Answer:
S.A = 483.87mm²
Step-by-step explanation:
Given parameters:
radius of the cylinder(r) = 7mm
height(h) = 4 mm
unknown is the surface area of the cylinder which is S.A
Solution
The surface area of a body is the total area covered by the outermost part of such a body. A cylinder has top and bottom circles with a trunk.
The surface Area of cylinder is given as = 2πrh + 2πr²
Now we slot in the appropriate parameters:
S.A = (2 x π x 7 x 4 ) + (2 x π x 7²)
S.A = (175.95 + 307.92)mm²
S.A = 483.87mm²
The length of the sides of any right triangle are always less than the length of the hypotenuse. The sine and cosine functions find the ratio between a side and the hypotenuse, so it's always less than 1.
Answer:Exact Form:
4
√
5
Step-by-step explanation:
After 14 years, the investment will be worth $ 2,306.72.
Given that an investment has a $ 1000 principal, 6% annual interest, 6 interest periods and 14 years of investment, to determine, after 14 years, how much the investment will be worth, the following calculation must be performed:
- 1000 x (1 + 0.06 / 6) ^ 14x6 = X
- 1000 x 1.01 ^ 84 = X
- 1000 x 2.3067 = X
- 2,306.72 = X
Therefore, after 14 years, the investment will be worth $ 2,306.72.
Learn more about maths in brainly.com/question/15603792