Which number equals the square root of 1, 029.?

7the square root of 21.

14the square root of 3.

3the square root of 21.

21the square root of 3.

Question

Which number equals the square root of 1, 029.?

7the square root of 21.

14the square root of 3.

3the square root of 21.

21the square root of 3.

anonymous · Answer

@jim_thompson5910

jim_thompson5910 · Answer

hint: 1029 = 49*21

anonymous · Answer

Ooh, thanks.. I'll try to go from there and I'll tag you if I get stuck.

jim_thompson5910 · Answer

ok great

anonymous · Answer

I feel like it's the first one or the middle one, or am I wrong?

jim_thompson5910 · Answer

did you factor and break up the square root

anonymous · Answer

Oh, I had a feeling I should factor more. So the ending would be a 3, for sure, right?

jim_thompson5910 · Answer

no

$$\large \sqrt{1029} = \sqrt{49*21}$$

$$\large \sqrt{1029} = \sqrt{49}*\sqrt{21}$$

keep going

anonymous · Answer

Oh, jeez I'm dumb, okay, one sec.

jim_thompson5910 · Answer

you're not dumb

anonymous · Answer

You're right, I'm not. I'm only dumb with Algebra 1. Is the answer the first one?

jim_thompson5910 · Answer

you just need practice, that's all

jim_thompson5910 · Answer

yes $$\large \sqrt{1029} = 7\sqrt{21}$$

anonymous · Answer

YAY I actually got it for once. :) And yeah, these are my last few lessons for this year for ALG1 and then on to Geometry.

jim_thompson5910 · Answer

nice work

jim_thompson5910 · Answer

and glad you got it