X + y = 54
x - y = 12
x = 33
y = 21
33 + 21 = 54
33 - 21 = 12
Hope this helps!
Answer:
<em>A = 144 cm^2</em>
Step-by-step explanation:
a.
The 3D shape shown in the image is a prism, known because it has two parallel faces called bases (the front and back triangles) and the other faces being parallelograms.
b.
To compute the total surface area, we must add the area of the five faces of the shape.
For the bases:

For the upper face

Where z is the hypotenuse of the triangle and w is the depth of the prism.
For the face-down surface

For the right face

The total area is

c.


Answer:
+2
Step-by-step explanation:
The given equation, r = -3 + 5 sin theta, includes a sine term whose max value is +5 and whose min value is -5. We are interested in finding the max value that r can have. To obtain this, take that constant term, -3, and add teh max value of the sine function, which is +5. Net: 5 - 3 = 2.
The max value that r = -3 + 5 sin theta can take on is +2.
This an undefined equation however it can be seen as
0/0=1
OR
0/0=0