Answer:
Step-by-step explanation:
Given
Represent the Length as L and the Width as W.
So, we have the following:
Required
Determine the perimeter
The area of a rectangle is calculated as thus:
Substititute 65 for Area
Substitute 2W + 3 for L
This gives:
Equate to 0
Expand:
Factorize:
or 
But width can't be less than 0.
So:
Recall that:
The perimeter is calculated as thus:
-25/8 minus 5/2
(You just turn them into improper fractions)
Answer:
84x¹²
Step-by-step explanation:
To simplify this expression, we work from left to right:
4x(-3x⁸)(-7x³)
Multiplying the coefficients of the first two, we have 4(-3) = -12. Using the laws of exponents, multiplying powers with the same base means we add the exponents; this gives us x(x⁸) = x¹⁺⁸ = x⁹. This gives us
-12x⁹(-7x³)
Multiplying the coefficients, we have -12(-7) = 84. Using the laws of exponents, for the variable we have x⁹(x³) = x⁹⁺³ = x¹²
This gives us
84x¹²
Answer: 9
Step-by-step explanation: 45 times 2/3 is 30. So, 30 houses were sold last month. 30 times 1/5 is 6. So, 6 houses were sold this month. Add them together. 30+6=36. Subtract that from 45 and you will get 9. There are 9 houses left to be sold.
