Question

math and graphing tutorial
the area of the shaded quadrilateral is
the area of the quadrilateral corresponds to the between

Explanation:

Step1: Identify the shape of the shaded region

The shaded region is a trapezoid.

Step2: Recall the area formula for a trapezoid

The formula for the area of a trapezoid is $A=\frac{(a + b)h}{2}$, where $a$ and $b$ are the lengths of the parallel - sides and $h$ is the height.
From the graph, the parallel sides of the trapezoid: $a = 3$, $b=7$ (in thousands of dollars per day), and the height $h=(70 - 40)=30$ (days).

Step3: Substitute values into the formula

$A=\frac{(3 + 7)\times30}{2}$
$A=\frac{10\times30}{2}$
$A = 150$ (thousand dollars)

Answer:

150 thousand dollars