Question

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

Answer 1

If \[a^2 = 0.36t^{28}\]then \[a=\]

Answer 2

0.36 * 28

Answer 3

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 \(\sqrt{0.36}=\)

Answer 4

no....... :(

Answer 5

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?

Answer 6

SMALLER

Answer 7

o.6

Answer 8

Right, \[0.6*0.6 = 0.36\]

Now what about the \[\sqrt{t^{28}}\]what does that equal?

Answer 9

sorry, got tied up on a phone call