Answer:
None of the other answers are correct.
Step-by-step explanation:
- (Given)
- Comparing it with the general form of quadratic equation we find:
- Next, we find the value of the discriminant
- , which means the roots of the given quadratic equation are non-real or imaginary.
- Thus, last option is the correct answer.
Answer:
Step-by-step explanation:
- (1/2) / 4 = x / 5
- 1 / 8 = x / 5
- x = 5 / 8
Y = 1/2x - 3. Slope here is 1/2. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So the perpendicular line will have a slope of -2.
y = mx + b
slope(m) = -2
(1,-1)...x = 1 and y = -1
now we sub and find b, the y int
-1 = -2(1) + b
-1 = -2 + b
-1 + 2 = b
1 = b
so ur perpendicular equation is : y = -2x + 1
Answer:
I am confused by this
Step-by-step explanation:
If the geometric series has first term and common ratio , then its -th partial sum is
Multiply both sides by , then subtract from to eliminate all the middle terms and solve for :
The -th partial sum for the series of reciprocal terms (denoted by ) can be computed similarly:
We're given that , and the sum of the first terms of the series is
and the sum of their reciprocals is
By substitution,
Manipulating the equation gives
so that substituting again yields
and it follows that