You have to distribute the minus sign to the second parenthesis, changing the sign of every term:

The formula to solve for thee area of a square pyramid is [ V = 1/3 * b² * h ]
b² = base area (b = length of one side of the base)
h = height
The only option that as a base length of 12cm. and a height of 14cm. is the first option.
Solve for the volume if needed.
V = 1/3(12²)(14)
V = 1/3(144)(14)
V = 1/3(2,016)
V = 672cm²
Best of Luck!
40/50 is the ratio because the cos formula is adjacent over hypotenuse and you can reduce it to 4/5 as a fraction :)
Answer:
1) 2x^4/343
2) 2x^6/225
3) 2x^12/25
4) 5x^20/16807
Step-by-step explanation:
Hope this helps!
Answer:
5n
Step-by-step explanation:
:)