Irrational Numbers
Which of the following are irrational?
2/5, 6, 3.1459..., or 17.22
3.1459...
What is 200^2?
400
What is the scientific notation of 9,264,710,000?
9.264710 times 10^9
What does x equal in the equation:
2x-30= 70
50
What is the opposite of cubing?
Cube rooting
Do whole numbers follow under the category of irrational?
No
How many times does 30 go into √3600
2 times
What is (1× 10^2) - (6× 10^2)?
5× 10^-2 or -500
If x=5, simplify 3(x-5)+20x
100
How do you determine the side of a structure when given the perimeter?
Cube root
Can fractions be irrational?
No, all fractions are rational
Does an exponent tell you the number of times the base appears as a factor?
Yes
What is 5,100,894,676 to the power of 0?
1
Solve for x in the equation:
-3x-4(4x-8)=3(-8x-1)
x= -7
What is the square root of 16?
4
Is x irrational in the equation 2(5+5)-4x=-2010
No, 507.5 is rational
Do positive exponents cause cause a fraction?
No, only negative exponents
If a ball is 9 times 10^3 inches wide and another is 4 times 10^6, which one is bigger?
The Second: 4 times 10^6
What is x in the equation:
50x+2(10 times 5)= 100+2 times 25x
No solution
If 2,000^2= 4,000,000 what is the square root of 4,000,000
2,000
Is 200.011 repeating irrational?
Yes
How many times does 50 go into 10^5
1
Solve: 8.2 times 10^-4
0.00082
Solve for x:
2(2 times 40x) = 40x
x= 0.1
Does 8^4=4^8
No