Rationalize numerator. ((sqrt7)-3/4)(sqrt7+3/sqrt7+3) I got

Rationalize numerator.((sqrt7)-3/4)(sqrt7+3/sqrt7+3) I got that the answer is 7-9/4sqrt7+12= -2/4sqrt7+12
1. 1 answer
2. asked by Stephen
3. 402 views
Simplify each expression.1)(sqrt7 + 5)(sqrt7 -6) My answer is sqrt 7 - 30 Am I correct?
1. 1 answer
2. asked by Hannah
3. 403 views
simplify: 6sqrt7-sqrt7A. 6 sqrt7 B. 5 sqrt 7 C. 5 D. 6 Simplify: 2sqrt12+ sqrt3 A.5sqrt3 B. 3sqrt3 C. 2sqrt15 D. 3sqrt15 Need
1. 2 answers
2. asked by ciara
3. 726 views
I need help in multiplying two square roots. (5*sqrt7-10*sqrt2)(4*sqrt7+8*sqrt2)=
1. 1 answer
2. asked by Heather
3. 484 views
Cos(-Θ) = Sqrt2/3SinΘ<0 What is the value of sin Θ? A. Sqrt7/3 B.-sqrt7/3 C.sqrt14/7 D.-sqrt14/2 I think it's C
1. 1 answer
2. asked by Ashley
3. 407 views
-3x^2+12y^=84What are the domain and range My answer domain: all real numbers range: y (less than -) -sqrt7 or sqrt7
1. 2 answers
2. asked by Steve
3. 1,046 views
Rationalize the denominator of 2sqrt7/x+sqrt7I need steps to do this. Been a while since high school. Thanks
1. 1 answer
2. asked by dylan
3. 433 views
rationalize the denominator7/(sqrt7)-(sqrt3) What is being asked in the problem and what does that mean? What plan am I going to
1. 3 answers
2. asked by LostCoward
3. 76 views
If csc(x) =1/sqrt7 then sec(x) equals(A)p7/7 (B) 6/7 (C)p6/p7 (D)p7 (E) None of the above.
1. 1 answer
2. asked by lan
3. 413 views
x^2-4x+32=0.would the final answer be 2 +or- 2 sqrt7 ?
1. 4 answers
2. asked by Robin
3. 296 views