I have a math test tomorrow and idk how 2 do sum stuff.
im having trouble with how to:
Evaluate decimal numbers with a positive power
Evaluate decimal numbers with a negative power
Evaluate negative numbers with positive exponents
Evaluate negative numbers with negative exponents
I litterally skipped 2 grades worth of math. I skipped anything I would have learned in 6th and 7th grade math . unfortunately, thats mostly what i need 2 be able 2 do this. I would luv if someone could SIMPLY xplain 2 me how to do these.
Thx so much,
Clueless
by evaluate, i mean figure out the value of the number. such as this prob:
Evaluate: 32 would be 9. thats what our math teachr says so yep and um
im okay with positive numbers with negative powers and stuff but i have no idea about decimals or neg numbrs and neg powers
let me try to make this easier:
power means multiplying by it self
"to the power of" is often replace by ^
ex. 3 "to the power of" 4
3 ^ 4
3 multiplies by it self 4 times = 3x3x3x3 = 81
ok here are some rules you just have to memorize
1. if you have a negative number and you take the power of a odd number you will end up with a negative number
(-3) ^ 3 = (-3)x(-3)x(-3) = -27
2. if you have a negative number and you take the power of a even number you will end up with a positive number
3 ^ 4 = 3x3x3x3x = 81
3. when you take it to the power of a negative number, basicly just treat the minus sign as 1 over "the number"
3 ^ (-2) = 1 over 3^2 = 1/3 x 1/3 = 1/9
Hi well you see if you are haveing problems with this just do what i do talk to the teacher and ask if you can study more befor you take the tes or you can just ask to retake the test me my self have a test to take next class to day and it is all about this stuff i know all of it so im shour i gunna get an A