3x^2+7x+4
Use the FOIL method, 3x•x +3x•1+4•x+4•1
3x^2+7x+4
The answer would be 5.5 repeating
Answer: D
Step-by-step explanation:
Answer:
320 in.²
Step-by-step explanation:
Let's think of the shape as a normal rectangle with a height of 16 inches. Now all we need is the length. If you look at the right corner, it looks like a piece has been cut out. Since that piece has the same length and height of 8 inches, it is a square. This tells us the missing length of the entire length of the rectangle. Now the length of the rectangle is 16 inches + 8 inches, which is 24 inches.
The total area of the rectangle is 16 × 24, which is 384.
Then from the total area, we just need to subtract the area of the cut-out part. The area of the cut-out square is 8 × 8, which is 64.
384 - 64 = 320
The total surface area of the following complex shape is 320 in.²
Answer:
The answer is "12 inches".
Step-by-step explanation:
Please find the image file of the graph.
We know 
so because the triangle is isosceles.
when 
is called by 
.
We know that 
since E and D are tangent points to a circle.
They have 
since D and F are tangent points only to circle.
Thus, if the perimeter is 32, the following is the result:
Therefore the length of 
