Monday

January 26, 2015

January 26, 2015

Posted by **Carla** on Tuesday, August 7, 2012 at 9:59am.

a)√4/9 b) √20 c)√121

Why is the number you chose irrational?

2. express in simplest form:

√48-5√27+2√75

3. solve for x: (√x+2)-3=0

- algebra/trig -
**Reiny**, Tuesday, August 7, 2012 at 10:46am1. Which numbers are NOT perfect squares?

2. √48-5√27+2√75

= √16√3 - 5√9√3 + 2√25√3

= 4√3 - 15√3 + 10√3

= -√3

3. I will assume you meant

√(x+2) - 3 = 0

then √(x+2) = 3

square both sides

x+2 = 9

x = 7

since we squared, we MUSYT verify all answers.

if x=7

LS = √(7+2) - 3

= √9 - 3

= 0

= RS

so x = 7

**Answer this Question**

**Related Questions**

Math - Find an equation of the line that bisects the obtuse angles formed by the...

maths - I will be thankfull to you if you help me to solve the below problem: 6...

Algebra - How would i complete these problems? 1. (√6mn)^5 2. ^3√16x...

Algebra Work Check - 1. 5√6 * 1/6√216 5/6 * √1296 5/6 * √...

algebra 1 - alright i have a few questions if its ok..? Simplify: 1. -2√(...

Algebra 2 Answer Check - Simplify by rationalizing each denominator. 1. 2/√...

Algebra - Simplify the expressions and solve the equations 1. 2√3 - √...

THE HOMEWORK IS DUE TODAY- HELP! HELP! PLEASE - There exist irrational numbers a...

please help with math - There exist irrational numbers a and b so that a^b is ...

Math help Ms. Sue please - 1. What is the simplified form of the expression? 7m^...