Victory for the ACT Student Text 15e

V ICTORY P RACTICE T EST • 379

 –Š‡ ϐ‹‰—”‡ „‡Ž‘™ l l 1 2 < y 105

and

Ǥ ˆ x 70

ǡ ™Šƒ– ‹• –Š‡ ˜ƒŽ—‡ ‘ˆ r ?

4.

DO YOUR FIGURING HERE.

Ǥ

͵ͷ Ǥ Ͷͷ Ǥ ͺͷ Ǥ ͳͶͷ Ǥ ͳ͹ͷ

g r gr + Ͷ ? Ǥ 2 Ǥ 7 4 Ǥ 5 8 Ǥ 2 Ǥ Ͷ 2 =

ˆ A and A

ǡ ™Šƒ– ‹• –Š‡ ˜ƒŽ—‡ ‘ˆ g

™Š‡ r

1

5.

Š‡ ϐ‹‰—”‡ „‡Ž‘™ ”‡’”‡•‡–• ™Š‹…Š ‘ˆ –Š‡ ˆ‘ŽŽ‘™‹‰ ‡“—ƒ–‹‘•ǫ

6.

Ǥ y x Ǥ y x = − Ǥ y x Ǥ y x Ǥ y x 2

7. Š‹…Š ‘ˆ –Š‡ ˆ‘ŽŽ‘™‹‰ ‹• ƒ ‹ŽŽ—•–”ƒ–‹‘ ‘ˆ –Š‡ †‹•–”‹„—–‹˜‡ ’”‘’‡”–›ǫ Ǥ ( ) 12 4 25) (4) 12(25 : : Ǥ n n n n 7 2 3 7 3 2 + − = − + Ǥ ( ) ( ) ( ) ( ) ( ) ( ) b b 17 5 17 5 2 2 Ǥ ( ) x x x x 2 2 2 + = + Ǥ ab ac ba ca + = +

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