Weight of copper = 1/2w and weight of zinc = 1/2 w
So:-
c = 0.5w*6 + 0.5w*3
c = 3w + 1.5w = 4.5w
this equation is the same as choice A
Answer:
-11
Step-by-step explanation:
Plug in 0 for x and 3/5 for y into the expression
-4(0) + 5(3/5) - 14
Multiply the numbers inside the parentheses
0 + 3 - 14
3 - 14 = -11, which is your answer
Answer:
D) The function is always decreasing
Step-by-step explanation:
As you move along the x axis, the x value approaches: a) negative infinity when x < 0 and b) 0 when x > 0
Answer and Step-by-step explanation:
It depends on the numbers that are inputted for a and b.
If the numbers that are inputted for both a and b are rational, then a + b would be rational.
If the numbers that are inputted for both a and b are irrational, then a + b would be irrational.
If one of the variables is rational and the other is irrational, then a + b would be irrational.
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Part A:
From the central limit theorem, since the number of samples is large enough (up to 30), the mean of the the mean of the average number of moths in 30 traps is
0.6.
Part B:
The standard deviation is given by the population deviation divided by the square root of the sample size.

Part C:
The probability that an approximately normally distributed data with a mean, μ, and the standard deviation, σ, with a sample size of n is greater than a number, x, given by

Thus, given that the mean is 0.6 and the standard deviation is 0.4, the probability that <span>the average number of moths in 30 traps is greater than 0.7</span> given by: