Answer:
r = 31.85 in or 100/π
Step-by-step explanation:
area = πd
200 = 3.14d
d = 63.69
r = 1/2d
r = 31.85 in
Answer:
It's A :)
Step-by-step explanation:
ur welcome
Answer:
<h2>C & D are both, and only correct.</h2>
Step-by-step explanation:
a.)
5x + 10 = 12
x = 2/5 NOT 5/2, so this is in fact INCORRECT.
b.)
3x + 10 = 8
x = - 2/3 NOT 2/3, This too is INCORRECT.
c.)
9x + 15 = 36
x = 7/3. This is CORRECT!
d.)
8x + 12 = 24
x = 3/2. This is CORRECT!
Using subtraction, you would take 3,000 and subtract 1968 from it to leave you 1,032. With that number, the answer to your question is "C"
Answer:
Step-by-step explanation:
we know that
The surface area of the square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces
so
![SA=b^{2}+4[\frac{1}{2}bh]](https://tex.z-dn.net/?f=SA%3Db%5E%7B2%7D%2B4%5B%5Cfrac%7B1%7D%7B2%7Dbh%5D)
where
b is the length side of the square base
h is the height of the triangular face
Remember that
Each lateral triangular face is a triangle 45°-90°-45°
so
we have
so
substitute in the formula
![SA=6^{2}+4[\frac{1}{2}(6)(3)]=72\ ft^{2}](https://tex.z-dn.net/?f=SA%3D6%5E%7B2%7D%2B4%5B%5Cfrac%7B1%7D%7B2%7D%286%29%283%29%5D%3D72%5C%20ft%5E%7B2%7D)
