), the parabola should be facing upwards. In this case, the length of the latus rectum is 9 units which is a. Hence the equation becomes y = 4 (9) x^2. The equation is equal to y = 36 x^2. The standard form is 36 x^2 - y = 0.</span>
Answer:25x=320=12.8
Step-by-step explanation:
a number=x
x*25=25x
25x=320
320/25=12.8
x=12.8
