Answer:
-1/4d+f
Step-by-step explanation:
First find a common denominator for the like terms 1/2d and -3/4d by multiplying 1/2d by 2/2 to get 2/4d.
Now you have common denominators so 2/4d-3/4d=-1/4d.
For the numbers that have a variable of f, 3f-2f=f.
Therefore the answer is -1/4d+f
Hope this helped!
Answer:
22 and 17
Step-by-step explanation:
Using guess and check, I found this answer. If you wanted to show your work, you could make a table and put both numbers on the left side, add them up, and put the answers on the right side until you got to 39.
r−8s−5 = 1r8 ⋅ s5 = s5r8
r⁻⁸ s⁻⁵
using the rule x⁻ⁿ=1/xⁿ
r⁻⁸ s⁻⁵ = (1/r⁸)(1/s⁵)
Sample Response: Each base must be treated separately. Since each base is raised to a negative exponent, they should both be in the denominator of the fractions. The simplified form of the expression has 1 in the numerator and r to the 8th power times s to the 5th power in the denominator.