Thursday

September 29, 2016
Total # Posts: 678

**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*

**Finite Math**

525

*December 3, 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*

**Culturally Diverse Background**

can you help For children who are learning English as a second language, context embedded activities enhance: a. written language b. child-child socialization c. vocabulary development d. assimilation into mainstream culture. me with this question

*November 4, 2012*

**Culturally Diverse Background**

The process of learning "code-switching" is meant to: a. foster social fluency. b.teach a student the approprite use of Standard English and his/her own dialet.c. encourage one to change grammatical markers d. focus the child on mastering use of Standard American ...

*November 4, 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*

**Chemistry**

A robust first grader goes for swimming lessons three times a week, and he enjoys it thoroughly. During the first week of December, he develops an upper respiratory infection, starts coughing continuously, and has a high fever of 39°C. His condition remains the same even ...

*January 29, 2012*

**Stats**

You are allowed to choose four whole numbers from 1 to 10 (including 1 and 10). You can only choose each number once though. Which of the following statements is FALSE? A. The numbers 4, 5, 6, and 7 have the smallest possible standard deviation. B. The numbers 1, 2, 3, and 4 ...

*January 20, 2012*

**geometry**

To the nearest tenth, what's the distance between the points k(7,-10) and M (1,4)

*January 16, 2012*

**math**

I figured these out, thanks anyway. they are: 2 42 and 62 81 and 144

*December 8, 2011*

**math**

I am a prime number. I am less than 40. I am 1 more than a multiple of 5. What number am I? I am a 2 digit number. My ones digit is 2. My tens digit is even. I am between 30 and 70. what number am i? I think either 42 or 62. I am a square number. I am more than 50. My digits ...

*December 8, 2011*

**math**

25, I figured it out.

*December 8, 2011*

**math**

i am odd, my digits add to 7, i am a multiple of 5. what number am i?

*December 8, 2011*

**math**

christine went shopping and bought each of her six nephews a gift, either a video costing $14.95 or a Cd costing 16.88. she spent 91.63 on gifts how many videos and how many cd's did she buy

*December 6, 2011*

**Math**

two forest fire stations,P and Q are 20.0 km apart, A ranger at station Q sees a fire 15.0 km away, if the angle between line PQ and the line form P to the fire is 25 , how far to the nearest tenth of a kilometre is statin P from the fire

*November 26, 2011*

**Math**

state the primary trigonometric ratio associated with angle a p(-2,5)

*November 26, 2011*

**health**

5 to 15 minutes

*November 20, 2011*

**Physic**

A 290-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 31° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?

*November 10, 2011*

**math**

If a quarter circle is placed on a square target and the radius of the quarter circle is the same as the length of a side of the square, what is the probability that a dart that hits the square does not hit the quarter circle

*October 26, 2011*

**physics**

The rear window in a car is approximately a rectangle, 1.1 m wide and 0.30 m high. The inside rearview mirror is 0.45 m from the driver's eyes, and 1.45m from the rear window. Part A What is the minimum length for the rearview mirror if the driver is to be able to see the ...

*October 24, 2011*