Surface Area of Cylinder = 2πrh.
Radius, r = 7 cm, height = 12 cm.
Surface Area = 2*π*7* 12 = 168π cm²
π ≈ 3.14159
168π = 168*3.14159
Surface Area ≈ 527.79 cm²
Answer:
225pi=a*9
divide both sides by 9
25pi=a
a=pir^2
25pi=pir^2
cancel out pi
25=r^2
so the length of the radius is 5
Answer:
c
Step-by-step explanation:
Answer:
Yes!
Step-by-step explanation:
Lets start with 1/8 - 10 (3/4-3/8x) + 5/8x and try to simplify it:
1/8 - 10 (3/4-3/8x) + 5/8 x = ?
Apply distributive and multiply the inside terms by 10 that is outside the parenthesis:
1/8 - [10*(3/4) - 10(3/8)x] +5/8 x = 1/8 - [30/4 - 30/8 x] +5/8 x
We can now drop the parenthesis:
1/8 - 30/4 + 30/8 x +5/8 x =
Now we put together terms with and without x:
[ 1/8 - 30/4] + [30/8 x + 5/8 x] =
Multiply and divide the 30/4 term by 2 to make an 8 appear in the denominator:
[1/8 - 2*(30)/2*(4)] + [30/8 x + 5/8 x] =
[1/8 - 60/8] + [30/8 x + 5/8 x] = -59/8 + 30/8 x + 5/8 x = -59/8 + 35/8 x
Taking -1/8 as common factor in both terms:
= -1/8 [ -59 - 35 x]
So, we can confirm that:
1/8 - 10 (3/4-3/8x) + 5/8 x = -1/8 [ -59 - 35 x]
Answer: YES, the terms are equivalent!
Answer:
25 pounds
Step-by-step explanation:
Let us assume that initially, 1 pound of whole chicken costs x.
So, initially 20 pounds of whole chicken costs 20x.
Now, the price is reduced by 20%.
That means that 1 pound of whole chicken now costs
Therefore, with a 0.8x amount of money, we can now purchase 1 pound of the whole chicken.
Hence, with a 20x amount of money, we can now purchase pounds of the whole chicken.