Mathematics, 05.08.2019 17:30 kira3039

An open pit mine is being dug in the buffalo ridge mountain range. it will be 550 feet across and 290 feet deep. based on sampling of the area, experts project that the company will be able to retrieve an average of about 0.115 ounces of gold per ton of ore and waste mined. the mine company estimates the total cost of production will be $80 million. (assume the shape of the pit is a perfect cone.) (a) what would be the volume of ore and waste material removed during its mining operation? (b) how many ounces of gold should the company expect to recover from this mine? (assume one ton is equal to 10 cubic feet.)

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 18:30

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Answers: 2

Answer

Mathematics, 21.06.2019 22:30

Factor the polynomial, if possible. if the polynomial cannot be factored, write prime. 9n^3 + 27n^2 – 25n – 75

Answers: 2

Answer

Mathematics, 21.06.2019 23:00

Find the dimensions of the circle. area = 64π in.² r= in.

Answers: 1

Answer

Mathematics, 22.06.2019 00:00

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9

Answers: 1

Answer

You know the right answer?

An open pit mine is being dug in the buffalo ridge mountain range. it will be 550 feet across and 29...

Questions

Social Studies, 15.08.2019 07:10

Martin decides to take a physics class, even though science has never been his strong suit. while he is looking forward to the experience, he is also...

Social Studies, 15.08.2019 07:10

Recall that solomon asch (1951, 1956) asked participants to estimate the lengths of lines. in response to the incorrect answers of others, some partic...

Business, 15.08.2019 07:10

Nonprice competition refers to: a) competition between products of different industries, for example, competition between aluminum and s...

English, 15.08.2019 07:10

Read the excerpt from "a quilt of a country." once these disparate parts were held together by a common enemy, by the fault lines of world wars...

Business, 15.08.2019 07:10

Scarlet inc., a high-end fashion retail store, has been successful over the years due to its consistent focus on quality and customer satisfaction. de...

Mathematics, 15.08.2019 07:10

Atruck driver drove 48 miles in 45 minutes. at this rate, how many miles can the truck driver drive in one hour?...

English, 15.08.2019 07:10

Read the excerpt from "a quilt of a country." the new york of my children is no more balkanized, probably less so, than the philadelphia of my f...

Social Studies, 15.08.2019 07:10

Ted is a manager who effectively motivates his employees to complete their short-term projects in a timely manner without sacrificing quality. ted alw...

Business, 15.08.2019 07:10

One of two office clerks in a small company prepares a sales invoice for $4,300; however, the invoice is incorrectly entered by the bookkeeper in the...

Business, 15.08.2019 07:10

Monopolistic competition is characterized by a: a) few dominant firms and low entry barriers. b) large number of firms and substantial e...

Computers and Technology, 15.08.2019 07:10

Nullpointerexception and arithmeticexception are both derived from which class? a) error b) exception c) runtimeexception d)...

Business, 15.08.2019 07:10

Suppose the market supply curve is upward sloping and market demand is perfectly inelastic. if the market price is held above the equilibrium level, w...

English, 15.08.2019 07:10

Read the excerpt from "a quilt of a country." once these disparate parts were held together by a common enemy, by the fault lines of world wars...

Social Studies, 15.08.2019 07:10

Researchers have concluded that in general, norms are more effective than norms in producing desirable behaviors, such as reducing litter. des...

Social Studies, 15.08.2019 07:10

The is a learned reaction to a particular object or event. a) unconditioned stimulus b) conditioned stimulus c) neutral response

Social Studies, 15.08.2019 07:10

Stan can best be described as a low-need achiever. a fourth grader, he enjoys tormenting his younger sister and playing dodge ball. which activity wou...

Social Studies, 15.08.2019 07:10

Teenagers are often more susceptible to influence attempts from peers than from their parents. this is because peers become more important to teenager...

History, 15.08.2019 07:10

How did the ancient roman farmer communicate with his hog...

Mathematics, 15.08.2019 07:10

Tina has 20 rings. in how many ways can she select a set of 3 rings? a. 1140 b. 1000 c. 950 d. 850...

Mathematics, 15.08.2019 07:10

Adam bought a apples for $1.50 each and b oranges for $2 each. he spent 1.50a+2b dollars. what does 2b represent? solve for a when b =7 and adam spen...

More questions: Mathematics Another questions