number skills
when you have a power of a power with the same base, what do you do to the exponents?
multiply them
0.13%
(4n+2xy2) -9n is equal to what
-5n+2xy2
Write an equation:
if Anthony spends $0.75 on a drink every day and his total at the end of the week is 3.75 how many drinks did he buy?
0.75x=3.75
/0.75 /0.75
x=5
therefore anthony bought 5 drinks
Scientific notation is often used to simplify a number, 34000000 can be simplified into what number?
3.4x107
143% is what number as a decimal
1.43
what is the degree of 5yx5-9y3
6
5x− 6= −2x+ 15 what value makes this equation true
x=3
what is the difference between a rational and irrational number?
a rational number is any whole number, decimal, or fraction that terminates. However a irrational number are non terminating.
A solid dot on a number line indicates what?
value is included
simplify the following:
x2-3xy-9x+87k-8xy+2x2
3x2-11xy-9x+87K
is the equation 2(x-3)+6=7-x+2 true if x equals 3
YES!!!!
What is the difference of (-2)3 and -(2)3
(-2)3 has a base of-2 so its the equivalent of (-2)(-2)(-2) whereas -(2)3 has a base of 2, so its 2x2x2 and you apply the negative sign at the end.
a watering can is %25 off its original value, and Charles purchased it for $15.00 what is the original price of the watering can?
$20.00
-(9x+8x2)+(23x-18y)
-9x-8x2+23x-18y
14x-8x2-18y
a number is tripled and increased by 11 is equal too 125
38N+11=125
N=3