Absolute value describes the distance from zero that a number is on the number line, without considering direction. The absolute value of a number is never negative. Take a look at some examples. The distance from 5 to 0 is 5 units.
Answer:
The parametric hypothesis tests that we introduced in Chapter 5 were all based upon the means of the sample and population.
Answer:
y = (-3/5)x + 4
Step-by-step explanation:
Parallel lines have the same slope.
So the slope to the other line would be -3/5 as well.
Slope-intercept form is y = mx + b where m is the slope.
So you substitute the slope in making it y = (-3/5)x+b.
To find b, the y-intercept, you have to plug in the point for y and x in it. So you use the point (5,1) for it. That would get to 1 = (-3/5)5 + b.
To simplify that, it would get to 1 = -3 + b
Then you add 3 on both sides getting to b = 4.
Then you substitute b in, getting y = (-3/5)x + 4.
Hope this helped! If not, please let me know! <3
Answer: 211 CD's must be sold for them to make a profit
Explanation:
Fixed costs and variable costs times x must be set equal to the selling price x in order to find out how many CD's must be sold for a profit.
So :
1470 + 4x = 11x
1470 = 11x - 4x
1470 = 7x
x = 210
∴ 210 Cd's must be sold for them to break even as their revenue will pay for their costs of marketing. This means they have to sell 211 Cd's in order to see a profit.
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