Thursday

December 8, 2016
Total # Posts: 1,592

**Math (Algebra)**

A chemistry student needs to make 60 liters of a 30% alcohol solution. He has a 20% alcohol solution and a 40% alcohol solution in the lab. How many liters of each strength does he need to mix together *The system of equations I did was: a+b=60 & .2a+.4b=18. I may be wrong but...

*November 12, 2016*

**social studies**

hey heyy i'm almost done taking the test! i'll give you the answers when i'm done?

*November 10, 2016*

**social studies**

do you have the answers? i really need help with this test! Thanks :)

*November 10, 2016*

**Vectors**

A fishing boat leaves port at 8 miles per hour at a bearing of 220? for 5 hours, then turns to a bearing of 270? at 11 miles per hour for 4 hours, and finally changes to a bearing of 300? at 9 miles per hour for 4 hours. At this point, the boat heads directly back to port at a...

*November 7, 2016*

**Math**

Jimmy opens a savings account with a $200 deposit at the beginning of the month. The account earns 4.6% annual interest compounded monthly. At the beginning of each subsequent month, Jimmy deposits an additional $200. How much will the account be worth at the end of 12 years?

*October 31, 2016*

**math**

An elementary school is offering 3 language classes: one in Spanish, one in French, and one in German. These classes are open to any of the 93 students in the school. There are 35 in the Spanish class, 31 in the French class, and 22 in the German class. There are 12 students ...

*October 30, 2016*

**Math**

Each student receives the same number of pencils and the same number of notebooks. This year she gave out 96 pencils and 72 notebooks. Which is the greatest number of students that can be in Ms. Thomas’s class this year?

*October 26, 2016*

**Calc answer check**

True or false If y =ax+b then DeltaY/DeltaX = dy/dx If Y= x+c then dy = dx If you can measure the length and width of a rectangle correct within .1 cm, then the calculated area will be correct within .1 cm as well. I have True for the first 2 and false for the last one.

*October 26, 2016*

**Math Help!**

Help me please. Not sure how to solve this. Can someone show me how to do it step by step. -2/5x-9<9/10

*October 21, 2016*

**Math**

In ΔABC, A=75 degrees and b=6. Giving your answer in interval notation, find the range of values of a such that: only one triangle is possible. two different triangles are possible. Please explain or show work!

*October 16, 2016*

**Math**

Henry walks out of his hall and proceeds to walk 160 feet due north. He then turns left (west) and walks 150 more feet. Finally, he turns 65 degrees left and walks 280 feet. How many feet is Henry from his starting point?

*October 16, 2016*

**chemistry**

Calculate the solubility of in water at a partial pressure of of 140. torr at 25°C. The Henry's law constant for is for Henry's law in the form C = kP, where C is the gas concentration (mol/L).

*October 5, 2016*

**chemistry**

What mass of glycerin (), a nonelectrolyte, must be dissolved in 200.0 g water to give a solution with a freezing point of –0.900°C?

*October 5, 2016*

**Math**

Match the inequality to its graph. Graph A. less than or equal to -1 Graph B. less than 3 Graph C. less than 1 Graph D. less than or equal to -3 7. 4y + 3 *less than or equal to* y+6 8. -2y > 2 9. y over 3 < -1 10. 3y *less than or equal to* 2y +3 Not sure? Help

*October 2, 2016*

**Music**

A triad that contains the notes A and C could also contain which of the following notes? F B E F or E

*September 30, 2016*

**Social studies**

What fundamental problem did noah Webster see in the Articles of Confederation? > that states would always work in their own self-interest even if it meant harm to the nation as whole > that the central covernment would always favor large states over the smaller states ...

*September 20, 2016*

**ALGEBRA**

Alewuya needs to mix a 20% acid solution with a 40% acid solution to create 100 millileters of a 24% solution. How many millileters of each solution must Alewuya use?

*September 11, 2016*

**Math**

i need your help becuase i don't get this and this is for homework i don't get

*September 9, 2016*

**Math**

What number am I 14 hundreds 5 thousands 8 tens

*September 8, 2016*

**math**

Dillan has a new cd with 6 songs on it. He puts it on random play. How many ways can the songs play ?

*August 28, 2016*

**Biology**

Which of the following properties of water would be most important in protecting a fish in a shallow pond on a hot summer day? A. the low density of water in the solid phase B. water's strong forces of adhesion C. the high specific heat of water D. water's solvent ...

*August 15, 2016*

**Biology**

1. Which of the following is not a characteristic of life? A. maintains homeostasis *** B. composed of cells C. composed of atoms D. carries out metabolism 2. Which of the following must be true to consider something to be alive? A. It must be able to replicate its DNA. B. It ...

*August 10, 2016*

**Science**

Which of the following is not a characteristic of life? A. maintains homeostasis B. composed of cells C. composed of atoms D. carries out metabolism C? Is that correct

*August 9, 2016*

**Litature **

The novel To Kill a Mockingbird features a main character named Scout. Scout is also the voice that tells the story. What point of view is used in the novel? A. first person B. third-person limited <--- C. third-person omniscient Is this correct

*August 9, 2016*

**Science**

Thanks

*August 8, 2016*

**Science**

Which of the following is true? Mark all that apply. A. a hypothesis can be proved incorrect through experiment B. conclusions cannot disprove a hypothesis C. conclusions are made based on the analysis of data D. opinion is used to analyze data Is it A and C?

*August 8, 2016*

**Science**

Thank you

*August 8, 2016*

**Science**

Which of the following are examples of science? Mark all that apply. A. a journalist writes a story about a man who became rich by buying stock on Tuesdays B.a woman chooses an item to purchase based on its packaging C. a farmer consults a weather almanac to decide the best ...

*August 8, 2016*

**Pre-Cal (Help Please!!!!)**

[Note: i need help really badly. I only have 2 hours left] Find all solutions of the following equations. Be sure to check for extraneous solutions. show work 1). 3cosθtan^(2)θ-cosθ=0 2). tan (3θ)+1=0

*July 12, 2016*

**Pre-Cal**

It says that i have to show work for each part. If any need my email so they can show me steps from a pic from their phone, It would really be appreciated

*July 12, 2016*

**Pre-Cal**

[Note: This one... is super hard for me :( I really need help. please. I only have 2 hours left and I have no idea what I'm doing!! Suppose that cosx= -3/5 and x is in the third quadrant, and that siny= 2/9 and y is in the second quadrant. Find the exact values 1). sinx 2...

*July 12, 2016*

**Pre-Cal**

[Note: I'm still having issues with identities with regard to trig] Verify the Trig. identities: (a). cot(x+y)=(cotxcoty-1)/(cotx+coty) (b). sin0(cot0+tan0)=sec0 [Note: 0=theta symbol]

*July 11, 2016*

**Pre-Cal**

Thank you so much!

*July 11, 2016*

**Pre-Cal**

[Note: i did these wrong apparently.. :( ] Simplify the trigonometry expressions as much as possible. (a). tan^(2)xsecx+secx (b).(csct-sint)/(csct)

*July 11, 2016*

**Pre-Cal:(Cont.)**

Thank you so much for your help!!! You're so awesome!!! :D

*July 11, 2016*

**Pre-Cal:(Cont.)**

[Note: I've tried this problem 4 times already and still have it wrong. I know the steps to doing it but for some reason its wrong. an someone please help me get these answers for (b).] An equation is given. (Enter your answers as a comma-separated list. Round terms to ...

*July 11, 2016*

**Pre-Cal**

An equation is given. (Enter your answers as a comma-separated list. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) 2 cos 2θ − 1 = 0 a). Find all solutions of the equations answer--> θ= (π+6nπ)/6...

*July 11, 2016*

**Pre-Cal (Help Plz!)**

Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) (tan^2θ-9)(2cosθ+1)=0 θ=__________________ I got 2π/3+2πn...

*July 11, 2016*

**Pre-Cal**

Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) cos θ = −1/2 1).θ= Answer-->(2π/3)+2πn, 4π/3+2πn 2). List six specific solutions a). b). ...

*July 11, 2016*

**Pre-Cal**

Find sin x/2, cos x/2, and tan x/2 from the given information. [1]. sin x = 5/13, 0° < x < 90° 1). sin x/2 =________. 2). cos x/2 =________. 3). tan x/2 =________. [Note: Plz help with these 3]

*July 7, 2016*

**Pre-Cal**

Find sin 2x, cos 2x, and tan 2x from the given information. [1]. sin x = 8/17, x in Quadrant I 1). sin 2x =________. 2). cos 2x =________. 3). tan 2x =________. [2]. sin x = -5/13, x in Quadrant III 1). sin 2x =________. 2). cos 2x =________. 3). tan 2x =________. [Note: I'...

*July 7, 2016*

**Pre-Cal**

Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number. (tan(74°)-tan(14°))/(1+tan(74°)tan(14°)) =__________ Find it's exact value (not decimal form) =__________ Note: A similar question(but with different ...

*July 7, 2016*

**Pre-Cal**

Write the trigonometric expression in terms of sine and cosine, and then simplify. 1). (csc θ − sin θ)/(cos θ) ____________. 2). Simplify the trigonometric expression. (cos u + 1)/(sin u) + (sin u)/(1 + cos u) ______________.

*July 6, 2016*

**Pre-Cal**

When you say "then 1/cos answer" are you saying 1/cos is the answer or is it just adjacent to the rest I'm confused

*July 6, 2016*

**Pre-Cal**

Write the trigonometric expression in terms of sine and cosine, and then simplify. tan u sin u + cos u _____________.

*July 6, 2016*

**Sociology**

What are the major differences between a functionalist or a conflict theorist when it comes to social class inequality?

*July 3, 2016*

**Math: PreCal**

Consider the function f(x)=-5cos((2/3)x-(pi/6)) a). Is there a reflection? Does the graph start at a maximum, a minimum, or an x-intercept? For Amplitude I got 5 For Period I got 3pi And for Phase shift I got 3pi/12 or => pi/4

*June 24, 2016*

**science**

A bicycle tire is filled with air pressure of 6 atm at a temperature 20 Degrees Celsius. Riding the bicycle on asphalt on a hot day at a temperature 42 degrees Celsius makes the volume of the tire increase by 2%. What is the new pressure in the bicycle tire?

*May 27, 2016*

**physics**

A rectilinear homogeneous conductor OA of mass 12 g and of length 36cm hangs freely from its upper end O while its lower end A slightly touches the surface of the mercury. Terminals C and D are connected to a generator which supplies a current 7.4A. A horizontal magnetic field...

*May 26, 2016*

**Math**

An initial investment in an account in which interest is compounded repeatedly is $813. If the time doubles the amount in 9 1/4 years, what's the annual rate going to end up being?

*May 16, 2016*

**Physics**

A hoop of radius 1.4 m and mass 11.5 kg has a small ball stuck to its inside surface. The ball has a radius of one quarter that of the hoop, and twice the hoop’s mass. The hoop may roll freely, without slipping. Similarly, the ball may roll along the inside of the hoop ...

*April 22, 2016*

**Physics**

In order to construct a fort in your backyard, it is critical that you calculate location of the centre of mass of three sticks in particular, each of which is identical with mass 2.5 kg. The first stick is located on the x-axis and is placed from x = 0 to x = 1.3 m. The ...

*April 22, 2016*

**Physics**

Calculate the distance, in m, of the centre of mass of the Earth-Moon system from the centre of the Earth. Note: the mass of the Moon is 7.35x10 22kg, the mass of the Earth is 5.98x10 24kg, and their separation is 3.85x10 8m.

*April 22, 2016*

**Math**

Can u explain the question to me Ms. Sue?

*April 20, 2016*

**Math**

I do not get what you are saying.

*April 20, 2016*

**Math**

Madison has 48 ft of fence with which to fence in a rectangular garden. What is the maximum area she can enclose?

*April 20, 2016*

** Chem**

When 3.00 g of butane, C4H10, are combusted in a calorimeter containing 800. g of water, the temperature of the water changes by 44.4 °C. What is the heat of combustion of butane in kilojoules per mole? The molar mass of butane is 58.123 g/mol. The specific heat of water ...

*April 19, 2016*

**Math**

)ne canned juice drink is 25% orange juice; another is 55% orange juice. How many liters of each should be mixed together in order to get 20L that is 21% orange juice?

*April 19, 2016*

**Social Studies**

Which of the following are educational improvements made in Georgia after World War II? Link please.

*April 12, 2016*

**Social Studies**

Which of the following industries is not a current leading contributor to the economy of mordern Georgia? agriculture manufacturing tourism retail A?

*April 12, 2016*

**Math **

4^4x4^6 A.4^2 B.4^6 C.4^10 D.4^24 Help?

*April 12, 2016*

**Math Help!**

Simplify the expression 7^9/7^3 A. 7^3 B. 7^6 C. 7^12 D. 1^6 Help?

*April 12, 2016*

**Math Help!**

Thanks Reiny for your help :)

*April 12, 2016*

**Math Help!**

For number 1 I'll go with b because it has to be one of them..on 2 I would go with D?

*April 12, 2016*

**Math Help!**

Multiply the following polynomials 1. 2a(a^2+4^a) A. 2a^2+6a^2 B. 2a^3+8a^2 C. 2a+6a D. 2a^3+6a^2 2. (3y)(3y-2) A. 9y^2-6 B. 9y^2+5y C. 9y^2+1 D. 9y^2-6y Not sure? I'm not asking anyone to give me the answer but I don't know how to do this.

*April 12, 2016*

**Social Studies**

Which of the following materials creates the glossy look on a magazine page? link please.

*April 11, 2016*

**science**

I believe the angle of refraction will be ___________ when it goes from a ________ to a _______________ because ____________________________________. I have this on a question and I'm not sure how to answer it. Help?

*April 11, 2016*

**Social Studies**

How can personal finance decisions affect the economy? Link please. Thanks :)

*April 5, 2016*

**Math**

Rectangular Prism: Length: 41 ft Width: 32 ft Height: 49 ft 1. Find the surface area for the given prism. 7,154 ft^2 2,624 ft^2 9,778 ft^2 8,432 ft^2. Help please because I'm not sure.

*April 5, 2016*

**Math**

Thank you both!

*March 30, 2016*

**Math**

Find the surface area of a sphere with a radius of 12 m. A. 1,809 m^2 B. 452 m^2 C. 7,235 m^2 D. 603 m^2 Not sure? Please help!

*March 30, 2016*

**Social Studies**

Which of the following were significant features of Jimmy Carter's political career? Link Please?

*March 30, 2016*

**Social Studies**

What caused the civil rights movement to gain momentum? Link Please to help?

*March 24, 2016*

**Social Studies**

Which of the following was a cause of world war 2? A. the rise of democracy in europe B. the united states becoming an ally with great britain *** C. the rise of fascist governments in europe D. the holocaust D? Not sure.

*March 24, 2016*

**S.S**

Which of the following was an effect of World War II? A. The American economy worsened after World War II. B. African American military personnel were accepted into white society as equals. C. The American economy improved after World War II. D. The Axis powers dominated ...

*March 23, 2016*

**Social Studies**

A system in which a series of workers and machines work to add individual parts to a product is known as a(n)____and it_____. Link please to help me?

*March 23, 2016*

**science**

If the number of loops on an electromagnet increases, the strength of the magnet will?

*March 17, 2016*

**Math**

Nine less than the product of 2 and a number is 4

*March 16, 2016*

**Social studies**

Which of the following were effects of the Holocaust? (Choose all that apply) A. Hitler's "final solution" successfully reached its goal. B. Six million Jews were killed by the Nazis. C. Jews in Georgia worked on fighting anti-Semitism at home. D. Some Jewish ...

*March 16, 2016*

**Social studies**

How did World War 2 affect life in Georgia? (Choose all that apply.) A. More Georgians were out of work than ever before B. Many people moved to the North or West C. People made sacrifices for the war effort. D. African american Georgians moved to the North looking for work. ...

*March 16, 2016*

**English**

Which sentence is written correctly? A) I like chocolate,gum,dr.pepper, and sleeping. B) I eat C) Where are we going. D) I'm hungry!

*March 15, 2016*

**Math**

what is the value of the missing angle? (I don't know what you call this shape but its like drawing a house on paper but its upside down ex: the triangle is on the bottom and the square is on top. where the triangle is theres a number 140 on each side and the point part ...

*March 15, 2016*

**Math**

what is the area of the triangle? (its a scalene obtuse triangle) height 4.5 ft base 8.7 ft A. 13.2 ft^2 B. 19.575 ft^2 C. 20.25 ft^2 D. 39.15 ft^2

*March 15, 2016*

**Math**

Thanks

*March 15, 2016*

**Math**

105 in^2?

*March 15, 2016*

**Math**

what is the area of the parallelogram? Bottom base 15 in height 7 in A. 105 in^2 B. 110 in^2 C. 52.5 in^2 D. 210 in^2

*March 15, 2016*

**Social studies**

Why were military and the defense industry important to Georgia? I'm not sure?

*March 14, 2016*

**Social studies**

Thanks

*March 14, 2016*

**Social studies**

What was the impact of the New Deal programs on Georgians? Can anyone give me a link to help me?

*March 14, 2016*

**math**

marta is a sales associate at a perfume shop.she earns 400 a week plus a 4% commission on sales.write an inequality to find the minimum amount that she needs to sell to earn at least $460 in a week?

*March 14, 2016*

**Chemistry**

why does the FeCl3 test positive for phenols and not other -OH compounds?

*March 7, 2016*

**Math**

Wait that's all I have to do? Then I know how now thanks

*March 7, 2016*

**Math**

Sorry yes that's what I meant. How do I get the answer? I'm slow at math sorry

*March 7, 2016*

**Math**

1. Find the area of the triangle. Bottom is 22 ft and inside the triangle is 7 ft. A. 154 ft^2 B. 58 ft^2 C. 77 ft^2 D 38.5 ft^2 Not sure?

*March 7, 2016*

**Social studies**

Thanks again :)

*March 2, 2016*

**Social studies**

What was significant about the election of 1932? (Choose all that apply) A. The American people were satisfied with Hoover's policies. B. The American people re-elected Hoover with an overwhelming majority. C. Roosevelt promised bold action, unlike hoover. D. Roosevelt ...

*March 2, 2016*

**Social studies**

Thank You So much for your help!

*March 2, 2016*