Ask questions and get helpful answers.

am I right?

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

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
9 answers
  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??

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  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?

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  3. actually nevermind I finished the questions rn my answers are correct thank you

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  4. Carl wheezer what’s the answer ? Please :(

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  5. @Mario, dude, how are you going to ask him what the answer is two years later? Like bruh.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  6. @Mario 4 years at this point, I wonder where you are now...

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  7. simplify the following 1.8f+6-3f=16 2.3x=33

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  8. RINGARINGARINGARINGARING

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  9. @mrhoolihoolihoolianyma

    Roses bitc

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Answer this Question

Similar Questions

  1. Calculus

    The base of a solid is the circle x2 + y2 = 9. Cross sections of the solid perpendicular to the x-axis are equilateral triangles. What is the volume, in cubic units, of the solid? 36 sqrt 3 36 18 sqrt 3 18 The answer isn't 18 sqrt 3 for sure.

  2. Trigonometry/Geometry - Inequalities

    Let a, b, and c be positive real numbers. Prove that sqrt(a^2 - ab + b^2) + sqrt(a^2 - ac + c^2) is greater or equal to sqrt(b^2 + bc + c^2). Under what conditions does equality occur? That is, for what values of a, b, and c are the two sides equal? This

  3. Calculus AB

    For the function f(x) = sqrt(9-x), which is equal to d/dx(f-1( -1 is the inverse)(x)) a) -2x b) sqrt(x) + 9 c) x^2 + 9 d) 2x e) 9-x^2

  4. Geometry

    Since nobody wants to be helpful to give out the Geometry B Semester Exam answers, I will! 1. 180(n-2) 2. AB = CD and BC = AD 3. sometimes 4. Big circle squares, little circle rectangle 5. 135 6. Rectangle 7. 18 and 72 8. 24 9. 10 10. 47 ft 11. OMN OJK SAS

  5. Calculus

    If f(x)=sqrt (x^2-4) and g(x)=3x-2, then the derivative of f(g(x)) at x=3 is A. 7/sqrt 5 B. 14/sqrt 5 C. 18/sqrt 5 D. 15/sqrt 21 E. 30/sqrt 21

  6. Calculus I

    Find the point on the curve y=x^2 closest to point (0,1) Here's what I have: Sqrt {(x-0)^2 + ((x^2)-1)} Sqrt {((x^2) + (x^2)-1} d= sqrt (x^4)-1 y= (x^4)-1 Fprime(x) = 4x^3 Domain = ARN Critical Number x= 0 Any help or comments would help alot. Thanks!

  7. finding c: calc

    let f(x)=square root x. if the rate of change of at x=c is twice its rate of change at x=1, then c=? what???? i don't get get it. to begin with, i took the derivative if that helps which is 1/(2*sqrtx) . f'(x) = 1/(2*sqrtx) is correct f'(x=1) = 1/2 The

  8. Math

    Hey guys! Just asking for some quick help. In ABC , A is a right angle, and B = 45 degrees. What is the length of BC? If the answer is not an integer leave it in simplest radical form. The diagram has 11ft listed as height of the tall side Answers: 11ft 11

  9. Math

    1. In ABC, A is a right angle, and m B=45*. Side CA also has a length of 17ft just to let everyone know. What is the length of BC? If the answer is not an integer, leave it in simplest radical form. The diagram is not shown to scale. A) 54 ft B) 17 sqrt 3

  10. Math

    1. The length of the hypotenuse of a 30-60-90 triangle is 7. Find the perimeter. A) 7/2+21/2 sqrt 3 B) 21+7 sqrt 3 C) 7+21 sqrt 3 D) 21/2 + 7/2 sqrt 3 Could someone please help me, I don't know how to do this. Thank you!

Still need help?

You can ask a new question or browse existing questions.