1. Use the FOIL (first, outside, inside, last) method:
F: x*x=x^2
O: x*-2=-2x
I: 3*x=3x
L: 3*-2=-6
x^2-2x+3x-6
<em>*Combine like terms*</em>
x^2+x-6
2. Look for the greatest common factor (GCF) of 15 and 5. It is 5 (15/5=3 and 5/5=1)
5(3x+1)
3. You want to find two numbers whose product is 6 and whose sum is -5. -3 and -2 complete these requirements.
(x-3)(x-2)
4. Solve for x:
<em>*Add x to both sides*</em>
y+x=ab
<em>*Subtract y from both sides*</em>
x=ab-y
8. Plug in 0.5 for x and solve:
10-8(0.5)
10-4
6
10. <em>*Multiply both sides by 5*</em>
2x-3=20
<em>*Add 3 to both sides*</em>
2x=23
<em>*Divide both sides by 2*</em>
x=23/2
I did what I could. Hope I could help!!
Answer:
254.47
Step-by-step explanation:
A= 3.14 x r²
A = 3.14 x 9
A = 254.47
Hope this helps
If the weight of wrestlers on the team varies by 74 pounds, the best way to measure this would be the range.
The range indicates how much difference there is between the maximum and the minimum values, thus making it perfectly suited for finding the variance between the weights of wrestlers.
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The mode of a set is the most commonly occurring number in that set, so this would be the best way to find the most commonly occurring type of candy.
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The mean is the average of a data set, so this could verify that this price was the best indication of the average of the mp3 downloads.
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The median is the middlemost value in a data set, so it would help you in this instance because it would allow you to see where the halfway point was in the ages of PE participants.
Hope this helps!
