Answer:
h = 28/πr² or 28/(π((14/π)^⅔))
r = (14/π)^⅓
Explanation:
Given
Let r = radius, h = height of the cylinder
Volume, V =28in³
V = πr²h ----- volume of a cylinder
πr²h = 28 --- make h the subject of formula
h = 28/πr²
Area of the the cylinder is;
A = 2πr² + 2πrh
Substitute 28/πr² for h to get area in terms of radius
A = 2πr² + 2πr(28/πr²)
A = 2πr² + 56/r
Differentiate A with respect to r
dA/dr = 4πr - 56/r²
Set dA/dr to 0 (.....using the least amount of metal)
4πr - 56/r² = 0
(4πr³ - 56)/r² = 0 --- Multiply through by r²
4πr³ - 56 = 0
4πr³ = 56 --- make r the subject of formula
r³ =56/4π
r³ = 14/π
r = (14/π)^⅓
h = 28/πr²
h = 28/(π((14/π)^⅔))
Answer:
E. summarizing
Explanation:
This is an effective listening skill, as Blake asked his manager to improve what he said, and he articulated key ideas, and he took key points from people doubling his work to improve accuracy and become a team.
The player being investigated
so correct option is E. summarizing
Answer:
Class I recall
Explanation:
The Food and Drug Administration (FDA) classifies recalls into three categories:
- Class I: products that may cause serious injuries or even death.
- Class II: products that may cause serious injury or temporary illness.
- Class III: products that are unlikely to cause serious injury or temporary illness, but still violate current FDA regulations.
Answer:
The correct answer is under-employment.
Explanation:
Under-employment is when a resource is not fully utilized, such as when your Economics professor has to sweep the streets as a primary job.
Unemployment mean no job at all. It is situation in which workers are jobless, either because of no availability of jobs or because wokers are not accepting jobs at the going low wage rate. However, under-employment is a situation in which workers get part time jobs or jobs requiring lower education, training and skills than they have. It is quite common in under developed countries.
Answer:
6% on an investment that will return $450,000
Explanation:
