Friday

January 30, 2015

January 30, 2015

Total # Posts: 775

**history**

Did JFK avert the Cuban MIssile crisis?
*April 9, 2014*

**algebra 2**

if someone offers to pay you 1 penny on the first day, 2 pennies on the second day, 4 pennies on the third day, 8 pennies on the fourth day, 16 pennies on the fifth day ad so on. What is the first day on which your pay would be at least $100.
*April 9, 2014*

**Algebra**

Area = 15x^3 + 25x^2 what is the length and width of the rectangle?
*April 9, 2014*

**algebra 2**

Lizette drops a ball from a height of 256 feet. The peak height after each bounce is 75% the previous height. How much vertical distance does the ball travel from the time she drops it until it touches the ground after its fourth bounce
*April 9, 2014*

**algebra 2**

Mr Brown salary is $32,000 and increases $300 each year. Write a sequence showing the salary for the first 5 years. When will he make over $34,700.
*April 9, 2014*

**algebra 2**

Reiny I do not understand where you got the numbers from in the sigma question on Sunday . Where did you get the number 27 from and where did you get -10. What is the formula you used.
*April 9, 2014*

**Algebra**

Area = 15x^3 + 25x^2 what is the length and width of the rectangle?
*April 8, 2014*

**math**

if a 30 ft ladder makes a 65 degree angle with the ground, how many fee up the wall will it reach
*April 8, 2014*

**algebra 2**

sigma upper limit 28 algebraic expression (8i-13) lower limit 1 index=i
*April 6, 2014*

**algebra 2**

what is the sum of the first 11 terms of the arithmetic series in which asub one = -12 and d=5
*April 6, 2014*

**algebra 2**

What is the sum of the first 60 positive integers?
*April 6, 2014*

**Civil War**

3.) The issue of the Mexican War divided the North and South
*April 5, 2014*

**History**

The Missouri Compromise settled one dispute, but contained a provision that began another battle
*April 5, 2014*

**algebra 2**

what is the 10th term of the sequence -62, -47, -32, -7, -2
*March 30, 2014*

**Behavior**

Animal researchers refer to the process of filtering out sights, scents, and sounds that have little impact on survival as A. desensitizing. B. nurturing. C. aggression. D. habituation
*March 22, 2014*

**math**

Jessica earns $53.35 in 5.5 hours. How much does Jessica earn in 1 hour?
*March 22, 2014*

**algebra**

if 6 notebooks + 2 binders = 23.52 ans 3 notebooks + 4 binders = 25.53 how do I solve to find out what the notebooks and binders each cost?
*March 20, 2014*

**Statistics **

A random sample of 150 towns in a western state had a mean annual precipitation of 2.86 inches. Assume that the population standard deviation is known to be 0.78 inches. Compute the 95% confidence interval for μ.
*March 19, 2014*

**Math**

27 -the known sides and that is your answer
*March 18, 2014*

**World Geography**

OPEC was formed in 1960 in order to
*March 15, 2014*

**accounting**

A bauxite mine was acquired at a cost of $1,500,000 and estimated to contain 6,000,000 tons of ore. During the year, 95,000 tons were mined and sold. Prepare the journal entry for the year's depletion expense.
*March 1, 2014*

**accounting**

Uncollectible Accounts—Percentage of Sales Ryan's Express has total credit sales for the year of $178,000 and estimates that 3% of its credit sales will be uncollectible. Record the end-of-period adjusting entry on December 31, in general journal form, for the ...
*March 1, 2014*

**math**

Joe spent 25% of his money on food. He spent 25% of the remainder on drink. He had $9 left. How much money did Joe have to start?
*February 28, 2014*

**Algebra**

Eye color is determined by genetic combination. Let R represent the gene for brown eyes and l represent the gene for blue eyes. Any gene combination including R represents browns eyes. Consider the offspring of a parents with homozygous brown-eyed, RR, gene combo and a parent ...
*February 22, 2014*

**Algebra 1**

I'm workin on the same stuff.. lol
*February 22, 2014*

**Algebra 1**

Thank you, Steve.
*February 22, 2014*

**Algebra**

I was asked to use factoring and the zero-product property to solve the following problems. Can you please check my answers? Thank you. z(z - 1)(z + 3) = 0 is already factored, so one of the factors must be zero for the product to be zero. Taking them in turn: z = 0 z - 1 = 0 ...
*February 22, 2014*

**Algebra**

Thanks. :) I think I got it now. You rock.
*February 20, 2014*

**Algebra**

Use factoring and the zero-product property to solve the following problems: z(z - 1)(z + 3) = 0 x^2 - x - 10 = 2 4a^ - 11a + 6 = 0 9r^r - 30r + 21 = -4 Please show work. Thank you so much!
*February 20, 2014*

**Algebra (Reiny)**

Ok... I tried to figure these out. This is what I got. Will you check my work? 1). 4x^2 - 8x - 12 + 6x = 4x^2 - 2x -12 = 2(2x + 3)(x - 2) 2). 144 - 9p^2 = 9(16 - p^2) = -9(p^2 - 4^2) = -9(p + 4)(p - 4) 3). 5c^2 - 24cd - 5d^2 = (5c + d)(c - 5d) 4). w^2 - 17w + 42 = (w - 3)(w + ...
*February 20, 2014*

**Algebra**

Can you please help me factor these expressions? Completely factor the following expressions. Please show work. 4x^2 - 8x - 12 + 6x 144 - 9p^2 5c^2 - 24cd - 5d^2 w^2 - 17w + 42 256z^2 - 4 - 192z^2 + 3 2a^2 c^3 - 14bc^3 + 32c^3 d^2 35g^2 + 6g - 9 3j^3 - 51j^2 + 210j Thank you ...
*February 20, 2014*

**Algebra**

Thanks Damon and Reiny for your help!
*February 20, 2014*

**Algebra**

Hiya. I have 7 expressions that I have been asked to simplify. I worked all of them out, and if you could, I'd like you to check my work for me. Here they are: 1. (x^2 + 3x - 9) + (-4x^2 + 2x - 3) My answer: -4x^4 + 5x - 12 2. (x - 2)(3x + 5) My answer: 3x^2 - 30x - 10 3...
*February 20, 2014*

**algebra 2**

Which values best approximate the solutions of x squared -4x -3.5 = 0.
*February 18, 2014*

**algebra2**

A parabola has a vertex (4,2) and contains the point (-2,26). what is the equation of the parabola?
*February 18, 2014*

**algebra2 **

What is the solution set of 4x squared -3 = 11
*February 18, 2014*

**algebra**

Where is the vertex of the graph of y = -x squared + 4x + 5
*February 18, 2014*

**algebra2**

What is the quadratic function of f(x)=4(x-1)squared +3 in standard form?
*February 18, 2014*

**algebra**

If Jackson drops a ball from a building at the height of 80 meters. What is the height of the ball to the nearest tenth of a meter exactly 3 seconds after he drops the ball.
*February 17, 2014*

**Math**

2 5/6
*February 6, 2014*

**Principles of Macroeconomics **

Which of the following is the largest source of funds for the federal government? I am thinking either (B) OR (D) a. property taxes b. borrowing c. excise taxes d. income taxes e. tariffs
*February 2, 2014*

**Algebra**

What would the solution to this system of equations be? y = x - 50 y = 0.6x I got (138.8, 83.3), but that doesn't seem right at all.
*January 27, 2014*

**Math**

Thank you very much.
*January 27, 2014*

**Math**

Here is the problem: Christopher orders a three topping pizza for $15.25, and a 5 topping pizza for $17.75. Write and solve a system of linear equations to find the price of a plain cheese pizza (no toppings) and the cost of each topping. I used the method of elimination to ...
*January 27, 2014*

**Algebra 1**

An online camera retailer currently offers a 40% discount on cameras. Write a function relating a camera's purchases price, y, to the retail price, x. Give the domain of this function. I'm really stuck on this problem. Thanks so much for your help.
*January 27, 2014*

**Bobby**

Find the length (in cm) of an arc of a circle with radius 12 cm if the arc subtends a central angle of 30°.
*January 19, 2014*

**math**

it has a slope of -3 the line that passes through the point (2, -5)
*January 19, 2014*

**math**

Sorry I meant Find an equation for the line that passes through the point (2, -5) and is parallel to the x-axis Find an equation for the line that passes through the point (2, -5) and is parallel to the y-axis Find an equation for the line that passes through the point (2, -5...
*January 19, 2014*

**math**

Find an equation for the line that passes through the point (2, -5) and is parallel to the x-axis and is parallel to the y-axis and is parallel to the line 2x - 4y = 3
*January 19, 2014*

**Business Law 311**

PLEASE someone check these for me, Thanks.. Delta Inc. offers to sell Omega Corp. a packaging machine. Omega responds “We’ll take it but only if there is a six-month warranty.” Which of the following is true? There is a contract, and Omega has a six-month ...
*December 8, 2013*

**Child development**

If a child and mother or child and father or just a teen was being abused what kind of resources would they look for? What are the resources? Would one be like the community center. Well that's if they offer support for child abuse or even domestic abuse.
*November 7, 2013*

**english 12**

i am doing a summary on geoffrey nunberg reimagining america i don't know where to start
*November 4, 2013*

**Biology **

"Quiglilies" are a rare variety of flower. They have one allele for orange petal colour O. They also have another allele for white petals W. These alleles have a co-dominant relationship producing a yellow petal colour. i) what are the possible genotypes and ...
*November 1, 2013*

**Biology**

The production of a polypeptide involves the correct sequencing of amino acids, originally encoded by a segment of DNA. This code is transcribed onto mRNA and subsequently translated using tRNA. From the following DNA segment, record the base sequence that would be encoded on ...
*November 1, 2013*

**PHYSICS**

The magnetic field of the Earth at a certain location is directed vertically downward and has a magnitude of 54.0 µT. A proton is moving horizontally towards the west in this field with a speed of 6.00 ✕ 106 m/s. (a) What is the direction and magnitude of the ...
*October 29, 2013*

**PHYSICS**

A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field.
*October 29, 2013*

**chemistry**

Im stuck on these few questions that seems to be getting me no where : c HCl = 0.1812 c NaOH = 0.1511 volume of HCl added : 75 volume of NaOH added: 29.23,19.58,33.3 -Determine the number of mmoles of HCl that did not react with the anatacid. - mmoles of HCl neutralized by the...
*October 8, 2013*

**chemistry**

acid rain --how does it cause environmental and health problems
*September 13, 2013*

**chemistry**

what volume of 16 sulfuric acid must be used to prepare 1.5 L of a 0.10 M H2SO4 solution
*September 13, 2013*

**chemistry**

what is the configuration of an electron
*September 13, 2013*

**chemistry**

what law allows us to calculate a change in volume when the temperature changes , but the pressure is held constant
*September 13, 2013*

**chemistry**

how much oes 3.10cm3 of copper weigh
*September 13, 2013*

**chemistry**

conver 0.100Kg to g
*September 13, 2013*

**chemistry**

conver 0.100Kg to g
*September 13, 2013*

**chemistry**

conver 0.100Kg to g
*September 13, 2013*

**chemistry**

given an atmospheric pressure of 750mm Hg, find the partial pressures of nitrogen, oxygen. carbon dioxide and argon
*September 13, 2013*

**law**

If you are in college go to the university library and ask a reference librarian. They are wonderful ad will teach you how to do research correctly. In the mean time, go to Google Scholar and type in Miranda Rights in the first field and supreme court in the second field. ...
*September 7, 2013*

**English**

What is the simple subject of the following sentence: A large number of swimmers competed in the race.
*September 6, 2013*

**math**

0.625 divided by 6.5
*September 4, 2013*

**Algebra 1**

How do you solve sentence problems
*September 1, 2013*

**trig**

the base of a trapezoid are 22 and 12 respectively. the angle at the extremities of one base are 65 degree and 45 degree respectively. find two legs?
*July 31, 2013*

**Finance**

Assignment 8.1: Capital Budgeting Application You have just graduated and one of your favorite courses was Financial Management. While you were in school, your grandfather died and left you $1 million. You have decided to invest the funds in a fast-food franchise and have two...
*July 23, 2013*

**Finance**

28.57
*July 7, 2013*

**statistics**

A senator asks his constituents to rank seven issues in order of importance. How many rankings are possible?
*July 1, 2013*

**Math**

if 2 meters of a wire weigh 24.8 grams, how much do 6 meters of wire weigh?
*June 11, 2013*

**Physics (ASAP)**

Please I need help. I don't know how to do this problem without the SPEED VALUE. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? _______ kg Thank you.
*May 3, 2013*

**Physics (ASAP)**

Please, I need help with this problem A cue stick applies an average force of 66 N to a stationary 0.17 kg cue ball for 0.0012 s. What is the magnitude of the impulse on the cue ball? Thank you
*May 3, 2013*

**Physics (ASAP PLEASE)**

Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you
*May 3, 2013*

**Physics**

Can anyone please help me with this question? I don't understand why the speed is v m/s. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? Thanks I know that I have to use the ...
*May 2, 2013*

**Physics**

Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you
*May 2, 2013*

**Physics (Momentum)**

Please help me answer this problem.How do I answer this if I don't have the mass of the monkey and the scooter together? At a circus animal training facility, a monkey rides a miniature motorscooter at a speed of 7.0 m/s. The monkey and scooter together have a mass of m kg...
*May 2, 2013*

**Physics (Momentum)**

Please help me answer this problem.How do I answer this if I don't have the mass of the monkey and the scooter together? At a circus animal training facility, a monkey rides a miniature motorscooter at a speed of 7.0 m/s. The monkey and scooter together have a mass of m kg...
*May 2, 2013*

**Physics (Momentum)**

Can anyone please help me with this question? I don't understand why the speed is v m/s. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? Thanks I know that I have to use the ...
*May 2, 2013*

**Physics (MOMENTUM)**

Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you.
*May 2, 2013*

**Math**

99440
*May 1, 2013*

**Math**

A national study reports that 20% of college freshman have GPA above 3.5. We wish to determine if the corresponding proportion is higher at a local university. To conduct the test we select a random sample of 100 freshmen and determine that 26 of them have GPA above 3.5. Run ...
*April 30, 2013*

**math**

what is the slope and y-intercept for y=-2/3x -4.3
*April 22, 2013*

**physics (Newton"s law of gravitation)**

Please, can someone help me with this? A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×1030 kg and the black hole has a mass of 9.94×1030 kg. What is the magnitude of the ...
*April 21, 2013*

**Physics (Electric fields and Coulomb's Law)**

I need help with this question please. An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized, and has a charge of +e. If the field meter reads 0.000000202 N/C, how far away is it from the ion? _________ m Thank you
*April 21, 2013*

**Physics (Electric charge for charged rods)**

I need help with this question, please. What is the direction of the force between (a) two particles whose charges are the same sign and (b) two particles of opposite sign? (c) What happens to the magnitude of the force when the distance between two particles is increased? ...
*April 21, 2013*

**physics (Newton's law of gravitation)**

Can anyone please help me with this question? I am really confused. A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×1030 kg and the black hole has a mass of 9.94×1030 kg. What is...
*April 21, 2013*

**Physics (G and g)**

Please, I need help with this problem. I would really appreciate it. The top of Mt. Everest is 8850 m above sea level. Assume that sea level is at the average Earth radius of 6.38×106 m. What is the magnitude of the gravitational acceleration at the top of Mt. Everest? ...
*April 21, 2013*

**Electric fields and Coulomb's law**

Please, I need help with this question. An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized, and has a charge of +e. If the field meter reads 0.000000202 N/C, how far away is it from the ion? Answer:__________ m Thank you.
*April 21, 2013*

**Electric fields and Coulomb's law**

Can anybody please help me with this question? Two friends are playing a version of proton golf where the hole is marked by a single proton. The first friend reads his meter, and declares he has a field strength of 27.5 N/C. The second friend looks at her meter and realizes ...
*April 21, 2013*

**Electric charge and Coulomb's Law**

Can anyone help me explain this problem? Your help is appreciate it. You are given an apple and an orange. The apple has a net charge of +3×10−17 C. The orange has a net charge of −3×10−17 C. With only this information, can you determine which one...
*April 21, 2013*

**physics (Newton"s law of gravitation)**

Could anyone please help me with this problem? I would really appreciate it. The top of Mt. Everest is 8850 m above sea level. Assume that sea level is at the average Earth radius of 6.38×106 m. What is the magnitude of the gravitational acceleration at the top of Mt. ...
*April 21, 2013*

**Uof Phoenix**

6x=12
*April 19, 2013*

**one more**

thanks so much! what about 4xsquared + 4x - 3= 0
*April 9, 2013*

**math (Reiny please)**

how would i do these problems: 6. xsquared + 2x -7 =0 7. 6xsquared - 2x -1 = 0
*April 9, 2013*

**science**

can you simply explain what happens to ice that breaks off a glacier that lands in the water
*April 2, 2013*

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