√81 + √32 + √64 + √18
a. √32 + √18 + 17
b. 7√2 + √81 + √64
c. 7√2 + 17
d. 25√2 + 17
2007-12-14 03:34:58 · 8 answers · asked by peachy 1 in Science & Mathematics ➔ Mathematics
9 + 4√2 + 8 + 3√2
7√2 + 17
OPTION c
2007-12-14 03:57:28 · answer #1 · answered by Como 7 · 2⤊ 0⤋
â81 + â32 + â64 + â18
= 9 + â16*2 + 8 + â9*2
= 17 + 4â2 + 3â2
= 17 + 7â2
The answer is
" c) 7â2 + 17"
2007-12-14 12:49:08 · answer #2 · answered by 123 1 · 0⤊ 1⤋
â81 + â32 + â64 + â18
â81 = â9â9 = 3(3) = 9
â32 = â16â2 = 4â2
â64 = â4â16 = 2(4) = 8
â18 = â9â2 = 3â2
Adding
17 + 7â2
2007-12-14 11:43:17 · answer #3 · answered by kindricko 7 · 0⤊ 0⤋
â81 + â32 + â64 + â18
â81 = â(9^2) = 9
â32 = â(2^5) = â(2^2) * â(2^2) * â2 = 2 * 2 * â2 = 4â2
â64 = â(2^6) = (â(2^2))^3 = 2^3 = 8
â18 = â(3^2 * 2) = â(3^2) * â2 = 3â2
9 + 4â2 + 8 + 3â2 = 7â2 + 17 = c
2007-12-14 11:47:05 · answer #4 · answered by battleship potemkin AM 6 · 0⤊ 0⤋
=9+4â2+8+3â2
=4+3(â2)+9+8
=7â2+17
2007-12-14 11:44:13 · answer #5 · answered by Uttam 1 · 0⤊ 0⤋
â81 + â32 + â64 + â18
â(9)^2 + â(4)^2*2 + â(8)^2 + â(3)^2*2
9+4â2+8+3â2
9+8+4â2+3â2
17+7â2
2007-12-14 11:40:15 · answer #6 · answered by Siva 5 · 0⤊ 0⤋
rt 81 + rt32 + rt64 + rt18
= 9 + 4rt2 + 8 + 3rt2
= 17 + 7rt2.
2007-12-14 11:38:47 · answer #7 · answered by Twiggy 7 · 0⤊ 0⤋
sqrt of81+sqrt of 32+sqrt of 64+sqrt of 18=
9+4sqrt of2+8+3 sqrt of 2=
17+7sqrt of 2
c.
2007-12-14 14:07:51 · answer #8 · answered by Dave aka Spider Monkey 7 · 0⤊ 1⤋