Questions Answered

Jon__Persson:
I need help with the following problem. Any genius got any ideas?
An observer notices that an aeroplane flies directly overhead. Two minute…
 updated one year ago
 4 replies
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Jon__Persson:
Find, to 2 decimal places, the unknown length in:
 updated one year ago
 4 replies
 1 Medal

Jon__Persson:
I need help with factorizing quadratic trinomials. I have a math test tomorrow, and the math book's explanation doesn't make any sense at al…
 updated one year ago
 10 replies
 1 Medal

Jon__Persson:
Factorize x^2+4x+4
I'm clueless. The formula, a^2+2ab+b^2=(a+b)^2, doesn't help either.
 updated one year ago
 10 replies
 3 Medals

Jon__Persson:
Fully factorize 3y^227
The answer is 3(y+3)(y3), but why? I'm lost.
 updated one year ago
 4 replies
 1 Medal

MauriceLong:
I need help.
Find the missing Values.
…
 updated one year ago
 16 replies
 1 Medal

MauriceLong:
I can someone help me with this. Thanks
The sales taxs rate in New York City is 8.8%. Find the tax charged on the purchase of $249, and t…
 updated one year ago
 15 replies
 1 Medal

Jon__Persson:
Fully factorize 6x^2+12x
 updated one year ago
 11 replies
 2 Medals

babybri_:
What is the "unfinished work" Lincoln mentions in paragraph 3?
But, in a larger sense, we cannot dedicate  we cannot consecrate  we can…
 updated one year ago
 2 replies
 1 Medal

JackieLe:
What are some of the major economic/technological changes that happened in the USA during the Gilded Age that has positively and/or negative…
 updated one year ago
 4 replies
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