algebra help!!!!!!!!!!!!!! dont understand?
1.) divide
s²-5s over s²-11s+30 / s+5 over s-6
A.)s over s+5
B.)s-5 over s²+5c
C.)s-5 over s+5
D.) s+5 over s
2.)simplify the expression
2x-12 over 2x +14
A.) x+7 over x-6
B.) x-6 over 2x +14
C.)x-6 over x+7
D.) 2 (x+6) over (x-7)
3.)simplify the rational expression
x²+4x-5 over 1-x
A.) x²-5
B.)x+5
C.)-x-5
D.) -x+5 over 1-x
5.) find the reciprocal
c²+1
A.) -(c²+1)
B.)1 over c²+1
C.)-c²+1
D.)-1/c²+1
10.) multiply 3/2 . 4/t
A.) 12/t²
B.)12t²
C.)1/12t²
D.) t²/12
14 minutes ago - 3 days left to answ
Update:the question is 3/t times 4/t
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Verified answer
1. s² - 5s / s² - 11s + 30 ÷ s+5 / s-6
s(s-5) / (s-6)(s-5) ÷ (s+5) / (s-6)
s(s-5) / (s-6)(s-5) * (s-6) / (s+5)
The (s-5)'s and the (s-6)'s cancel
s / s+5
2. 2x - 12 / 2x + 14 Factor first
2(x-6) / 2(x+7) The 2's cancel
(x-6) / (x+7) = C
3. x² + 4x - 5 / 1-x
(x+5)(x-1) / -1(x-1) The (x-1)'s cancel
(x+5) / -1 = -x - 5 or C
5. c² + 1
reciprocal = 1/c² + 1 or B
10. I'm not sure what you problem is on this one. Is it 3/2 times 4/t? If it is then none of those solutins are correct. It is 6/t.