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forum.virtualchallengemeets.com • View topic - More problems

More problems

What could be so hard. It's a multiple-choice test for Pete's sake.

More problems

Postby Salvadoramerican » Tue Feb 28, 2012 9:01 am

The number 19^301 has blank digits
ans. 385

Triangle ABC has an area of 24 in^2. FInd the lenghth of BC to the nearest in if angle B=35 and angle C=50? ans. 10

The sum of an infinite series is 8 and the sum of the first 2 terms is 6. If the common ratio r is positive, find the value of r?

Can someone clarify this
In what quadrant will A terminate if cosA is less than 0 and tanA is greater than 0?

The sides of a right triangle are integers. If its perimeter is 306 and its area is 1224. find the length of its hypotenuse?
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Re: More problems

Postby Salvadoramerican » Wed Feb 29, 2012 12:52 pm

I Figure the last one its a pythagoream triple (17.144.145)
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It was a pleasure to compete with everyone in math thanks guys
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Re: More problems

Postby nsguy1350 » Wed Feb 29, 2012 7:42 pm

Notice that many trPythagorean triplets are in the form (not all) [unparseable or potentially dangerous latex formula]. Basically, take a number (odd), and the other two parts of the triplet are consecutive numbers that add up to the square of the smaller number.
Other triplets such as (8,15,17) don't work that way.
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