Rational exponents are quite simple really. For instance, 2 to the power of 1/2 is the square root of two. You take the numerator of the fraction and use that as the exponent and take the denominator and use it to root the number. I know that sounds confusing, so I'll give a bunch of examples
2 to the power of 1/3
is the cube root of 2
2 to the power of 2/3
is the cube root of 2 to the power of 2, or the cube root of 4
2 to the power of 3/4
Is the 4th root of 2 to the power of 3, or the fourth root of 8
Hope it helps <3, if you have any questions just comment.
Answer
The first one is 2 hundredths and the second one is 800+60+3. 01 + 004 +0001
Answer:
x = ± 
Step-by-step explanation:
Given
5 - 2x² = - 15 ( subtract 5 from both sides )
- 2x² = - 20 ( divide both sides by - 2 )
x² = 10 ( take the square root of both sides )
x = ±
Answer:
$2.59
Step-by-step explanation:
Let b and m represent the costs of a banana split and a milkshake, respectively. Then the two purchases are ...
b +5m = 16.24
3b +2m = 15.05
Subtracting the second equation from 3 times the first, we have ...
3(b +5m) -(3b +2m) = 3(16.24) -(15.05)
13m = 33.67 . . . . . . simplify
m = 2.59 . . . . . . . . . divide by 13
The cost of a milkshake is $2.59.
