Friday

December 19, 2014

December 19, 2014

Total # Posts: 588

**science**

Valency is the combining capacity of an element. It is the number of electrons in an atom that actually take part in bond formation. For example, carbon atom with an atomic number 6 has 4 valence electrons.K LC6 2 4 Carbon atom is capable of forming 4 bonds. Hence its valency ...
*May 17, 2013*

**english**

The word 'is' is in the present tense as well, but in this case, you are correct -- it is B/'are.'
*May 15, 2013*

**Math**

6(y²-2) + y < 0
*May 12, 2013*

**Math/Probability**

How do I calcuate probability word problems
*May 7, 2013*

**3rd grade math**

draw a box that has 3 valumes of 12 cubic units in 3 different ways
*April 30, 2013*

**finance**

Smith Technologies is expected to generate $125 million in free cash flow next year, and FCF is expected to grow at a constant rate of 3% per year indefinitely. Smith has no debt or preferred stock, and its WACC is 14%. If Smith has 45 million shares of stock outstanding, what...
*April 23, 2013*

**math**

weight of car A is 15 lb less than the weight of two B cars. The truck weighs 2155 lb more than car A. What is the curb weight of each vehicle?
*April 10, 2013*

**Money and Banking**

Canada's 5 largest investment banks are owned by Canada's largest banks. This is because: a) They are all ultimately owned by the taxpayer b) Investment banks must have bank depositor's cash to give them liquiditiy c) Ultimately, they are in the same kind of ...
*March 31, 2013*

**Business/Finance**

Your credit card: a) Is a form of demand deposit b) Is a form of time deposit c) Is an asset d) Has all the functions of money So from my understanding, credit cards are not an asset, since they do not store value, can't be sold or given away. Hence they also do not have ...
*March 31, 2013*

**math**

The hypotenuse of a right triangle is 1 cm more than twice the shorter leg, and the longer leg is 9 cm less than three times the shorter leg. Find the lengths of the three sides of the triangle..
*March 21, 2013*

**Physics**

A tire 2.0 ft in diameter is placed on a balancing machine where it is spun so that its tread is moving at a constant speed of 51 mph. A small stone is stuck in the tread of the tire. What is the acceleration of the stone as the tire is being balanced?
*March 20, 2013*

**math**

frank cut a pie into 10 equal slices there are only 3 slices left what is the measure of the angle for the 3 slices that are left?
*March 19, 2013*

**calculus**

Let f be the function be defined by f(x)=5^((2x^2)-1)^(1/2) A) is f an even or odd function? Justify answer. B) find the domain of f. C) find the range of f. D) find f'(x)
*March 14, 2013*

**Calculus**

Let f be the function be defined by f(x)=5^((2x^2)-1)^(1/2) A) is f an even or odd function? Justify answer. B) find the domain of f. C) find the range of f. D) find f'(x)
*March 14, 2013*

**arithmetic**

the $225 per decameter. if you multiply the 24.75 timesten you get Way high than $225
*February 15, 2013*

**arithmetic**

The city counsel is trying to buy fencing the size of 740 meters. One fencing company is offering $24.75 per meter another is offering $225 per decameter. Which is the better buy???
*February 15, 2013*

**Math**

An open box is made from a square piece of metal by cutting out a 4 inch square from each corner and turning up the sides. Find the area of the original square if the box is to contain: A) 16 cubic inches And B) 400 cubic inches
*January 30, 2013*

**math**

Suppose you roll a fair die 18 times. (a) What is the sample space? (b) What is the probability that each number from 1 to 6 appears exactly thrice? (c) What is the probability that the number 1 appears exactly twice, 3 appears exactly four times, and 5 appears exactly six times?
*January 27, 2013*

**math exam prep question**

determine the quadratic equation with x-3 sqrt of 2 and -3 sqrt 2 in the form ax^2+bx+c=0?? How do you do this I do not know how to..please explain Thanks!
*January 22, 2013*

**math exam prep question**

no simplify sorry forgot to specify..
*January 22, 2013*

**math exam prep question**

how do u do 9x^2-30xy+2y^2 ?
*January 22, 2013*

**math exam prep question**

Simplify: 1/4a+2 + 4/6a+3 I got 14/6(2a+1) but I don't think it is right
*January 22, 2013*

**math exam prep question**

oh yeah sorry for some reason i did 8+6/6(2a+1)...it should have been 11 thanks for the help:)
*January 22, 2013*

**math exam prep question**

Simplify: 1/4a+2 + 4/6a+3 I got 14/6(2a+1) but I don't think it is right
*January 22, 2013*

**Computer**

What is the standard configuration for a newly purchased hard drive? A. Master-drive B. Single-drive C. Slave-drive D. Primary-drive
*January 19, 2013*

**Computer**

What is the name of the Windows Utility that you use to format drives? A. System Manager B. System Drive Manager. C. Disk Management D. Windows Drive Administrator
*January 18, 2013*

**Computer**

For which operating system is exFAT NOT an option when formatting a partition? A. Windows XP with SP3 B. Windows XP with SP2 C. Vista with SP1 D. Vista
*January 18, 2013*

**Computer**

You have an empty 64 bit PCI slot in your computer. What can you install in it? A. A single 64 bit adapter card B. A single 32 or 64 bit adapter card C. A single 64 bit adapter card or two 32 bit adapter cards D. A single 64 bit adapter and an 8 bit adapter
*January 18, 2013*

**Computer**

My Guess is B
*January 10, 2013*

**Computer**

Your computer is running very slow. The LED light for the hard drive blinks nearly continually, indicating that the hard drive is spinning even when data is not being saved or read from the hard drive. Based on this scenario, what is probably causing the slowness of the ...
*January 10, 2013*

**Computer**

Your computer is running a lot of services and applications when you log on that you never use. What implications can this mean for your computer? A. Unused services and applications take up valuable hard drive space. B. Your computer uses more power than it needs to. C. 32 ...
*January 10, 2013*

**Last Question Plz helppp:((im soo sleepy!!:(**

1)The reaction between solid sodium and iron(III) oxide, Fe2O3(s), is one in a series of reactions that occurs when an automobile air bag inflates. 6Na(s) + Fe2O3(s) -> 3Na2o(s) + 2Fe(s) If 100.0 g of iron(III) oxide are used in this reaction, what mass of solid iron will ...
*December 19, 2012*

**Chemistry**

1)The following balanced chemical equation represents the reaction of calcium carbonate CaCO3 (s), with hydrochloric acid : CaCo3(s) + 2HCl (aq) -> CaCl2(aq) + CO2(g) + H2O(l) If 155 g of calcium carbonate reacts with 245 g of hydrochloric acid, what mass of calcium ...
*December 19, 2012*

**Math**

Its 16-9 which is 7 and therefore it is 7/24:P so simple..
*December 19, 2012*

**Algebra**

Two functions f and g are defined by f:x = x^2 + 3 g:x = 2x+1 Find the function fg
*December 19, 2012*

**Algebra**

Two functions f and g are defined by f:x = 25 /(3x-2) g:x = x^2 Find the composite function
*December 19, 2012*

**physics**

An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale.
*December 9, 2012*

**Grammar**

Identify the parts of speech the this sentence. When they raise me to a high position, then ill get a raise
*December 7, 2012*

**math**

There are 12 slices of pie if jerry ate 1/3 of the pie, how many slices did he eat?
*December 6, 2012*

**chemistry**

A 93L sample of dry air is cooled from 145 to-22 under constant pressure.What is the final volume?
*November 25, 2012*

**organic chemistry**

What is the major product of the nitration reaction of 2-methylacetanilide? Why is it the major product?
*November 18, 2012*

**Chemistry**

A 0.08425 g sample of gas occupies 10.0-mL at 292.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound? Identify the geometry around each carbon atom. a)trigonal pyramidal b)bent c)...
*November 17, 2012*

**Business Research**

A data processing analyst for a research supplier finds that a preliminary computer run of survey results show that consumers love a client’s new product. The employee buys a large block of the client’s stock. Discuss the ethical ramifications of this decision. Which...
*November 10, 2012*

**math**

4 3/4 + 3 1/2 ADD AND WRITE IN SIMPLEST FORM
*November 5, 2012*

**Factor Theorem Math**

Use the Factor Theorem to determine the rational zeros of this function. Then use other methods to determine any other zero of this function. 4x^4-x^3-11x^2-2x+6 (I already did p/q and found a total of 16 possible zeros. I synthetic divide all of them and none gave me a root ...
*October 28, 2012*

**physics**

Did you ever figure it out?? I am doing something VERY similar now
*October 23, 2012*

**Psychology**

Class x drugs have an extremely high risk of causing defects to the fetus during pregnancy, therefore the answer would be B.
*October 16, 2012*

**Trig**

Steve, you are the best! Thanks for your patience.
*October 16, 2012*

**Trig**

okay so, d^2=282.24+501.76-752.64(cos45°) =22.1749sqrt =4.7090 Not the same answer you got.
*October 16, 2012*

**Trig**

H=Home P=Pitcher S=Second Base HP=16.8 HF=22.4 Find distance PF d^2=16.8^2+22.4^2-2(16.8)(22.4)cos H d^2=282.24+501.76-752.64cos d^2=31.36cosH Stuck from here....
*October 16, 2012*

**Trig**

They aren't explained in a way that I can understand them. Can you explain more clearly?
*October 16, 2012*

**Trig**

A baseball diamond is a square with sides 22.4m The pitchers mound is 16.8m from home plate on the line joining home plate and second base. How far is the pitchers mound from first base?
*October 16, 2012*

**Math**

A baseball diamond is a square with sides 22.4m. The pitchers mound is 16.8m from home plate on the line joining home plate and second base. How far is the pitchers mound from first base? Step by step please.
*October 15, 2012*

**Trig**

Lol! Apparently I have been working on this question too long! Thanks!
*October 15, 2012*

**Trig**

Yes I understand the diagram points and can see how you came up with this now but am having trouble coming up with an answer for xtan6°=(1.1-x)tan13° I know this is basic but I am having trouble isolating the x! I am getting x=tan13°-tan6°/1.1 which is giving ...
*October 15, 2012*

**Trig**

Can you show me the steps you used to isolate x?
*October 15, 2012*

**Trig**

From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the oppisite side of the runway are 6 degrees and 13 degreess respectivel. The points and the tower are in the same vertical plane and the ...
*October 15, 2012*

**Math**

A 5.0m ladder is leaning 3.1m up the wall. What is the angle the ladder makes with the ground? Would this be..... sinA=3.1/5.0 sinA=0.62 sin^-1=38degrees?
*October 6, 2012*

**math**

Mrs. rhombus has to make supply bags for a math lesson. She has 60 folders, 45 pairs of scissors, and 30 rulers. What is the greatest number of supply bags that Mrs. Rhombus can use to divide the school supplies into equal groups?
*October 3, 2012*

**chemistry**

calculate the volume in milliliters of a 5.55g sample of solid with density of 3.67g/ml
*September 26, 2012*

**math 116**

Find value for m and b so that y=mx+b models the monthly cost of driving the car x miles. Car costs $156.10 and $0.25 per mile
*September 24, 2012*

**PHYSICS**

7227.1
*September 6, 2012*

**Math, Pre Calc**

Given that (+-2) and i are the roots of a 4th degree polynomical, find the equation. Please help! Thank you:)
*September 5, 2012*

**sculpture**

I have Art III Ceramics. I need a concentration piece to make at least 5 sculptures. I decided on pandoras box. the 5 emotions that were chosen were hope, sickness, vanity, jealousy, and lazyness. I know this is an uncreative way to get a concentration idea but i have been ...
*September 3, 2012*

**POl**

An inactive substance or simulated medical procedure is called a
*September 2, 2012*

**economics**

what are some mesoeconomics variables/indicators
*August 25, 2012*

**College Algebra**

R(x)=x^3-125/x^2-49
*August 7, 2012*

**econmics**

The %increase in price= (7-5)/5x100= 40% The %decrease in quantity=(25-15)/25 x 100= 40% Elasticity=40/40=1,unit elasticity.
*July 20, 2012*

**Trigonometry**

Would it be the same answer as the other problem?
*July 15, 2012*

**Trigonometry**

Use the half-angle identities to find all solutions on the interval [0,2pi) for the equation sin^2(x) = cos^2(x/2)
*July 15, 2012*

**Trigonometry**

Use the half-angle identities to find all solutions on the interval [0,2pi) for the equation cos^2(x) = sin^2(x/2)
*July 15, 2012*

**Trigonometry**

Show algebraically how to confirm that cos2x=cos^2x-sin^2x using the sum and difference identities
*July 15, 2012*

**physics**

if the swinging pendulum (pirate ship) swings on an arc with a radius of 10 meters, how much time does it take to swing through 5 swings?
*May 28, 2012*

**Math**

It cost your office $620 to mail 500 flyers. How much did it cost to mail each flyer?
*May 27, 2012*

**chemistry**

Na + H2O ¨ NaOH + H2 How many moles of H2 would be formed from 30 grams of Na in the following (UNBALANCED) equation?
*May 17, 2012*

**graphs and angles**

a survey about students government program at a school found that 120 students wanted an after school program and 240 students wanted durning school and 40 students wanted none, If a circle graph is made from this data, what would be the measure of the central angle for the ...
*April 25, 2012*

**Early Childhood Literacy**

Erikson's work identified:
*April 24, 2012*

**Algebra**

Haha its ok. Thanks for the help.
*April 16, 2012*

**Algebra**

Ay, my bad. Thanks :) and you mean x=5 or x=-4 right?
*April 16, 2012*

**Algebra**

Wouldn't it be x^2-20=4 since (1/4)•4x= (4x/4)? So that means it would be x^2-24=0, right? Where would I go from there?
*April 16, 2012*

**Algebra**

Solve for x: (x/4)-(5/x)=(1/4)
*April 16, 2012*

**Psychology**

What are the primary biological foundation of psychology linked to behavior?
*March 21, 2012*

**Statistics**

(53*8)+(21*6)+(26*4)= 654 654/100= 6.54 letters
*March 20, 2012*

**Physic **

A point charge q1=-8 is located at the orgin of a rectangular coordinate system. A second charge q2=6nC is located at a distance of 0.2m from the orgin on the positive x-axis, and a third charge q3=12nC is located at a distance of 0.2m on the positive y-axis. Find the ...
*March 14, 2012*

**physics**

The electric field at a distance of 0.4m from a point charge q is 20.0N/C. Find the charge “q”. Help it seems simple but I keep getting a huge number
*March 14, 2012*

**Chemistry**

3.54*10^7 g of TiCl4(g) are reacted completely. If 7.91*10^6 g of Ti(s) is actually obtained, calculate the percent yield.
*March 11, 2012*

**physics**

a weightlifter lifts a set of weights a vertical distance of 2.36. if a constant net force of 335 N is exerted on the weights how much net work is done on the weights?
*March 9, 2012*

**Physics**

A car travels the same distance at constant speed around two curves, one with twice the radius of curvature of the other. For which of these curves is the change of the velocity of the car greater? Explain.
*March 8, 2012*

**Math**

Jesse has 2 1/3 pints of soup.He makes dinner for his friends and serves 1/2 of his soup.How much did he serve?
*March 6, 2012*

**Clac- math**

a 20 foot ladder leaning up against a vertical wall begins to slip. the base of the ladder makes an acute angle with the floor. when the angle equals 60 degrees the angle is decreasing at 0.1 radians/second. find the rate at which the height of th upper end of the ladder is ...
*March 1, 2012*

**Chemistry**

What are the various uses of radioactivity in healthcare? What are the future trends in healthcare with respect to the use of radioactivity?
*February 19, 2012*

**HELP12**

I think it's B
*February 19, 2012*

**HELP12**

D is not correct.
*February 19, 2012*

**HELP 7**

NOT!
*February 19, 2012*

**ENG**

No this answer is correct I have the definition written down and word for word verbatim it says Connotative Definition- Made up of the set of associations implied by a word in addition to it's literal meaning.
*February 18, 2012*

**Math**

Please someone help!
*February 8, 2012*

**Math**

Billy is standing 80 feet from the base of a building. The angle of elevation to the top of the building is 35 degrees. If the distance from Billy's eyes to the ground is five feet, how tall is the building?
*February 8, 2012*

**Algebra 1**

The x intercept is 9, and the y intercept is 9. Just plug in 0 for x to get y and 0 for y to get x!
*February 8, 2012*

**math**

the sale of drawing is 1/4 in. = 12 ft. find the atual measurement
*February 7, 2012*

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