SAT Math XV

Algebra Level 2

For A ≥ − 2 A \ge -2 , ♠ A = A + 2 \spadesuit A=\sqrt{A+2} . Which of the following is the equivalent of ♠ 14 + ♠ 34 \spadesuit14+\spadesuit34 ?

♠ 98 \spadesuit 98 ♠ 16 \spadesuit 16 ♠ 64 \spadesuit 64 ♠ 10 \spadesuit \sqrt{10}

John M. by John M. , 24, USA

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Shohag Hossen
Jun 16, 2015

(icon)A = sqrt ( A + 2 )

So , (icon)14 = sqrt ( 14 + 2 ) = 4

And , (icon)34 = sqrt ( 34 + 2 ) = 6

So , (icon)14 + (icon)34 = 10

Now , (icon)98 = sqrt ( 98 + 2 ) = 10 ( proved )

0 Helpful 0 Interesting 0 Brilliant 0 Confused

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...