That's a trapezoid,
![A = \frac 1 2 (b+B)h](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%201%202%20%28b%2BB%29h)
![A = \frac 1 2 (4+12) 4 = 32](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%201%202%20%284%2B12%29%204%20%3D%2032)
Answer: 32
But say we didn't know the formula. We can chop out the 4 by 4 square and we have two 45/45/90 triangles side 4 left over, so two 4 by 4 squares,
A = 2(4)(4) = 32
We can think of this as 12 by 4 rectangle with two 4 by 4 right triangles chopped out:
A = 12(4) - 2(1/2)(4)(4) = 48 - 16 = 32
Answer:
1245
Step-by-step explanation:
Distribute the number 3 to each of the numbers in the second set of parentheses. Be careful to remember to add zeros to the number depending on which place holder the number is in.
Demonstration:
3 × 400
3 x 10
3 x 5
After solving each equation, add the total
1200 + 30 + 15 = 1245
19.90 dollars if you need help with steps just ask!
Answer:
1) -![\sqrt{32}](https://tex.z-dn.net/?f=%5Csqrt%7B32%7D)
2) -![\sqrt{108}](https://tex.z-dn.net/?f=%5Csqrt%7B108%7D)
3) -![\sqrt{80}](https://tex.z-dn.net/?f=%5Csqrt%7B80%7D)
4) -![\sqrt{112}](https://tex.z-dn.net/?f=%5Csqrt%7B112%7D)
5) -![\sqrt{40}](https://tex.z-dn.net/?f=%5Csqrt%7B40%7D)
6) -![\sqrt{99}](https://tex.z-dn.net/?f=%5Csqrt%7B99%7D)
7) -![\sqrt{50}](https://tex.z-dn.net/?f=%5Csqrt%7B50%7D)
8) -![\sqrt{150}](https://tex.z-dn.net/?f=%5Csqrt%7B150%7D)
Step-by-step explanation: