Arc length of a half of a circle with radius of 9
2 answers:
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Answer:
Step-by-step explanation:
The two equations are
......(1)
2y = ......(2)
Equation (2) can be written as:
y =
Now these two equations represent a pair of parallel lines.
The equations of any two parallel line differ only by a constant.
Since, these are equations of parallel lines, they don't intersect. If they don't intersect they cannot have solutions.
⇒ The given system of equations has zero solutions.
Answer:
x = -0.62 and x = 4.29
These values are approximations !
Step-by-step explanation:
You can not use Factoring to solve this equation. Perhaps you did not use the exact notation as in the original question?
Anyway, to solve it, you can still use the ABC formula.
3x²-11x-6=0
a = 3
b =-11
c = -6
x = [11 + √{121 -4(3 *-6)} ]/ 2*3
x = [11 + √{121 -4(-24)} ]/ 6
x = [11 + √{121 + 96} ]/ 6
x = [11 + √{217} ]/ 6
x = 4.29 This is an approximation !
x = [11 - √{121 -4(3 *-6)} ]/ 2*3
x = [11 - √{121 -4(-24)} ]/ 6
x = [11 - √{121 + 96} ]/ 6
x = [11 - √{217} ]/ 6
x = -0.62 This is an approximation !
extra: see the graph.
