Numbers

Irrational Numbers

100

why is pi an irrational number 

it is a non-terminating decimal and cannot be turned into a fraction 

200

which number is irrational

.1212121212, .456661455561, .456745674567

.456661455561 

300

True or False

an irrational number cannot be expressed as a fraction

true

400

True or False

3.141592653... is rational 

false

500

What is an irrational number?

Numbers that cannot be turned into a fraction, decimal goes on and on.

Exponents

100

X^-a= what 

1/X^a

200

X⁰= what 

1

300

what do you do with the exponent

(N^a)^b

N^a x b

400

2⁷

128

500

what do you do with the exponents

N^b x N^a = what 

N^b+a

Scientific Notation

100

put this number in scientific notation 

.000000567 

5.67 x 10^-7 

200

put this number in scientific notation

290,900,000

2.909 x 10⁸ 

300

The body of a 150 lb person contains 2.3 x 10^-4 lb of copper. How much copper is contained in the bodies of 1200 such people? 

2.76 x 10^-1 

400

The speed of light is approximately 3 x 10⁸ m/s. How far does light travel in 6 x 10¹ seconds?

1.8 x 10¹⁰ 

500

A computer can perform 4.66 x 10⁸ calculations per second. How many calculations can this computer perform in one minute?

2.796 x 10¹⁰

Equations

100

solve

3(x-1)=2x+9 

x=12

200

solve

2x+2x+2=4x+2 

Infinite solutions

300

solve

2(x-3)+9=5+x-1

x=1

400

Solve 

5x+3-3x=2(x+3)-5 

No solution

500

solve the equation

2(x+10)-17=5+2x-2 

Infinite Solutions

Square and Cube Roots

100

what is the square root of 9

3

200

true or false

the square root of 16 is 8

false it is 4

300

true or false

the cube root of 100 is 30

false it is 4.641588834

400

what is the cube root of 729

9

500

what is the cube root of 64

4