Show:
Logarithms and Exponents
Radicals
Probability
Functions
Factoring
100
What is log4(64) simplified? (hint use change of base or rewrite as a power)
3
100
What is the domain of the sqrt(2x-4)?
domain: all real numbers >= 2.
100
What is the mean median and mode of 5,11,12,15,54,5,19?
mean 17.28 Median 12 Mode 5
100
What is f(x) + g(x) if f(x)=3x+5 and g(x) = 2x-9
5x-4
100
What is x^2-144 factored?
(x-12)(x+12)
200
What is the base when no base is present on a log?
10
200
What is the sqrt(81)?
+ or - 9
200
What is probability defined as?
What you want over the total.
200
What is f(x)*g(x) if f(x)=2x+1 and g(x)= 2x-1?
4x^2 - 1
200
factor (x^3-27)
(x-3)(x^2+3x+9)
300
What is supposed to happen to any power when expanding a log ex logx^3?
the power moves to the front and multiplies the log
300
What are the roots of 2x^2 -18=0 solved by using sqrt?
x=+-3
300
What is the probability of flipping two heads in a row on a coin
.25
300
What is the inverse of f(x) = 2x-12
(x+12)/2 is the inverse.
300
given the factors, foil them to find f(x), (2a-3)(a^2-10a-2)
2 a^3-23 a^2+26 a+6
400
What is 10logx-2log10 after condensing?
log(x^10/100)
400
What is the most important rule about square roots?
They cannot have a negative number in them.
400
A box contains 3 green marbles, 3 yellows, and 2 red. Suppose you select one marble. What is the probability the marble is yellow?
.378
400
What is x if: 3 – x = sqrt(4x)
x=1
400
how many roots does (x+3)(x-2)(x+1) have?
3 real roots
500
What is 5^x=8 as a log?
log5(8)=x
500
What is sqrt(- 72) broken down as?
+-6i sqrt(2)
500
What is the the probability of getting the number zero from the primes list?
0
500
What are the roots to x^2-4x+6
2+- i*sqrt(2)
500
What is the domain of f(x)=(x+12)(x-3)?
All Real #s