To do this, you need to multiply out the expressions. This is a bit tedious, but remember like FOIL for binomials, for these trinomials you must multiply each term. If you need a step-by-step, I'd be happy to provide it. Let me know.
Once you have simplified the expression, you get

.
But, the problem stipulates that a must equal 1. We can equivalently factor out the negative sign and put it on the denominator with no change to write

.
So, seeing where each coefficient corresponds between the two expressions, you get
a = 1, b = 9, c = –2, and d = 4.
Answer:
3.14
Step-by-step explanation:
the formula for area of a circle is pi×radius^2, the sides of the square is equivalent to the diameter of the circle so therefore since the radius of a circle is half the diameter, the radius is 1 (2/2). so if you put that into the formula then you get pi×1^2 to which the anwser is 3.14 (to 2 dp)
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<h3>a) Box of 10: </h3><h3> up = m ÷ ti </h3><h3> = $4.76 ÷ 10 Cookies</h3><h3> = $0.476 ~ $0.48</h3><h3 /><h3> Box of 25: </h3><h3> up = m ÷ ti </h3><h3> = $10 ÷ 25 Cookies</h3><h3> = $0.4</h3><h3 /><h3>b) Box of 10 - Box of 25</h3><h3> = $0.48 - $0.4</h3><h3> = $0.08</h3><h3 /><h3>THE BOX OF 25 COOKIES IS CHEAPER BY $0.08 PER COOKIE.</h3>
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Answer:
10
Step-by-step explanation:
Square root of 100 is 10