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bryanmcmillianjr
06.11.2020 •
Mathematics
Nita finds that the expression ( a+1) to the second power, is sometimes, but not always, greater in value than (a+1) to the third power, when she evaluates both expressions for the same value as 'a'. How do you explain this finding?
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Ответ:
first number = 7
second number = 11
Step-by-step explanation:
A first number is 4 less than a second number
f = s - 4
Four times the first number is 6 more than twice the second
4f = 2s + 6
Substitute for f = s - 4
4(s - 4) = 2s + 6
distribute
4s - 16 = 2s + 6
subtract 2s from both sides
2s - 16 = 6
add 16 to both sides
2s = 22
Divide both sides by 2
s = 11
Substitute for s = 11 in
f = s - 4
f = 11 - 4
f = 7