## anonymous one year ago Connie is factoring 0.36t^28 – 25 by using the rule a^2 – b^2 = (a + b)(a – b). What will she use for the value of a? (Points : 1) 0.6 0.36 0.6t^14 0.06t^14

1. whpalmer4

If $a^2 = 0.36t^{28}$then $a=$

2. anonymous

0.36 * 28

3. whpalmer4

take the square root of both sides: $\sqrt{a^2} = \sqrt{0.36t^{28}}$$a=\sqrt{0.36*t^{28}}$ $a=\sqrt{0.36}*\sqrt{t^{28}}$do you know what $$\sqrt{0.36}=$$

4. anonymous

no....... :(

5. whpalmer4

it is going to be a number, let's call it $$x$$, where $$x*x = 0.36$$ Is $$x$$ going to be larger or smaller than 1?

6. anonymous

SMALLER

7. anonymous

o.6

8. whpalmer4

Right, $0.6*0.6 = 0.36$ Now what about the $\sqrt{t^{28}}$what does that equal?

9. whpalmer4

sorry, got tied up on a phone call