Exponents in Action
What expression is equivalent to 4-4?
1/4^4 or 1/256
Write 5,200,000 in scientific notation.
5.2*10^6
Which is rational:
-10 vs sqrt 4
-10
Are these equivalent:
3.5 and 3 1/2
Equivalent
What is the square root of 81?
9
Simplify the following expression:
(6x^3)/(3x)
2x^2
Which is larger:
3.1*10^7 or 2.9*10^8
2.9*10^8
Which is irrational:
(sqrt 16)vs(sqrt 30)
sqrt30
sqrt6.25 and 7/2
Are these equivalent:
Not equivalent
A square has an area of 225. What is the side length?
15
Simplify the following expression:
5^2 *5^8
5^10
Earth is around 1.5 x 108 km from the Sun. Uranus is around 3 x 109 km from the Sun. About how many times farther is Uranus?
About 20 times larger
Rational or Irrational:
sqrt(1/3)
Irrational
Are these equivalent:
sqrt(49/4), 7/2, and 3.5
Equivalent
Solve for x: x2=121
11, -11
Simplify the following expression:
(-4x^3y^2)^0
1
The Amazon River is about 6.4 x 103 km. The Colorado River is about 4.46 x 105 km. What's the difference, in scientific notation
4.396 x 105
Rational or Irrational:
sqrt(1/4)
Rational
Write an equivalent expression and show your steps for
(4^2*4^5)/4
42x45=42+5=47
47/4=47-1=46
46=4096
Solve for x: x3=512
8
Simplify the expression:
(3^2)/(3^-5)
3^7
True or False- The number 0.00000087 is written in scientific notation as 8.7 x 10-6
False
Rational or Irrational: 3.14159265...
Irrational
True or False: These are equivalent
(9x^5)/(3x^2) and 3x^3
True
Which is these is an irrational root?
sqrt49, sqrt20, sqrt144, sqrt100
sqrt20