Answer:
A) -1
Step-by-step explanation:
Domain is x value and range is y value
So when x = 2, then y = -1
Answer:
A) -1
Answer:
7
Step-by-step explanation:
Answer:
x = 1/3 + (2 i sqrt(5))/3 or x = 1/3 - (2 i sqrt(5))/3
Step-by-step explanation:
Solve for x:
-3 x^2 + 2 x - 7 = 0
Divide both sides by -3:
x^2 - (2 x)/3 + 7/3 = 0
Subtract 7/3 from both sides:
x^2 - (2 x)/3 = -7/3
Add 1/9 to both sides:
x^2 - (2 x)/3 + 1/9 = -20/9
Write the left hand side as a square:
(x - 1/3)^2 = -20/9
Take the square root of both sides:
x - 1/3 = (2 i sqrt(5))/3 or x - 1/3 = -(2 i sqrt(5))/3
Add 1/3 to both sides:
x = 1/3 + (2 i sqrt(5))/3 or x - 1/3 = -(2 i sqrt(5))/3
Add 1/3 to both sides:
Answer: x = 1/3 + (2 i sqrt(5))/3 or x = 1/3 - (2 i sqrt(5))/3
Answer:
(x + 1)/4x² + 4(x + 1)/4x²
Step-by-step explanation:
x+1/4x² + x+1/x²
The above can be simply as follow:
Find the least common multiple (LCM) of 4x² and x². The result is 4x²
Now Divide the LCM by the denominator of each term and multiply the result with the numerator as show below:
(4x² ÷ 4x²) × (x + 1) = x + 1
(4x² ÷ x²) × (x + 1) = 4(x + 1)
x+1/4x² + x+1/x² = [(x + 1) + 4(x + 1)]/ 4x²
= (x + 1)/4x² + 4(x + 1)/4x²
Therefore,
x+1/4x² + x+1/x² = (x + 1)/4x² + 4(x + 1)/4x²
Answer:
45.44/71 - 1 = -0.36 = -36%
36% decrease.