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!!
Q 1. 1,776 and 1,396
q 2. 1,250
q 3. 3.5 million
I would use the quadratic formula for this:
x = -b ± √b² - 4ac over 2a
x = 8 ± √64 - 4(1)(0) over 2(1)
x = 8 ± √64 over 2
x = 8 <span>± 8 over 2 [simplify]
x = 4 </span><span>± 4
x1 = 4 + 4 x2 = 4 - 4
x1 = 8 x2 = 0
Thus, the solutions for x would be 0 and 8.</span>
Answer:
The answer is 25064.
Step-by-step explanation:
<u>There is a mistake in the question so the correct is below:</u>
What is 6 tenths 20 thousandths 4 ones and 50 hundreds.
Now, to solve it:
So, we arrange it in sequence:
20 thousandths 50 hundreds 6 tenths and 4 ones.
Now,
20 thousandths = 20 <u>000</u>
50 hundreds = 50 <u>00</u>
6 tenths = 6 <u>0</u>
4 ones = 4
Thus, 20 thousandths 50 hundreds 6 tenths and 4 ones is :
20,000 + 5000 + 60 + 4.
= 25064.
Therefore, the answer is 25064.
