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Fred
Questions and answers by visitors named
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
359 views
Simplify a(-2)power divided by b(6)power times c(-8)power so there are no negative exponents
1 answer
420 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
344 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
314 views
What is the best way for me to learn more about airport operations??
1 answer
348 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
432 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
903 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
461 views
If f(x)= x^2 + 2x
What is f(-x) What is f(1/a) Thanks!
1 answer
203 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
575 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
525 views
The R&D organization has decided it wants to promote total involvement and create a learning organization. The
1 answer
380 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
997 views
1. Which word does NOT describe Neoclassical literature of the 17th century?
balanced religious elegant concise 2. In lines 17-20
7 answers
659 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
408 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
372 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
3,695 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
705 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
455 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
1,040 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
2,988 views
At elevated temperatures, sodium chlorate decomposes to produce sodium chloride and oxygen gas. A 0.8915-g sample of impure
4 answers
3,321 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
891 views
Is these answers correct?
devoid infuriate jeopardize smug implore intimidate sibling sneer introvert vivacious 1-2. The people I
5 answers
4,268 views
Is these answers correct?
condone, pathetic, feign, precedent, comtemplate gape furtive feasible, fiscal, punitive 1-2. "Would it
5 answers
3,298 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
507 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
420 views
Is these answers correct?
devoid intimidate jeopardize sneer implore introvert sibling vivacious infuriate smug 1-2. The people I
2 answers
819 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
775 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
531 views
what is the molarity of 28.9 g of cacl2 dissolved in water to make 0.78 l of solution
4 answers
4,132 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
464 views
Need help with coming up with a extraction flow scheme for separating the compounds in this mixture: aniline, p-anisic acid,
1 answer
401 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
734 views
How do I convert this decimal into a fraction?
3.083 (The last 3 is repeating by itself)
7 answers
2,639 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
752 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
439 views
What is the area bounded by y=x^2 and y=x^3-2x?
6 answers
483 views
If 1/8" = 30' how many fractions of an inch is 24'
2 answers
891 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
3,954 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
1,051 views
How many litres of water at 100°C are vaporized by the addition of 5.00 MJ of heat
9 answers
498 views
Find the linearization of f(x)=cos(x)-sin(2x) at x = 0.
2 answers
537 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
595 views
The curve is given by x^2+2r(sqrt(y))=xy
What is dx/dy when r is constant?
1 answer
383 views
Given h(x)=(6x^2+x)/x , find h'(0)
1 answer
422 views
a company plans to sell embroidered hats for $15. the company's financial planner estimates that the cost, y, of manufacturing
3 answers
1,895 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
903 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
374 views
How do the constants 5, 4, and 12 in
f(x) = 5x^2 - 4x + 12, affect the derivative? Thanks!
1 answer
328 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
4,162 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
1,490 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
623 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
1,237 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
2,856 views
For this question 3/4% of 75 would I change 3/4 to a decimal and put it over 100?
4 answers
480 views
Is this the answer to 3/4% of 75: 0.5625
1 answer
371 views
This presentation should consist of 5 Gerund sentences (subject, subject complement, direct object, indirect object, and object
2 answers
666 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
474 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
906 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
12,267 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
821 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
623 views
?Fe(2+)+?NO3(-)+H(+)==》No+Fe(3+)+H2O
What's the balanced equation?
2 answers
489 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
17,207 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
2,069 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
460 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
567 views
Write and solve a real- world problem that can be solved using the expression 3/4 divided by 1/6?
6 answers
1,852 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
1,141 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
1,387 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
859 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
2,270 views
The grade 5 class sold cheese for a fundraiser. What fraction of the orders did each of the four students take
2 answers
489 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
1,733 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
654 views
Electric circuit with three cells each of emf 2v and negligible internal resistances are connected in series with an ammeter two
4 answers
1,692 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
387 views
Find the rule for these ordered pair: (1,4) (2,6) (3,9) and (4,13)
1 answer
363 views
2x^3 + x^2 - 5= 0
x=? Is this possible to solve?
4 answers
436 views
2x^3 + x^2 - 5= 0
x=? What is the process I must do in order to get the answer?
4 answers
340 views
How much do you need to subtract from 43/10 to make 4?
6 answers
792 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
737 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
596 views
Factorise 8x^2 - 1/8
1 answer
447 views
How do you factorise x^4-x^2y-6y^2
3 answers
501 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
385 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
584 views
Factorise x^4-x^2y-6y^2 Thanks to whoever solves it
1 answer
418 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
480 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
369 views
If sin x = 2/3 and cos y = 3/4, find the exact value of sin ( x + y ).
4 answers
1,466 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
665 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
1,867 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
486 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
480 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
654 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
596 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
614 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
413 views
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