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David
Questions (1,326)
et X and Y be independent Erlang random variables with common parameter λ and of order m and n, respectively. Is the random
1 answer
1,476 views
The consecutive interarrival times of a certain arrival process are i.i.d. random variables that are equally likely to be 5, 10,
1 answer
870 views
Consider an arrival process whose interarrival times are independent exponential random variables with mean 2 (and consequently
1 answer
4,496 views
The total volume of the Rogers Center is 1.6 x 10^6 m cubed. If the volume of 100 peas is about 55 cm cubed, how many Rogers
3 answers
827 views
Cora's Bike Shop charges $16 per hour to rent a bicycle and a helmet. Dave's Bike Shop charges $11 per hour for the bike and a
3 answers
1,383 views
Marisa is decorating a rectangular prism with a height of 2 ft, width of 1 ft, and length of 3 ft. Each tile costs $0.79. How
2 answers
481 views
A cone is 3 inches high and has a base with a surface area of 7 square inches. What is the volume of the cone?
I thought the
1 answer
720 views
The equation y = 12x describes the amount of money Louis earns, where x is the number of hours he works and y is the amount of
2 answers
1,491 views
if the gym charges a registration fee of $60.00 and a membership fee of $20.00 per month. and the manager waived the
2 answers
767 views
Tom decided to join Platinum Gym because of its new equipment. At the grand opening, the manager announced that 124 people had
0 answers
709 views
Which of the following results of the French and Indian War was a cause of the American Revolutionary War?
Native Americans lost
1 answer
889 views
Which statement describes the relationship between the Russian Orthodox Church and Russian rulers?
1 answer
1,317 views
Show that the function F(x) = integral[x to 3x](1/t)dt is constant on the interval (0, +∞).
1 answer
1,067 views
What is the mass of radon if its density is 9.73 g/l at stp
1 answer
889 views
Find
dy/dt at x = 1 and y = x2 + 3 if dx/dt = 4 I'm not sure how to set up this type of equation. Do you use the pythagorem
1 answer
4,860 views
3. If the banks returned all the money plus interest accumulated from 1938 to 1998 it could be calculated using A=A0 (1.05)^t
1 answer
566 views
2. Growth function P=100 (645)^t/21 where P represents the cane toad population and t represents the time measured in months
0 answers
558 views
1. You gathered data and realized that the temperature drop followed the function T=85 (0.3)^t/2 where T is the temperature in
0 answers
586 views
Sales of a video game released in the year 2000 took off at first, but then steadily slowed as time moved on. The table below
0 answers
923 views
Due to advances in medicine and higher standards of living, life expectancy has been increasing in most developed countries
1 answer
883 views
experiment to demonstrate that expired air contains carbondioxide
1 answer
437 views
Most versions of Pascal allow variable names to consist of eight letters or digits with the requirement that the first character
4 answers
1,206 views
I need someone to show me or help with the steps of this problem:
Bert received a commission of $247.50. If he works for 15%
1 answer
530 views
Prove (A1 + A2 +...+ An)^T = A1^T + A2^T +...+ An^T using Mathimatical Induction.
3 answers
829 views
Explain how to find the reference angle of 1406 degrees. Find the reference angle.
The reference angle is 34 but how do you get
1 answer
5,119 views
How many radians are in a full rotation around a circle or 360 degrees.
Help plz!
2 answers
1,888 views
Community prosecution stresses the need for the prosecutor to reach out to the community, but what does “community” mean? Is
1 answer
818 views
After the middle of the 18th century, what options did Indians still have in responding to the encroachment of settlers? How had
1 answer
635 views
Two number cubes are rolled- one blue and one yellow. Find the probability that the blue cube is less than 3 and the product is
1 answer
2,775 views
A baker is decorating the top of around cake with cherries. The diameter of the cake is 9.5 inches. Each cherry is 0.75 inches
3 answers
2,145 views
on tuesday evening randy spent 18 more minutes working on his math homework than he spent working on his philosophy readings. If
1 answer
869 views
A circular dog bed has a circumference of about 72 inches. What is the diameter in inches of the dog bed to the nearest inch?
1 answer
595 views
Wallace has a $500 budget for a pizza party. Pizza pies cost $12 each. He will also purchase drinks for $30, paper plates for
2 answers
1,400 views
find a vector that makes the same angle with respect to the y-axis that vector i + 3k makes with respect to the x-axis
1 answer
525 views
A man holds a child on his shoulder while watching a football match.how much work is done if the game lasts for 2hours
13 answers
4,036 views
The hydrolysis of ethyl acetate (CH3COOC2H5) by sodium hydroxide yields ethanol (C2H5OH) and sodium acetate (NaO2CCH3) by the
1 answer
1,679 views
A student spent 2 /9 of his pocket money on beverage and 1 /4 on books. What? fraction
10 answers
3,229 views
If one 5 mL dose of Milk of Magnesia contains 400 mg of magnesium
hydroxide, calculate the concentration of magnesium hydroxide
1 answer
654 views
Write the equation of the line that has the following:
Contains point (5,3) and is parallel to y = 6x – 5
1 answer
528 views
Write the equation of the line that has the following
Contains point (3,6) and is perpendicular to y = 2x + 4
1 answer
456 views
Bob has a helicopter and from the launch pad he flies the following path. First he travels from the launch pad a distance of 52
1 answer
664 views
What are the “Rentier States” and why do the oil-producing countries in the Middle East qualify as rentier states?
1 answer
544 views
The height in metres of the water in a harbour is given approximately by the formula d=6+3cos30t, where t is the time in hours
3 answers
1,644 views
what are the electrolytes in ORS?
1 answer
414 views
a car has wheel of radius 0.3m and is traveling at a speed of 36m\s. calculate the angular speed of the wheel
2 answers
540 views
diagram all possible pathways for deexciting from n=4 to n=1
2 answers
530 views
The ages of a woman and her daughter add to 45, five years ago, the woman is six times her daughters age. How old was the woman
1 answer
784 views
What is the percent yield of a reaction that converts 5,0 kg of toluene to 6,02 kg of benzoic acid?
2C6H5CH3 + 3O2 --> 2C6H5CO2H
1 answer
382 views
A tub is filled in 20mins but there is a leakage in it which can empty the full tub in 1hr in how many minutes can it be
1 answer
578 views
If my ladder is 6m long and its foot is 1.5m from a vertical wall how far can the ladder reach up the wall?
1 answer
444 views
need help on history question
The Gulf of Tonkin incident opened the door to A) Kennedy's assassination B) the Rolling Thunder
1 answer
588 views
. Mountain climbers often brew tea by melting snow, which they heats over a stove. Our stove
burns butane (C4H10), which has a
1 answer
906 views
A 3.04 g piece of aluminum at 60.0 °C is placed into a “styrofoam cup” calorimeter filled with
150.0 mL of water at 25.0
2 answers
712 views
I was in a camp when i came back from the camp someone said "good exposure though what shoul i say ??
1 answer
498 views
Consider the function L = 4h where L equals the number of legs on h horses. What would be the domain and range of the function?
1 answer
458 views
Talor is building a birdhouse for his backyard. He needs a piece fo wood that is 8 inches long and 6 inches wide. What is the
2 answers
699 views
Byron’s house has a roof with dimensions shown. (Roof: 1m Height, 7m Hypotenuses, 12m length)
He knows that the average
1 answer
883 views
What is one of the outputs or products of respiration?
It has to be a four letter word with the second letter being e because it
1 answer
536 views
1. For each of the following underlined statements identify any vagueness, semantic ambiguity or syntactic ambiguity in the
2 answers
907 views
theoretically if you roll a number cube 36 times, how many times would you expect to roll the number one? could you also give me
7 answers
8,679 views
In the analysis of a sample of drinking water, a rate of 25.00 mL of the water requires 16.04 mL of AgNO3 to 0.05647 M in order
1 answer
559 views
You have decided to get a job to pay for a car to drive.
You estimate it will cost you $300 per month to buy and maintain the
1 answer
713 views
You have decided to get a job to pay for a car to drive.
You estimate it will cost you $300 per month to buy and maintain the
1 answer
620 views
You have decided to get a job to pay for a car to drive.
You estimate it will cost you $300 per month to buy and maintain the
1 answer
654 views
1. In paper chromatography, is the substance being tested the solute or solvent? Explain your answer.
I think the substance
0 answers
903 views
The volume of 10 ml of H2SO4 solution was diluted
250 ml with distilled water. This resulting solution, 25 ml were neutralized by
1 answer
1,171 views
The region enclosed by the graph e^(x/2), y=1, and x=ln(3) is revolved around the x-axis. Find the volume of the solid
2 answers
718 views
Students are being surveyed about the weight of books and supplies they are carrying as they attend class.
a. Identify the
1 answer
725 views
Find the equation of the line that has the same slope as the line through points (0,4) and (-5,7). But goes through point (-6,4)
1 answer
449 views
In what acceleration will tear a rope if it raises vertically body mass of 500 kg? The rope bears maximal strength force 15 kN.
1 answer
423 views
Determine the weight of an astronaut with a weight of 100 kg, if the rocket which rises him moves with acceleration 9,8 m/s^2
0 answers
420 views
Suppose the roots of 2x^2 + 10x + 1 are a and B. Suppose another quadratic, x^2 + 1x + r, has roots y = a + 1/B and σ = B +
1 answer
460 views
A 200.0N steel box resting on a smooth surface is
pushed to the right by a force of 50N, if the coefficients of starting and
1 answer
512 views
Compute the following polynomial in standard form:
(1 + x + x^2 + . . . + x^16)(1 - x)
1 answer
395 views
28cm3 of a gas weighs 0.4g at STP.Calculate the molecular mass of the gas.
1 answer
747 views
1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving
1 answer
1,880 views
You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving
0 answers
1,313 views
1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving
1 answer
3,364 views
You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving
1 answer
829 views
As the number of units manufactured increases from 4000 to 6000 the total cost of production increases form $22000 to $30000.
1 answer
733 views
The pricing policy of a company follows the demand equation p=D(x). D(x) being the price per unit when x units are demanded.
1 answer
2,059 views
A certain vehicle can accelerate from rest to a speed of 25m/s in a time of 8s.What average power is needed to cause this
1 answer
499 views
A workshop table has an equilateral triangular top, each side of which is 900mm, the legs being at the three corners. A load of
1 answer
645 views
A 1.54 x 10-2-kg block is resting on a horizontal friction-less surface and is attached to a horizontal spring whose spring
2 answers
858 views
how many moles are released when 13.2 g of ammonium sulfate 2NH4SO4 is dissolved in water ? I know 13.2 g 2NH4SO4 = .099 moles
1 answer
966 views
How many kilograms of water can be evaporated at 100 degrees Celsius by the combustion of 470 litres of fuel oil whose heat of
0 answers
557 views
All of the following statement are true about factors EXCEPT:
Complexity, Miniaturization, and productivity are examples of
1 answer
610 views
What is The propositional phrase of this sentence.The ticket holders waited patiently (outside the movie theater).
1 answer
649 views
Find approximate solutions rounded to three decimal places for
f(x)=x^2-5x+3
1 answer
574 views
Find the first 4 terms of the recursively defined sequence.
a subscript 1 =9, a subscript 2 =9, a Subscript n+1=a Subscript
1 answer
706 views
Two identical gas cylinders each contain 20.0 kg of compresses air at 1.00 x 106 pa and 275 K. One of the cylinders if fitted
1 answer
617 views
Two identical gas cylinders each contain 20.0 kg of compresses air at 1.00 x 106 pa and 275 K. One of the cylinders if fitted
1 answer
590 views
The rate constant for the equation, 2C2F4 → C4F8, is 0.05 M^−1· s^−1. We start with 0.111 mol C2F4 in a 3.00-liter
0 answers
783 views
Ammonium nitrate a common fertilizer was used by terrorists in the trgic explosion in oklahoma city in 1995.how many litres of
1 answer
760 views
a source of hydrogen is an important issue of hydrogen fuel cells are going to become useful in automobiles. What important
0 answers
457 views
If 4.56 mol of zinc react with excess copper (ii) sulphate, how many moles of precipitate will be formed?
1 answer
606 views
What is 100,000,000,000,000 times 999,999,999,999?
2 answers
550 views
Principles of heat: How many kilograms of water can be evaporated at 100 degrees Celsius by the combustion of 470 litres of fuel
1 answer
784 views
There are some hats in a box.1/6 of them are red, 1/3 are blue, and 3/7 of the remainder are green. If there are 27 green hats,
2 answers
569 views
Kieth spends 1/6 of his savings on a magazine and 2/5 of the remainder on a book. What fraction of his savings is left?
3 answers
670 views
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