Answer:
The length of the focal width of the parabola is 1.
Step-by-step explanation:
Suppose we have a parabola with the following equation:
The centre is at point 
.
The length of the focal width is of |4p|.
In this question:
We want to place in the general format. So
Comparing, we have that 4p = 1. So the length of the focal width of the parabola is 1.
Answer:
<h2>12</h2><h2 />
Step-by-step explanation:
<u>3</u> =<u> x </u>
8 32
8 (x) = 32 (3)
x = <u>32 (3)</u>
8
x = 12
Answer:
hi
Step-by-step explanation:
Option 4th is correct
The solution of the system of equations is, (9, 3)
Step-by-step explanation:
Given the system of equations:
⇒ .....[1]
⇒ .....[2]
Add equation [1] and [2] we have;
Divide both sides by 2 we have;
Substitute x = 9 in [1] we have;
Subtract 9 from both sides we have;
2y = 6
Divide both sides by 2, we have;
y = 3
Therefore, the solution of the system of equations is, (9, 3)
X²=3x+3
x²-3x-3=0. have to get 0 on right first
identify a,b,c. a is 1, b is -3, c is -3
now plug in to the quadratic formula...
x = -b±√(b²-4*a*c) / 2a
x = -(-3) ± √((-3)²-4*1*(-3)) / (2*1)
x= 3 ± √(9- -12) / 2
x=( 3 ± √21) /2
0 1/4 and 0 These are both lower fractions because 0 plus a half..and 0 and 1/4. Sorry I'm not great at explaining
