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:
C.
Step-by-step explanation:
Answer:
a²- b²=(a+b)(a-b)
a² + b²=(a+b)²-2ab or (a-b)²+2ab
(a + b)³=a³+3a²b+3ab²+b³ or, a³+b³+3ab(a+b)
Answer:
Y = 4/3
Step-by-step explanation:
Solve for Y:
3 Y = 4
Hint: | Divide both sides by a constant to simplify the equation.
Divide both sides of 3 Y = 4 by 3:
(3 Y)/3 = 4/3
Hint: | Any nonzero number divided by itself is one.
3/3 = 1:
Answer: Y = 4/3
