Step-by-step explanation:
Surface area of a square pyramid is the area of the square base plus the area of the four triangles made from the base and the slant height.
SA = s² + 4(sh/2)
which reduces to:
SA = s² + 2sh
You are told that s = 11 and SA = 319. You can now solve for h:
319 = 11² + 2(11)h
319 = 121 + 22h
198 = 22h
h = 9 ft (answer C)
I hope it's helpful!!
Answer:
Step-by-step explanation:
In the original question as shown in the attached picture, there is a compound interest table.
According to the table, Amount of $1.00 at 5.5% Compounded Daily after 40 days is $1.00604.
Using the formula: Amount = Original Principal x Amount of $1.00,
the amount in account after 40 days = $580 x 1.00604
= $583.5032
= $583.50 rounded to the nearest cent
8 - 7x - 3 = 19
5 - 7x = 19 |subtract 5 from both sides
-7x = 14 |divide both sides by (-7)
x = -2
7.12 more
Step-by-step explanation:
Just add the two number together ❤