evaluate the expressions

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July 2nd 2006, 05:12 AM
duckpluckie

evaluate the expressions

14 + 3squared divided by 6
July 2nd 2006, 08:09 AM
topsquark

Quote:

Originally Posted by duckpluckie

14 + 3squared divided by 6

$14+\frac{3^2}{6}$ or $\frac{14+3^2}{6}$ or $\frac{(14+3)^2}{6}$ ?

-Dan
July 2nd 2006, 10:50 AM
duckpluckie

solving the expression

Hi Dan,

My computer doesn't have the symbols for math but it is the second problem you listed. I am also trying to find the square of 1/6 and 2/5

Thank you for your help 14 + 3squared
____________
6
My book says 21 but I can't follow it.
July 2nd 2006, 11:21 AM
Soroban

Hello, duckpluckie!

Quote:

My computer doesn't have the symbols for math

You can still type mathematical expression . . . <b>if</b> you're careful.

Use ^ for exponents . . . and use LOTS of parenthese.

14 + 3^2 . . . means: 14, plus 3² . . . or 14 + 9 = 23

If you want "fourteen plus 3, all squared", write: (14 + 3)^2

"14 plus 3 squared divided 6: 14 + 3²/6 = 14 + (9/6) = 14 + 1½ = 15½

If you want "fourteen plus 3 squared, all divided by 6", write: (14 + 3^2)/6

Quote:

but it is the second problem you listed: $\,\frac{14\,+\,3^2}{6}$

My book says $21$ . .?? . . . no way!
July 2nd 2006, 12:33 PM
Quick

Quote:

Originally Posted by duckpluckie

I am also trying to find the square of 1/6 and 2/5

All you need to do is use a calculator for these ones. Just type in $\sqrt{\;\;\;}$ and then type $\left(1\div6\right)$
July 3rd 2006, 04:43 AM
topsquark

Quote:

Originally Posted by duckpluckie

Hi Dan,

My computer doesn't have the symbols for math but it is the second problem you listed. I am also trying to find the square of 1/6 and 2/5

Thank you for your help 14 + 3squared
____________
6
My book says 21 but I can't follow it.

$\frac{14+3^2}{6}=\frac{14+9}{6}=\frac{23}{6}$

Since 23 is prime, this fraction is simplified as far as it can go, so we are done.

-Dan
July 3rd 2006, 06:21 AM
earboth

Quote:

Originally Posted by duckpluckie

Hi Dan,

My computer doesn't have the symbols for math but it is the second problem you listed. I am also trying to find the square of 1/6 and 2/5

Thank you for your help 14 + 3squared
____________
6
My book says 21 but I can't follow it.

Hi, duckpluckie,

if your book says that the result is 21 then there is a typo:

$\frac{14\cdot 3^2}{6}=\frac{14 \cdot 9}{6}=14\cdot\frac{3}{2}=21$

Bye

EB