9 * x = 9x
9 * 5 = 45
9 * 8y = 40y
9x + 45 + 40y
9x + 40y + 45
Answer:
D
Step-by-step explanation:
Any other product in Quadrant IV will be negative also, so Quadrant IV is part of my answer. The points (x, y), with xy < 0, lie in Quadrants II and IV.
<span><span>2.5−<span>4<span>(<span>1.5−10</span>)</span></span></span>+3</span><span>=39.5</span>
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Answer:

Step-by-step explanation:
See attachment
Given
Square:

Circle:


Required: Calculate the area of the shaded region
First, calculate the area of the square:



Next, the area of the circle.





The shaded region has the following area

i.e. the difference between the area of the square and the area of the circle


1/2base x height
Hope this helped