Answer: -40 or negative forty
Step-by-step explanation:
To factor both numerator and denominator in this rational expression we are going to substitute

with

; so

and

. This way we can rewrite the expression as follows:

Now we have two much easier to factor expressions of the form

. For the numerator we need to find two numbers whose product is

(30) and its sum

(-11); those numbers are -5 and -6.

and

.
Similarly, for the denominator those numbers are -2 and -5.

and

. Now we can factor both numerator and denominator:

Notice that we have

in both numerator and denominator, so we can cancel those out:

But remember than

, so lets replace that to get back to our original variable:

Last but not least, the denominator of rational expression can't be zero, so the only restriction in the variable is


In this case if x<100 George will be losing money. So he will only earn a profit when he sells more than 100 DVDs. Essentially (x-100) represents his break-even point.
No, the longest chord possible is equal to the diameter...
Answer:
Here's link to the answer:
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Step-by-step explanation:
65. y = −3x + 2.25 67. y = −x + 12 69. y = 2x + 4. 71. ... the same number, then the values in the table come from a linear ... negative then y will decrease as x increases; if m is zero then y .