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In the following exercises, simplify.

Rationalize a One Term Denominator

In the following exercises, rationalize the denominator.

Rationalize a Two Term Denominator

In the following exercises, rationalize the denominator.

4 4 + 27

16 12 3 −11

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2 p + 3

2 p 6 p 3

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Section 9.6 Solve Equations with Square Roots

Solve Radical Equations

In the following exercises, solve the equation.

u 4 + 4 = u

no solution

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r 4 r = −10

13

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2 2 x 7 4 = 8

43 2

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Use Square Roots in Applications

In the following exercises, solve. Round approximations to one decimal place.

A pallet of sod will cover an area of about 600 square feet. Trinh wants to order a pallet of sod to make a square lawn in his backyard. Use the formula s = A to find the length of each side of his lawn.

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A helicopter dropped a package from a height of 900 feet above a stranded hiker. Use the formula t = h 4 to find how many seconds it took for the package to reach the hiker.

7.5 seconds

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Officer Morales measured the skid marks of one of the cars involved in an accident. The length of the skid marks was 245 feet. Use the formula s = 24 d to find the speed of the car before the brakes were applied.

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Section 9.7 Higher Roots

Simplify Expressions with Higher Roots

In the following exercises, simplify.


64 6
64 3

2 4

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d 9 9
v 8 8

d | v |

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16 x 8 4
64 y 12 6

2 x 2 2 y 2

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128 r 14 7
81 s 24 4

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Use the Product Property to Simplify Expressions with Higher Roots

In the following exercises, simplify.


64 c 8 5
48 d 7 4

2 c 2 c 3 5 2 d 3 d 3 4

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343 q 7 3
192 r 9 6

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−500 3
−16 4

−5 4 3 not a real number

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Use the Quotient Property to Simplify Expressions with Higher Roots

In the following exercises, simplify.

Add and Subtract Higher Roots

In the following exercises, simplify.

4 20 5 2 20 5

2 20 5

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640 c 5 3 −80 c 3 3

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96 t 8 5 + 486 t 4 5

2 t 3 t 3 5 + 3 2 t 4 5

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Section 9.8 Rational Exponents

Simplify Expressions with a 1 n

In the following exercises, write as a radical expression.

In the following exercises, write with a rational exponent.

In the following exercises, simplify.

Simplify Expressions with a m n

In the following exercises, write with a rational exponent.

In the following exercises, simplify.

Use the Laws of Exponents to Simplify Expressions with Rational Exponents

In the following exercises, simplify.

( 16 s 9 4 ) 1 4

2 s 9 16

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z 2 3 · z 1 3 z 5 3

z 2

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Practice test

In the following exercises, simplify.

169 m 4 n 2

13 m 2 | n |

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3 13 + 5 2 + 13

4 13 + 5 2

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( 3 6 y ) ( 2 50 y 3 )

180 y 2 3

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( 1 2 q ) 2

1 4 q + 4 q

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81 x 12 4
64 y 18 6

3 x 3 2 y 3

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In the following exercises, rationalize the denominator.

In the following exercises, solve.

3 2 x 3 20 = 7

42

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In the following exercise, solve.

A helicopter flying at an altitude of 600 feet dropped a package to a lifeboat. Use the formula t = h 4 to find how many seconds it took for the package to reach the hiker. Round your answer to the nearest tenth of a second.

6.1 seconds

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Questions & Answers

if three forces F1.f2 .f3 act at a point on a Cartesian plane in the daigram .....so if the question says write down the x and y components ..... I really don't understand
Syamthanda Reply
hey , can you please explain oxidation reaction & redox ?
Boitumelo Reply
hey , can you please explain oxidation reaction and redox ?
Boitumelo
for grade 12 or grade 11?
Sibulele
the value of V1 and V2
Tumelo Reply
advantages of electrons in a circuit
Rethabile Reply
we're do you find electromagnetism past papers
Ntombifuthi
what a normal force
Tholulwazi Reply
it is the force or component of the force that the surface exert on an object incontact with it and which acts perpendicular to the surface
Sihle
what is physics?
Petrus Reply
what is the half reaction of Potassium and chlorine
Anna Reply
how to calculate coefficient of static friction
Lisa Reply
how to calculate static friction
Lisa
How to calculate a current
Tumelo
how to calculate the magnitude of horizontal component of the applied force
Mogano
How to calculate force
Monambi
a structure of a thermocouple used to measure inner temperature
Anna Reply
a fixed gas of a mass is held at standard pressure temperature of 15 degrees Celsius .Calculate the temperature of the gas in Celsius if the pressure is changed to 2×10 to the power 4
Amahle Reply
How is energy being used in bonding?
Raymond Reply
what is acceleration
Syamthanda Reply
a rate of change in velocity of an object whith respect to time
Khuthadzo
how can we find the moment of torque of a circular object
Kidist
Acceleration is a rate of change in velocity.
Justice
t =r×f
Khuthadzo
how to calculate tension by substitution
Precious Reply
hi
Shongi
hi
Leago
use fnet method. how many obects are being calculated ?
Khuthadzo
khuthadzo hii
Hulisani
how to calculate acceleration and tension force
Lungile Reply
you use Fnet equals ma , newtoms second law formula
Masego
please help me with vectors in two dimensions
Mulaudzi Reply
how to calculate normal force
Mulaudzi
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Source:  OpenStax, Elementary algebra. OpenStax CNX. Jan 18, 2017 Download for free at http://cnx.org/content/col12116/1.2
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