Answer:
1. -100
2. -75
3. -18
Step-by-step explanation:
Type into your calculator (if you haven't already): log 54.
My result: was similar to yours.
Note, however, that we're supposed to round off these results to the nearest thousandths (not thousand).
Your 1.73239 would need to be rounded off to 1.732, with 2 being the nearest thousandths.
facotr -9
add factors
-1+9=8
correct
You can solve <span>9/x-4/y=8 for x or for y but NOT at the same time.
Solving for x: </span><span>9/x-4/y=8 Mult all 3 terms by xy to eliminate the fractions.
9(xy)/x - 4xy/y = 8xy => 9y - 4x = 8xy, or 9y = 4x + 8xy = 4x(1+2y)
then 9y = x [ 4(1+2y) ]
9y
therefore x = ------------
4(1+2y)
Solve for y using a similar approach.
</span>
√32x^10y^n simplies to 4x^5y^3√2y
Then n = 7 because √y^7 = √(y^6 * y) = y^3√y
So √32x^10y^7 = 4x^5y^3√2y
Answer
n = 7
