How do i determine if lines are parallel, perpendicular or neither? -3y=5x-1 6x=10y-12
1 answer:
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For this case we must find the value of "x" of the following expression:
Multiplying by 2 on both sides of the equation:
Subtracting 8x from both sides of the equation:
Adding 16 to both sides:
Dividing between -2 on both sides:
Answer:
Answer:
Between 12.614 years and 16.386 years
Step-by-step explanation:
Given that:
Mean age (μ) = 14.5 years, standard deviation (σ) = 4.6 years, number o sample (n) and the confidence interval (c) = 90% = 0,9
α = 1 -c = 1 -0.9 = 0.1
The z score of is the same as the z score of 0.45 (0.5 - 0.05). This can be gotten from the probability distribution table. Therefore:
The margin of error (e) = =
The interval = μ ± e = 14.5 ± 1.886 = (12.614 ,16.386)