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Fred
Questions and answers by
Fred
, page 2
Questions (297)
What energy is associated with a photon in the infared region of the spectrum having a frequency of 4.5*10^12s^-1
1 answer
365 views
Simplify a(-2)power divided by b(6)power times c(-8)power so there are no negative exponents
1 answer
422 views
Hi I need help with a problem
The accuracy of what measurement must be increased in order to increase the accuracy for the
1 answer
345 views
I am taking a ground school class for my private pilot license and am having trouble with weather, what is the best way to go
1 answer
315 views
What is the best way for me to learn more about airport operations??
1 answer
349 views
1. Suppose you are the owner of a tile company who purchases tiles from a supplier at a rate of $5 each.
a. The variable cost is
1 answer
435 views
Suppose your tile company spends $ 195 each month, regardless of how many tiles are purchased as supplies. How much do you spend
1 answer
904 views
The profit made from the sale of tiles is found by subtracting the costs from the revenue. (This is the money you take in minus
1 answer
463 views
If f(x)= x^2 + 2x
What is f(-x) What is f(1/a) Thanks!
1 answer
204 views
Roger wants to carpet a rectangular room with the length of 8 ¾ feet and a width of 9 1/3 feet. If he has 85 square feet of
2 answers
577 views
What size should be the frame be?
Suppose an artist has a circular picture with a diameter 6 inches which she wishes to frame by
4 answers
527 views
The R&D organization has decided it wants to promote total involvement and create a learning organization. The
1 answer
381 views
22. What connection can be drawn between Dickens's father and Tom?
Both worked in a bank. Both favored straight facts. Both were
3 answers
998 views
1. Which word does NOT describe Neoclassical literature of the 17th century?
balanced religious elegant concise 2. In lines 17-20
7 answers
660 views
i thought you were a helping site please help i read my lessons but i just coulnd answer some questions. help please i need to
5 answers
409 views
Find the area bounded by y= -0.5x+6, y= !/4 x and the y-axis. Sketch a graph of the two functions and shade in the area.
1 answer
373 views
Find the volume generated when the area bounded by the curve y^2 = 16x, from x = 0 to x = 4 is rotated around the x-axis.
3 answers
3,697 views
One in every 685 children born in the chicoutimi area of quebec province has tyrosinemia. It is cause by having two copies of
2 answers
708 views
For solution 1, 4.00mL of 0.0200 M Cr(NO)3 was added to 20.00ml of 0.0200 M Na2H2EDTA, then the a time and absorbance were taken
1 answer
458 views
Molarity of NaOH solution = 0.06115
Volume of NaOH used = 15.50 mL Volume of unknown Sample = 10.00 mL Find the Moles of NaOH
2 answers
1,042 views
A solution is 0.10M Pb(NO3)2 and 0.10M AgNO3. If solid NaCl is added to the solution what is [Ag+] when PbCl2 begins to
3 answers
2,989 views
At elevated temperatures, sodium chlorate decomposes to produce sodium chloride and oxygen gas. A 0.8915-g sample of impure
4 answers
3,324 views
A proton and an electron enter perpendicular to the direction of the magnetic field. The speed of the proton is twice the speed
1 answer
894 views
Is these answers correct?
devoid infuriate jeopardize smug implore intimidate sibling sneer introvert vivacious 1-2. The people I
5 answers
4,271 views
Is these answers correct?
condone, pathetic, feign, precedent, comtemplate gape furtive feasible, fiscal, punitive 1-2. "Would it
5 answers
3,303 views
Malcom designed the roof plan of a house and implement shed. The dimensions of the house's roof are 25 ft wide by 40 long. The
1 answer
508 views
A telephone pole is 55 feet tall. Jeri stands in the shadow of the pole. She is 66 inches tall, gut her shadow is 12 feet long.
1 answer
421 views
Is these answers correct?
devoid intimidate jeopardize sneer implore introvert sibling vivacious infuriate smug 1-2. The people I
2 answers
822 views
A van drive 17.5km north. Then it turns west and drives 9.1km. The van then drives 14.5km south. The entire trip takes 40
1 answer
776 views
A popular brand of pressure washer claims to deliver 330 litres per hour of water at a pressure of 80 bar, drawing 1400 W of
2 answers
532 views
what is the molarity of 28.9 g of cacl2 dissolved in water to make 0.78 l of solution
4 answers
4,137 views
A firm with 50% debt to equity ratio has a cost of equity capital of 15%, a cost of debt of 9% and a tax rate of 33%. The firm
1 answer
466 views
Need help with coming up with a extraction flow scheme for separating the compounds in this mixture: aniline, p-anisic acid,
1 answer
402 views
What kind of reaction is this (redox, precipitation, acid-base, or complex ion formation reaction)?
1. 3 Ca(s) + 2 Al^3+(aq) -> 3
4 answers
737 views
How do I convert this decimal into a fraction?
3.083 (The last 3 is repeating by itself)
7 answers
2,643 views
Which is true about a 99% confidence interval for a population proportion based on a given sample?
I. We are 99% confident that
2 answers
754 views
What molecular formula can you deduce from a mass spectrometry of 156 m/z. And how do you get that formula? Steps on how to get
1 answer
440 views
What is the area bounded by y=x^2 and y=x^3-2x?
6 answers
484 views
If 1/8" = 30' how many fractions of an inch is 24'
2 answers
892 views
A windowpane is half a centimeter thick and has an area of 1.0 m2. The temperature difference between the inside and outside
3 answers
3,956 views
A puddle holds 150 g of water. If 0.50 g of water evaporates from the surface, what is the approximate temperature change of the
3 answers
1,055 views
How many litres of water at 100°C are vaporized by the addition of 5.00 MJ of heat
9 answers
499 views
Find the linearization of f(x)=cos(x)-sin(2x) at x = 0.
2 answers
539 views
For what values of k does the line y= x + k pass through the circle defined by x^2 + y^2 = 25 at:
2 points? 1 point? 0 points? I
4 answers
596 views
The curve is given by x^2+2r(sqrt(y))=xy
What is dx/dy when r is constant?
1 answer
384 views
Given h(x)=(6x^2+x)/x , find h'(0)
1 answer
426 views
a company plans to sell embroidered hats for $15. the company's financial planner estimates that the cost, y, of manufacturing
3 answers
1,901 views
Select the letter of the term that identifies the function of the
phrase in parentheses in the following sentence: One goal is
2 answers
904 views
Can someone show me how to solve this problem?
For a program that is 70% parallelizable, what will be the speedup relative to a
1 answer
375 views
How do the constants 5, 4, and 12 in
f(x) = 5x^2 - 4x + 12, affect the derivative? Thanks!
1 answer
329 views
Can someone explain how to solve this problem?
Sand is being dumped on a conveyor belt onto a pile in such a way that the pile
4 answers
4,165 views
A surveyor standing 62 meters from the base of a building measures the angle to the top of the building and finds it to be 38°.
4 answers
1,493 views
Beam supported by a rope that can rotate about a hinge. The beam is supported by a rope attached 1.00 meter from the end of the
1 answer
624 views
A football is punted. Its height, H metres is given by the quadratic relation with equation: H = -5t2 + 21t, where t is the time
4 answers
1,240 views
Which of the following integrals represents the volume of the solid formed by revolving the region bounded by y=x^3, y=1, and
4 answers
2,859 views
For this question 3/4% of 75 would I change 3/4 to a decimal and put it over 100?
4 answers
482 views
Is this the answer to 3/4% of 75: 0.5625
1 answer
372 views
This presentation should consist of 5 Gerund sentences (subject, subject complement, direct object, indirect object, and object
2 answers
667 views
Linear Approximation
Function is y=x2 . Take three points, x=2, x=3, x=4. Approximate this function at these three points for a
1 answer
475 views
Help Please.
A wireless phone company offers two plans. In one plan, there is a monthly fee of $40 and a charge of $0.25 per
2 answers
908 views
1. Which statement is shared by both "Zoos: Joys or Jails?" and "Why Do We Need Zoos?"
a. clearly stated claim b. humorous
93 answers
12,270 views
2. Read the passage. What technique is the author using to develop point of view?
"Though zoos are meant to be a joy to viewers
3 answers
823 views
Can someone who is good at Spanish (or fluent) please proofread these short stories I'm writing for my Spanish class? I am at a
1 answer
624 views
?Fe(2+)+?NO3(-)+H(+)==》No+Fe(3+)+H2O
What's the balanced equation?
2 answers
490 views
which of the following is an example of the principle of checks and balances?
A)President can veto an act of congress. B)Members
53 answers
17,211 views
flammability is a material’s ability to burn in the presence of?
A)hydrogen B)nitrogen C)oxygen D)carbon dioxide I think the
3 answers
2,072 views
in a grain bin 90' in diameter 130'tall how many bushel of grain at 1.2445 cubic feet per bushel will the bin hold?
1 answer
462 views
Sam and Terry find a 30.0 m deep wishing well and decide to make a wish. Terry throws a penny down the well at 3.00 m/s and Sam
2 answers
568 views
Write and solve a real- world problem that can be solved using the expression 3/4 divided by 1/6?
6 answers
1,854 views
You are on a new planet and want to know the acceleration due to gravity. You take a ball and kick it at an angle of 26.0° at a
4 answers
1,142 views
A 2 digit even number is divided by 5. The quotient is a 1 digit even number. What are all the 2 digit numbers that fit this
4 answers
1,389 views
A 0.630 kg wooden block is spun around on a wooden table. The wooden block is being spun around on a 2.00 m long massless wire.
5 answers
861 views
It takes a force of 22 N to push a 10 kg box horizontally with a constant velocity over concrete. What is the coefficient of
5 answers
2,272 views
The grade 5 class sold cheese for a fundraiser. What fraction of the orders did each of the four students take
2 answers
490 views
A pair of pants costs twice as much as a shirt. The total cost of 1
1 pair of pants and 1 1 shirt is $18 $18 . If s represents
4 answers
1,735 views
Paul is standing at the bottom of a hill that is 150 meters high. He measures the angle of the elevation of the top of the hill
2 answers
655 views
Electric circuit with three cells each of emf 2v and negligible internal resistances are connected in series with an ammeter two
4 answers
1,696 views
There is a rectangle of length 1.40 cm and width 6.10 cm in the xy-plane. If the electric field can be expressed by (100.[^(i)]
3 answers
388 views
Find the rule for these ordered pair: (1,4) (2,6) (3,9) and (4,13)
1 answer
364 views
2x^3 + x^2 - 5= 0
x=? Is this possible to solve?
4 answers
438 views
2x^3 + x^2 - 5= 0
x=? What is the process I must do in order to get the answer?
4 answers
341 views
How much do you need to subtract from 43/10 to make 4?
6 answers
794 views
a ship leaves port at 12:00 noon sailing at a bearing 193° measured clockwise from north. if the ship sails 20 knots, how many
3 answers
739 views
If both the hour hand and the minute hand start at the same position at 12 o'clock, when is the first time, correct to a
4 answers
598 views
Factorise 8x^2 - 1/8
1 answer
448 views
How do you factorise x^4-x^2y-6y^2
3 answers
502 views
When I was not a king, he was subject to me. Now I am a king I am in jubject to him. Who am I?
1 answer
386 views
The length and width of a rectangular projector screen in a small theatre is 200% more than the length and width of a television
2 answers
587 views
Factorise x^4-x^2y-6y^2 Thanks to whoever solves it
1 answer
420 views
On a clear day, you can see 11.5 km in any direction from a particular lookout. If a straight road is 6.9 km from the lookout,
3 answers
481 views
5x / x^2+1 less then or equal to x. Please someone help help been stuck on it for a while and I have an exam tommorrow. Any help
3 answers
370 views
If sin x = 2/3 and cos y = 3/4, find the exact value of sin ( x + y ).
4 answers
1,467 views
A man walks at a steady course bearing 122 degrees from A to B. If A is 86 m further west than B, find (to the nearest metre)
3 answers
666 views
A committee of 6 people is to be selected randomly from a group of 11 men and 12 women. Find the number of possible committees
4 answers
1,871 views
A 4 digit number is to be selected at random from the numbers 0 to 9 with no repetition of digits. How many arrangements can
3 answers
488 views
A string of beads is made up of 5 orange and 5 black beads. If they are randomly arranged around the necklace, how many possible
1 answer
481 views
In how many ways can a comittee of 3 women and 4 men be chosen from 8 women and 7 men if two particular women refuse to serve on
3 answers
655 views
A group of 9 friends go into a nightclub and there is only a table for 3 and therefore the others will have to stand up. If the
2 answers
597 views
In how many ways can 8 people be divided into 2 groups of 3 and 5 people respectively?
Thanks again to anyone who helps. Answer
3 answers
615 views
A PIN consists of 6 numbers, with no repetition of any numbers allowed. How many different PINs are possible?
I did 10 x 9 x 8 x
1 answer
414 views
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