For the first rectangle, the answer is 4n+1.2.
Explanation:
The perimeter is all the side lengths added together. That means, for this rectangle, the perimeter would be n+n+0.6+n+n+0.6, which can be simplified to 4n+1.2.
For the second rectangle, the answer is 6n+0.2.
Explanation:
Again, the perimeter is all the side lengths added together. That means, for this rectangle, the perimeter would be n+0.1+2n+n+0.1+2n, which can be simplified to 6n+0.2.
Answer:
x > 0.5
Step-by-step explanation:
Let the number be x.
6 + 5x > x + 8
4x > 2
x > 0.5
This is a question on inequalities. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)
Answer:
(a) rate of change = 8
(b) Function: y = 8x
(c) Domain: 0 ≤ x ≤ 2
Range: 0 ≤ y ≤ 16
Explanation:
Looks like a inverse variation sequence.
Inverse Variation formula: y = k(x)
Take two points: (1, 8), (2, 16)
Find the value of k which is constant also considered as <u>rate of change</u>.
<u>Insert values</u>:
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Equation: y = 8x
Domain lies in the x axis, Range lies in the y axis.
-9 because if you multiply a positive by a negative it equals a negative.
Answer:
The answer is not complete. But you can use a spreadsheet to construct a simulation model to estimate the average profit per unit of a set of data.
Step-by-step explanation:
To calculate the Expected value of profit, we use:
Selling price - Expected value of different costs
Selling price is Total Cost * Probability
Confidence Interval
A Confidence Interval is a range of values that someone can be sure the true value lies in.
To calculate the confidence interval, we use the formula x ± z * S/√n
Where S is the standard deviation
n is the number of observations
x is the mean
z is the chosen z value