An=7n-1 that's the recursive formula
Answer:
5 inches
Step-by-step explanation:
The formula to find the surface area of a cylinder is A = 2πrh + 2πr²
Since we need the height we will need to solve for h
- First we can subtract 2πr² from both sides to get A - 2πr² = 2πrh
- Then we can divide both sides by 2πr to get
Now we can plug in our known values and solve for h
- Here we were given the diameter, d, however this formula is in terms of the radius, r.
- The diameter is equivalent to double the radius, d = 2r
- Therefore the radius is equivalent to half the diameter,
- Plugging in d to solve for r we get
which simplifies to r = 1
The two variables for this equation we have no obtained, A = 12π and r = 1, so we can plug them into our equation to solve for the height
- The height is 5 inches
Just find the base area then multiply it by the height.
so here for the base area we can divide it in 2 parts 6x6 + 2x1
which the total is 38
then multiply 38 by 1, which is the height, so it's 38
Answer:
84,030.00 (Move the decimal point 4 to the right)
Step-by-step explanation:
When multiplying, move the decimal to the right! When dividing, move the decimal to the right!
Since, 10,000 has 4 zeros, we will want to move the decimal point four places to the right!
Hope this helps! :)
Givens
D = 621 miles
r = 51.75
t = ?
Formula
d = r * t
Solve
621 miles = 51.75 * t Divide by 51.75
621 / 51.75 = t
t = 12 hours.
Answer B