Exponents
2^4*2^3
2^7
X+7=10
x=3
Write 7,200 in scientific notation
7.2x10^3
This is the rule for multiplying powers with the same base
Exponents
10^2*10^3
10^5
9^6/9^2
9^4
2x-5=9
x=7
Write 0.0054 in scientific notation
5.4x10^-3
The form a number must be in for scientific notation
ax10^n where 1 is equal to or greater than a but less than 10
4x+6=22
x=4
(5^2)^3
5^6
3(x-2)=9
x=5
(2x10^4)(3x10^2)
6x10^6
The rule for solving linear equations
Isolate the variable
Write 0.00091 in scientific notation
9.1x10^-4
(x^4y^5)/(x^2y^3)
x^2y^2
x/4+3=7
x=16
(1.2x10^6)/(4x10^2)
3x10^3
The rule for dividing powers with the same base
Subtract the exponents
3^5/3^2
3^3=27
(1/2^3)
(1/2^3)
4(x-1)=2x+10
x=7
A grain of sand has a mass of about 5x10^-4 g About how many grains weigh 1 g?
2,000 Grains
The rule for raising a power to a power
Multiply the exponents
The Sun is 1.5x10^8 km away. Jupiter is about 7.8x10^8 km away. About how many times farther is Jupiter than the Sun?
5.2 times Further away