Simplify this expression 5xy - x2 + 2xy + 3x2
2 answers:
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Answer:
- not linear
- somewhere between 184 and 186 (maybe)
Step-by-step explanation:
As you show, the weight differences are different for the same week differences, so the table is not linear. A graph (attached) can also show you the table is not linear.
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The highest rate of weight loss shown in the table is 7 lbs in 3 weeks, or 4 2/3 pounds in 2 weeks. The lowest rate of weight loss shown in the table is 5 lbs in 3 weeks, or 3 1/3 pounds in 2 weeks. Based on the rates shown in the table, we might expect the starting weight to be between 3 1/3 and 4 2/3 pounds more than the first table value:
Week 0 weight: between 184 1/3 and 185 2/3 lbs, estimated.
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A "line of best fit" for the data has a y-intercept of about 185 pounds, which is the midpoint between our two estimates above.
Well... hell, let's just convert them all with the same denominator then
hmmm let's see, we have the denominators of 8,11 and 3
so... we'll multiply the 5/8 times (11*3) or 33
and then we'll multiply 7/11 times (8*3) or 24
and then we'll multiply 2/3 times (8 * 11)
notice, we're simply using the other's denominator's product, to multiply the fractions... anyhow... let's check
hmmm let's see, we have the denominators of 8,11 and 3
so... we'll multiply the 5/8 times (11*3) or 33
and then we'll multiply 7/11 times (8*3) or 24
and then we'll multiply 2/3 times (8 * 11)
notice, we're simply using the other's denominator's product, to multiply the fractions... anyhow... let's check