2 + 3x = 4 + 2x + x^2
x^2 - x + 2 = 0
(x - 0.5)^2 - 0.25 + 2 = 0
(x - 0.5)^2 = -1.75
x - 0.5 = +/- sqrt 1.75 * i
x = 0.5 + 1.32i , 0.5 - 1.32i answer
Answer:
We conclude that a researcher used simple random sample.
Step-by-step explanation:
We know that select a sample of five children from a class of 30, a researcher puts each child’s name on a slip of paper, then shuffles the papers in a hat and randomly picks five names.
We conclude that a researcher used simple random sample.
Because every children has an equal chance of being included in the sample.
Adult weighs 12,500 pounds
it is 5 times heavier
baby = x
adult = 5x ( 5 times the weight of the baby)
12,500 = 5x
divide both sides by 5
x = 12500 / 5
x = 2500
the baby weights 2,500 pounds
For this case we must find
By definition we have to:
We have the following functions:
Now, applying the given definition, we have:
Answer:
