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zloy xaker [14]
3 years ago
15

Check/correct my work please! Working with polynomials and stuff.

Mathematics
1 answer:
OLEGan [10]3 years ago
8 0
1. (b+2)(b+2)=b^2 +4b + 4  (FOIL)
2.  FOIL;  x^2 + 6x + 9
3.  correct
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<span>What is the question?

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6 0
3 years ago
Simplify -2(-4x + 5)
Bingel [31]

Answer:

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3 0
3 years ago
A dog sled race is 25 miles long.The equation 5/8 k=25 can be used to estimate the race’s length k in kilometers. Approximately
EastWind [94]
The distance to be covered in the race is 25 miles
average speed of the team is 30 km/h
30 km/m in miles/hour will be:
1 mile=0.621371 km
thus
30 km/h=(30×0.621371) miles/hour
=18.64113 miles/hour
time taken to complete 25 miles will be:
time=distance/speed
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4 0
3 years ago
When a data set is normally distributed, about how much of the data fall within one standard deviation of the mean?
Bezzdna [24]

That would be 68%   answer

6 0
4 years ago
What is the decimal that is equivalent to the expression 3 * 100 + 7 * 10 + 4 * 1 + 6 * 0.01 + 1 * 0.001
barxatty [35]
I believe it is 0.0318
5 0
3 years ago
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