Answer:
Step-by-step explanation:
3x/x^ 2 - 6x = 1
3/x - 6x = 1
Multiply each term by x
3 - 6x² = x
6x² + x - 3 = 0
Using quadratic formula
X = [-b ± √(b² - 4ac)]/2a
a = 6, b = 1 and c = -3
X = [-1 ± √(1² - 4(6×-3)]/(2×6)
X = [-1 ± √(1 +72)]/12
X = [-1 ± √73]/12
X = [-1 ± 8.54]/12
X = (-1 + 8.54)/12 or (-1 - 8.54)/12
X = 7.54/12 or -9.54/12
X = 0.63 or - 0.8
The answer is either b or c i dont know hope that helped
Answer: 3 • (x + 2) • (3x + 7)
Step-by-step explanation:
Answer:
a: sample mean: 130.2 pounds
This is not the population mean
Step-by-step explanation:
To find the mean weight of the sample, add up all the values and divide by the total number of values entered. In this case, 10, so we have...
mean: (136 + 99 + 118 + 129 + 125 + 170 + 130 + 128 + 120 + 147)/10 =
1302/10 = 130.2
This is not the population mean. It is the mean of the sample. We would have to know more information to make a conjecture about the population mean.
