15,000 x .05 = 750
750 + 15,000 = 15,750
$15,750 is the total Robert paid for the used car.
The area of a trapezoid = (a + b)/2 x h
Where a and b are the lengths of the parallel sides and h is the perpendicular distance between them.
When (a + b)/2 x 6 = 30
then (a + b)/2 = 5
a + b = 10
Possible values for (a,b) are (4,6) (3,7) (2,8) (1,9) assuming a < b but (7,3) is also valid.
Any positive real value is possible so (4.8, 5.2) and (0.3, 9.7) are valid
In general {a,b both real: 0
The simplest form of the expression is -10 + 8v + 32w
Given the expression
-10(-v+6w)-w-9(-3w-v)
First, we need to expand the given equation using the distributive law:
-10(-v+6w)-w-9(-3w-v)
= -10-v+6w-w-9(-3w)+9(v)
= -10-v+6w-w+27w+9v
Collect the like terms:
= -10 - v +9v + 6w - w+ 27w
= -10 + 8v + 32w
Hence the simplest form of the expression is -10 + 8v + 32w
Learn more here: brainly.com/question/14874506
