<span>(2n + 2)(2n – 2)
= (2n)^2 -2^2
= 4n^2 - 4
hope it helps</span>
Why are you having us do your homework
Answer:
x = 17, MN = 11
Step-by-step explanation:
Given 2 secants from an external point to a circle, then
The product of the external part and the whole of one secant is equal to the product of the external part and the whole of the other secant.
(5)
7(7 + x) = 8(8 + 13) = 8 × 21 = 168 ( divide both sides by 7 )
7 + x = 24 ( subtract 7 from both sides )
x = 17
(6)
9(9 + 2x - 7) = 10(10 + 8)
9(2x + 2) = 10 × 18 = 180 ( divide both sides by 9 )
2x + 2 = 20 ( subtract 2 from both sides )
2x = 18 ( divide both sides by 2 )
x = 9
Then
MN = 2x - 7 = 2(9) - 7 = 18 - 7 = 11
Answer:
7. $8
8. coupons offer deals upfront, rebates only offer them after purchase, and sales are short times to drive sales
Step-by-step explanation:
7 work. best buy: 60 - 2 = 40 40 x 4 = 160
Gamestop: 60 x 0.3 = 18 42 x 4 = 168
160 - 168 = -8
$8 dollars saved by Best Buy
Answer:
No, because the ratio of pay to hours is not the same for each pair of value.
