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This isnt hard. the absolutevalue is 32. and the other is 139. all you do is move the negitive sighn.
Answer:
1) 4.237 3) 9.3 5) 6.085 7) 2.3 9) 8.3
Step-by-step explanation:
Look up significant figures. 4 or below let it go 5 or up round up. Any leading or trailing 0 insignificant.
Answer:
Yes, John did write his systems of equations correctly.
Step-by-step explanation:
FedEx charges him a flat rate of $5, so the 5 stands alone in the problem, and $0.50 per pound, so the 0.5 stands with the x because it represents each pound.
UPS doesn't charge him a flat rate so there is no stand-alone number. Since they charge $2 per pound, 2 is with the x, again representing each pound.
To do this you need to put it in function form.
Here's the work
2y-3x = 8
2y-3x = 8
+3x +3x
2y = 3x+8
/2. /2
y = 3/2x + 8
To find perpendicular you multiply the slope the the opposite reciprocal.
y = -2/3x + 8
Then the +8 doesn't really matter now
Slope that is perpendicular is -2/3x
