am I right?

Question

1. Simplify radical expression
sqrt 50
5 sqrt ^2***
2 sqrt ^5
5 sqrt ^10
5
2. Simplify the radical expression sqrt 56x^2
28x
2x sqrt 14***
2x sqrt 7
sqrt 14x2

3. Simplify the radical expression.
sqrt 490y^5w^6
2 sqrt 135y^2
2y sqrt 135***
27 sqrt 15y^2
27y sqrt 15

4. Simplify the radical expression.
sqrt15y multiplied by 3 sqrt 81y
2 sqrt 135y^2
2y sqrt 135***
27 sqrt 15y^2
27y sqrt 15

5. Simplify the radical expression.
sqrt 20x^13y^5/5xy^7
sqrt 4x^12/y^2
2x^6/y
2 sqrt x^12/y^2
2x^6y***

6. Simplify the radical expression.
sqrt 5+6 sqrt 5
5 sqrt 5
7 sqrt 10***
7 sqrt 5
5 sqrt 10

7. Simplify the radical expression.
5 sqrt 7 + 3 sqrt 175
7 sqrt 182
15 sqrt 14
5 sqrt 175***
15 sqrt 7

8. Simplify the radical expression.
(3+sqrt6)(3-sqrt6)
-27
3
9+6sqrt6
15+6sqrt6***

9. What is the domain function? y=sqrt3x+3
x<=-1
x>1
x>=-1***
x<1

10.Simplify the radical expression by rationalizing the denominator.
3 sqrt 160/sqrt 1350x***
2 sqrt 15x/15x
3 sqrt 160/1359x
4sqrt15x/15x
4/sqrt45x

Answer 1

#1 and #2 are correct

#3
√(490y^5w^6)
= √49√10 (y^2√y)(w^3)
= 7√10 y^2w^3 √y <--- not one of the choices

#4
(√(15y))(3√(81y))
= √15√y (27√y)
= 27y√15

#5 can't tell where the square root ends without brackets

#6
1 apple + 6 apples = 7apples
1dollar + 6 dollars = 7 dollars
1√5+ 6√5 = 7√5

#7
5 √7 + 3√175
= 5√7 + 3√25√7
= 5√7+15√7
= 20√7 <--- not one of the choices! but correct answer

#8
(3+sqrt6)(3-sqrt6)
difference of square pattern
= 9 - 6
= 3

#9
y=√3x+3
depends if brackets are needed

the way you typed it, domain is x ≥ 0
if you meant:
y = √(3x+3) , then 3x+3 ≥ 0 ----> x ≥ -1

#10
3√160/√(1350x) ,
= 12√10 / (√10√135√x)
= 12/√(135x) * √(135x)/√(135x)
= 12√(135x)/135x

3 sqrt 160/1359x would have been a correct expression if it had brackets such as:
3√(160/(1359x) ) , but then it would not have been rationalized.
None of the other choices are correct.

You got 2 right out of 10
guessing would have given you (1/4)(10) or 2.5 correct.
You did worse than just plain guessing.

Where did you get these questions??

Answer 2

I noticed I completely switched up choices of some answers due to the fact I had to write all these answers down and it my mind felt cluttered. thanks for the reply though, would you like if I were to rewrite them all or something?

Answer 3

actually nevermind I finished the questions rn my answers are correct thank you

Answer 4

Carl wheezer what’s the answer ? Please :(

Answer 5

@Mario, dude, how are you going to ask him what the answer is two years later? Like bruh.

Answer 6

@Mario 4 years at this point, I wonder where you are now...

Answer 7

simplify the following 1.8f+6-3f=16 2.3x=33

Answer 8

RINGARINGARINGARINGARING

Answer 9

@mrhoolihoolihoolianyma

Roses bitc

Answer 10

the answers are
1B
2B
3B
4D
5B
6C
7D
8B
9C
10C
11A
12D
13A
14B
15A
16C
17A
GOD bless every one and have a nice day at school

Answer 11

I'm sorry, but I have not seen any questions to provide answers to. Please provide me with the questions so I can provide accurate and helpful answers.

Answer 12

i promise that am right ༼ つ ◕_◕ ༽つ

Answer 13

I'm sorry, but without the questions, I cannot confirm whether your answers are correct or not. Please provide me with the questions so I can help you.