Friday

October 21, 2016
Total # Posts: 508

**Math**

A hardware store makes a mixed bag of 42 items using screws, bolts, and washers. The cost of screws are $3.00 each, bolts cost $2.00 each, and washers are $1.50 each. The mixture calls for four times as many screws than bolts. The total cost of the mixture is $102.00. How much...

*October 16, 2016*

**Math**

What point maximizes the objective function P = 4x + 3y for the constraints below. What is the maximum value? Constraints: x>=0 y>=0 y<=1/3x-4 6>=y

*October 13, 2016*

**Physics**

Figure shows a circular wire loop of radius r carrying current i placed in a perpendicular magnetic field B. Suppose that the radius of cross section of the wire is a. Find the decrease in radius of loop when magnetic field is switched off if Young’s modulus is Y.

*September 28, 2016*

**Algebra**

12. Determine whether y varies directly with x. If so, find the constant of variation and write the function rule. x - 1, 2, 5 y - 1, 2, 5

*September 27, 2016*

**Algebra**

graph the inequality y<-|x - 5|

*September 27, 2016*

**Algebra**

8. Write an equation for a trend line and predict the value when x is 15. x 0 3 6 9 12 y 17.5 35.4 50,5 60.6 66.3

*September 27, 2016*

**Algebra**

7. Write the equation of a trend line. Number of hours 8 5 12 10 2 9 11 14 Score% 7562 80 85 35 70 82 95

*September 27, 2016*

**Math**

an oak tree casts a shadow that is 5 meters long. at the same time, a 6.2-meter-tall flagpole casts a shadow 4 meters long. how tall is the tree?

*September 11, 2016*

**Chemistry**

One isotope of a metallic element has mass number 10 and has 7 neutrons in the nucleus. It forms an atomic ion having 2 electrons. Enter the symbol for this ion

*September 6, 2016*

**Goverment**

Oh and btw the answers A. XD

*August 17, 2016*

**Goverment**

Which of the following was one compromise related to the Declaration of Independence that was agreed to by the delegates to the second continental congress? Language condemning the slave trade was removed Language criticizing the English people was strengthened A list of ...

*August 17, 2016*

**Chemistry**

Describe how lead(II) iodide cen be prepared in the laboratory

*August 2, 2016*

**physics**

Michael, whose mass is 80 kg, runs at a speed of 3 m/s. What is his kinetic energy?

*July 18, 2016*

**Model Essays**

To analyze it for me following Visser's example

*July 12, 2016*

**Model Essays**

All of us have probably experienced a particular moment (or perhaps many moments) when we were willing to dine out on anything but fast food. What do you think we are seeking at such times? Following Visser's example, write an essay analyzing the "culture" of a ...

*July 12, 2016*

**Math**

What is the difference between 20 hundreds and 3 x 10 to the 2nd power

*June 25, 2016*

**Math**

How much more is 245,612 than the combined numbers of 18,912 and 45,608

*June 25, 2016*

**Math**

I am a number between 1000000 and 2000000. My ones digit is the sum of my tens and hundreds digits and is also the sum of my millions and ten thousands digits.my hundred thousands, thousands, and ones digits are the same.the sum of my digits is 45.what number am i?

*June 25, 2016*

**Math**

I am a number between 1000000 and 2000000. My ones digit is the sum of my tens and hundreds digits and is also the sum of my millions and ten thousands digits.my hundred thousands, thousands, and ones digits are the same.the sum of my digits is 45.what number am i?

*June 24, 2016*

**Finance**

Mrs. Rogers wants to take a trip in ten years, she can save 650 every 3 months and earns 7.8% compounded quarterly. How much is her account worth at 5 years? What formula should I be using for this? None of them I have tried seem to give me near the correct answer.

*May 16, 2016*

**Geography**

Islanders living in Beqa, Fiji lived primarily by hunting and eating meat by fishing and cultivating tara (my answer) by gathering nuts for exports by eating plants

*May 4, 2016*

**TRIGONOMETRY2**

color each point in the coordinate plane either red or blue. prove that no matter how the coloring is done there must exist two points of distance one that are the same color.

*May 2, 2016*

**TRIGONOMETRY**

given real numbers x, a, b with x>= a>= b>= 0, show that sqrt x+b - sqrt x-a >= sqrt x+a - sqrt x-b

*May 2, 2016*

**trig3**

color each point in the coordinate plane either red or blue. prove that no matter how the coloring is done there must exist two points of distance one that are the same color.

*May 1, 2016*

**trig2**

given real numbers x, a, b with x>= a>= b>= 0, show that sqrt x+b - sqrt x-a >= sqrt x+a - sqrt x-b

*May 1, 2016*

**trig**

tan(theta)/tan(2theta)-tan(theta)= cos(2theta)

*May 1, 2016*

**Biology**

Do you expect that somatic cell gene therapy and germ-line gene therapy for the same disease will be equally difficult?

*April 28, 2016*

**maths**

409 726 IN STANDARD EXPANDED NOTATION

*April 18, 2016*

**math**

The mean of 14 numbers is 50. Removing one of the numbers causes the mean to decrease to 43. What number was removed?

*March 23, 2016*

**math**

For a popular Broadway musical, the theater box office sold 356 tickets at $80 apiece, 275 tickets at $60 apiece, and 369 tickets at $45 apiece. How much money did the box office take in? A. $16,605 B. $44,980 C. $61,585 D. $16,500

*March 8, 2016*

**Chemistry**

An interference filter is to be constructed for isolation of the nitrobenzene absorption band at 1537 cm-1. (a) If it is to be based on first-order interference, what should be the thickness of the dielectric layer (refractive index of 1.34)? (b) What other wavelengths would ...

*February 27, 2016*

**chemistry**

For the reaction N2(g) + 3H2(g) 2NH3(g), what will happen if more ammonia gas is added?

*February 3, 2016*

**Math**

Yipee, thanks!

*January 7, 2016*

**Math**

Can someone help me complete this table? a - 5, 6, 7, 8, 9 b - 3.8, 4.6, 5.4, _, _ So, do you add 0.8 each time? I think the next two numbers are 6.2 and 7.0.

*January 7, 2016*

**math**

Can someone help me complete this table? a - 5, 6, 7, 8, 9 b - 3.8, 4.6, 5.4, _, _ I don't have any answers. I'm sorry. Is there a rule?

*January 7, 2016*

**physics**

a side view of a car tire before it is mounted on a wheel. Model it as having two sidewalls of uniform thickness 0.695 cm and a tread wall of uniform thickness 2.50 cm and width 23.2 cm. Assume the rubber has a uniform density 1.10 103 kg/m3. Find its moment of inertia about ...

*December 22, 2015*

**Chemistry**

How many g of CaCl2 are required to prepare 0.250 L of a 0.200 M solution?

*December 13, 2015*

**Social Studies**

Hey "Anon" you did a great job and yes you did answer correctly! ~Aaron Stern

*December 12, 2015*

**Math**

Samantha wants to find the height of a pine tree in her yard. She measures the height of the mailbox at 3 feet and its shadow at 4.8 feet. Then she measures the shadow of the tree at 56 feet. How tall is the tree?

*November 19, 2015*

**Math fractions**

A rectangle picture frame is made of wood stripes that are 3/4 inches wide the outside edge of the frame is 8 1/4 inches long and 6 3/4 inches wide can a rectangle picture that is 7 inches long and 5 1/2 inches wide fit inside the frame?

*November 19, 2015*

**physics **

A cat is chasing a mouse. The mouse runs in a straight line at a speed of 2.2 m/s. If the cat leaps off the floor at a 29° angle and a speed of 4.0 m/s, at what distance behind the mouse should the cat leap in order to land on the poor mouse?

*November 4, 2015*

**Chemistry**

Someone please help me, they're just practice questions but I need some help Hydrogen peroxide, H O , is used to disinfect contact lenses. What volume of O , in mL, of O (g) at 36°C and 741 mmHg can be liberated from 50.0 mL of an aqueous solution containing 3.00% H O ...

*October 23, 2015*

**Chemistry**

Now, my problem with this question is the break-down, I don't know where to start. Calculate the volume of H (g), measured at 21.9°C and 769 Torr required to react with 36.3 L CO(g), also measured at 21.9°C and 769 Torr. Assume the gases react as follows. 3CO(g) + ...

*October 23, 2015*

**Algebra 2**

Brandon is a retard for being in Statistics.... its 10*8C2*13

*October 21, 2015*

**chemistry**

0.0489 L

*October 19, 2015*

**algebra 2**

so in elimination you always add first, then subtract the for the next equation? thank you, Aaron

*September 30, 2015*

**algebra 2**

3x+y+z=14 -x+2y-3z=-9 5x-y+5z=30 linear equations solve by elimination

*September 30, 2015*

**math**

What are the important variables in the problem below? A test is worth 50 points. Multiple-choice questions are worth 1 point, and short-answer questions are worth 3 points. If the test has 20 questions, how many multiple-choice questions are there?

*September 28, 2015*

**science**

Describe how you would find the mass of 250mL of water

*September 22, 2015*

**Technology**

no they will need Microsoft powerpoint software to view the slides you have made

*September 21, 2015*

**chemistry HELP!!**

Reaction Rate = -(1/2) [d(H2O2)/dt] = [d(O2)/ dt] Using 25 mL of a 0.2 M hydrogen peroxide solution, the following results are obtained from the equation above: 8.62 mL of gas is collected in 120 seconds. (Assume 760 Torr = 1 atm) Room temperature is 25 degrees C and the vapor...

*September 21, 2015*

**Social Studies**

Just somebody from Washington State passing by

*September 15, 2015*

**Math**

On December 10, 2014, Jennings, Inc. paid out total dividends of $450,000 (this was the only dividend payment made during the year). If Jennings reported Retained earnings of $2,186,000 for 2013 and Retained earnings of $2,380,000 for 2014, what was Jennings reported net ...

*September 9, 2015*

**algebra**

An executive drove from home at an average speed of 45 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 120 mph. The entire distance was 250 miles; the entire trip took three hours. ...

*September 9, 2015*

**Computer**

Katie typed a paper using Microsoft Word. Microsoft Word is a type of software.

*August 27, 2015*

**Math**

A bag held 3 red marbles, 1 blue marble, and 4 yellow marbles. Lee drew a red marble and did not replace it. What is the probability of drawing a yellow marble next? A. 1/4 B. 1/3 C. 1/2 D. 4/7

*May 19, 2015*

**Technology in the classroom**

Microsoft Office

*May 7, 2015*

**algebra**

A package is dropped from a helicopter at 1600 feet. The height of the package can be modeled by: h = -16t squared + 1600 , where h is the height of the package in feet and t is the time in seconds. How long will it take for the package to hit the ground?

*April 13, 2015*

**math**

x: -2,-1, 0, 1, 2 ------------------- y: 9, 4,-1,-6,-11 find the function rule. please??

*March 30, 2015*

**language arts**

Satana is actually 100% correct but you should read the questions and answers because they switch them around sometimes

*March 18, 2015*

**Science for ms. Sue**

hey im here to help and uh Like bob said as you get closer the high voltage will jump as you have a short distance it will decrease so the answer is. B

*March 2, 2015*

**physics**

A 100kg shot putter is putting a shot 4kg. Just before he releases the shot, he is in the air (feet are off the ground). At this instant, the only force he exerts against the shot is an 800N horizontal force directed forward. a-what is his horizontal acceleration at this ...

*March 1, 2015*

**physics**

Grant accelerates a 1kg ball 5.0m/s2 horizontally. The vertical acceleration of the ball is zero. The force of gravity is the only external force acting on the ball other than the forces Grant exerts on it. a-How large is the horizontal force grant exerts on the ball at this ...

*March 1, 2015*

**Physics**

I don't understand how you got that solution. Could someone please elaborate? PLEASE

*February 21, 2015*

**physics**

A block of wood with a mass of 1300g is sitting on a horizontal tabletop. The coefficient of kinetic friction between the block and table is µk=0.74.A rifle bullet with a mass of 39g is fired horizontally into the block at a sped of 290m/s and stops inside the block. a-...

*February 19, 2015*

**Science**

This is pathetic okay fine all help you BUBBLES 1. A is the north pole and B is the south pole 2. the paper clips are within the magnetic field of the magnet 3. the two exposed sides of the magnets have similar poles 4. true

*February 19, 2015*

**PHYSICS**

A variable length air column (closed on one end) is placed just below a vibrating wire of mass 5.00g, which is fixed at both ends. The length of the air column is gradually increased from zero until the first position of resonance (first harmonic) is observed at 34 cm. The ...

*February 11, 2015*

**Chemistry**

A 76.00-pound flask of mercury costs $132.00. The density of mercury is 13.534 g/cm3. a) Find the price of one cubic inch of mercury by calculating the following intermediate values.

*January 28, 2015*

**Algebra 2**

Let f(x)-5x+3 and g(x)=6x-2 find the f x g and it's domain

*January 14, 2015*

**chemistry **

what quantity of ice would be melted by 2.80 x 10^3 calorie of heat.

*January 11, 2015*

**College Algebra**

Tiffany purchased a $10,000, 13-week Treasury bill that's paying 2.25%. What is the effective rate on this T-bill?

*January 8, 2015*

**Math**

Tiffany purchased a $10,000, 13-week Treasury bill that's paying 2.25%. What is the effective rate on this T-bill? A. 2.26% B. 2.2% C. 2.0% D. 2.7%

*January 5, 2015*

**Math**

Jill traveled to Canada and bought a new lamp for $460 Canadian dollars. In U.S. dollars (to the nearest cent) this is equivalent to

*December 28, 2014*

**music**

A. First

*November 18, 2014*

**Chemistry **

The question has been answered years ago but not how it is solved. I tried the combined gas law. Here is the question: A balloon originally had a volume of 4.39 L at 44 degrees celsius and a pressure of 729 torr. The balloon must be cooled ??? to reduce its volume to 3.78 L at...

*October 30, 2014*

**algebra**

Ms. Baldwin likes to eat cookies. She eats 3 cookies per day. After 5 days, there are 24 cookies left in the box. Write an equation represents the story in y=mx+b form

*October 28, 2014*

**algebra**

x-(15)=24 add 15 both side x=39

*October 28, 2014*

**algebra**

Ms. Baldwin likes to eat cookies. She eats 3 cookies per day. After 5 days, there are 24 cookies left in the box. Write an equation represents the story.

*October 28, 2014*

**math**

what is the expanded form for 408,032,009

*October 20, 2014*

**English**

So subject, verb direct object, and indirect object

*October 8, 2014*

**English**

Identify the sentence pattern used below. I e-mailed my English Teacher my essay. My answer is subject verb

*October 8, 2014*

**Algebra**

-z/3<= 6 My answer is z>= -18

*October 4, 2014*

**Algebra**

Thank you very much. We have been working with these and we learned that addition and subtraction the signs stay the same and change on multiplication and division

*October 4, 2014*

**Algebra**

-5y <= -15 My answer is y>=3

*October 4, 2014*

**Algebra**

thank you

*October 4, 2014*

**Algebra**

Everyone in my family uses this internet address so it's possible some else in the family used it. Thank you for your help.

*October 4, 2014*

**Algebra**

Ms. Sue, who is Sandy?

*October 4, 2014*

**Algebra**

How did that name get on my post? It is traveling at 30 ft per second and I used d=(110-30 ft) I formulated the start point at 2.3 seconds I'm just not sure of the duration or ending time.

*October 4, 2014*

**Algebra**

Start from 110 feet away, a person on a scooter rides towards a checkpoint and then passes it. At what times is the scooter 40 feet away from the checkpoint? My answer is 2.3 to 4.6 seconds

*October 4, 2014*

**Algebra**

Suppose U = 1,2,3,4,5,6,7,8 is the universal set and P = 1,3,5,7, What is P? My answer is 1,3,5,7

*October 4, 2014*

**Algebra**

If n is the set of natural numbers that are factors of 16, what is the set in roster form? My answer is 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16

*October 4, 2014*

**health**

Veins carry blood ________ the heart A. Away from B. Towards C. Neither A or B D. Both A and B c

*September 23, 2014*

**Chemistry**

The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium sulfate is added, a ...

*September 19, 2014*

**Chemistry**

CHO2^- + KMnO4 > CO3^2- + MnO2 How are you supposed to balance the equations since there is no K in the products?

*September 19, 2014*

**Chemistry**

The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium sulfate is added, a ...

*September 19, 2014*

**biology**

Which action is the best example of a direct observation?

*September 11, 2014*

**Geometry**

is 2 correct for X?

*September 1, 2014*

**Geometry**

ok, I got X = 2

*September 1, 2014*

**Geometry**

Point J is between H and K on line segment HK. use th given information to write an equation in terms of x. Solve the equation. Then find HJ and JK. HJ=(x/4) JK= 3x - 4 KH = 22

*September 1, 2014*

**math**

913 here belongs to the thousands period or group

*August 26, 2014*