Asserting a <em>cause - and - effect </em><em>relation</em><em>ship</em> with highly correlated variables may sometimes be misleading due to the presence of a possible lurking or confounding variable.
Lurking variables cause unintended or spurious association between correlated variables. In the scenario described, a possible confounding variable may be weariness or Fatigue which whereby the mother finds it easier to bottle feed as they have become psychologically disturbed and are prone to be more receptive during these period.
Hence, fatigue is a possible lurking variable in this scenario.
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A= P(1+r)^t, where P= initial value, r= interest rate in %, and t = number of years.
However, if there isa decrease in value, the formula becomes:
A= P(1-r)^t and in our case :
A = 30,000(1- 0.24)^t OR A = 30,000(0.76)^t
Answer:
Step-by-step explanation:
The vertex form of a parabola is given by:
, where V(h,k) is the vertex of the parabola.
The given parabola has vertex (1,1).
This implies that: 
.
Put these values into the vertex form equation.
The y-intercept of this parabola is: (0,-3).
This point lies on the parabola hence it must satisfy its equation.
The equation now becomes
To find the x-intercept, put y=0 into the equation:
Divide through by -4.
Take plus or minus square root of both sides.
or 
or 
Therefore the x-intercepts are:
To the nearest hundredth, we have 
Answer:
D
Step-by-step explanation:
To find the length of the hypotenuse, we use the Pythagoras’ theorem.
It states that the square of the hypotenuse equals the sum of the square of the two other sides.
So here, let’s say the hypotenuse is d.
d^2 = 6^2 + 5.5^2
d^2 = 36 + 30.25
d^2 = 66.25
d = √(66.25)
d = 8.14
