Tuesday

June 30, 2015

June 30, 2015

Total # Posts: 3,137

**algebra**

Solve using qaudractic formula.Then use a calculator to approximate to three decimal places, the solution as rational numbers. X^2-4x+1=0
*February 15, 2011*

**algebra**

Solve using qaudractic formula.Then use a calculator to approximate to three decimal places, the onlution as rational numbers. X^2-4x+1=0
*February 15, 2011*

**Physics**

You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 56 km/h (35mph ). A new model of mass 1900 kg takes 0.15 s from the time of impact until it is brought to rest. 1. Calculate ...
*February 14, 2011*

**A U**

Answers: 1:4 2:4 3:4 4:2 5:1 6:3 7:4 8:4 9:1 10:4 11:3 12:1 13:2 14:4 15:3 16:2 17:3 18:3 19:4 20:3 21:1 22:2 23:2 24:3 25:2
*February 13, 2011*

**A U**

<11{1[4(17)17]}> Mrs. Orlof teaches two history classes, one in the morning and one in the afternoon. Yesterday she gave the same test to both classes. Anyone who failed the test must take a retest. Since a greater percentage of students who took the morning test failed ...
*February 13, 2011*

**algebra**

completetly factors the followin expression 4a^2-12ab+9b^2
*February 13, 2011*

**statistics**

It is well known that the heights of individual American men are normally distributed with mean 70 inches and standard deviation 2.8 inches. The Central Limit Theorem states that if n men are randomly chosen, then their average height will also be normally distributed with ...
*February 13, 2011*

**chem**

which of the following is insoluble (1)calcium chloride (2)ammonium phosphate (3)barium sulfate (4)potassium chromate
*February 10, 2011*

**Science**

in a true solution, the dissolved particles (1)are visible to the eye (2)will settle out on standing (3)are always solids (4)cannot be removed by filtration
*February 8, 2011*

**Math**

The following is a list of 11 measurements: -2,82,87,-1,-51,-2,53,87,-20,32,35 Suppose that these 11 measurements are respectively labeled . (Thus, is labeled , is labeled , and so on.) Round your answer to at least two decimal places.
*February 8, 2011*

**pre-algebra-is my answer right**

Today only, a desk is being sold at a 27% discount. The sale price is $219.00 . What was the price yesterday? Is it $300.00
*February 8, 2011*

**Thanks**

Thank You
*February 8, 2011*

**pre-algebra-is my answer right**

Graph -3x+4 My points are at (0,4) and (1,1)
*February 8, 2011*

**statisics**

A man rolls an ordinary die 6 times. What is the probability that he gets at least 5 threes? Round your answer to four decimal places.
*February 7, 2011*

**statisics**

I got 0.0001500
*February 7, 2011*

**statisics**

A man rolls an ordinary die 6 times. What is the probability that he gets at least 5 threes? Round your answer to four decimal places.
*February 7, 2011*

**Algebra**

Divide: (-8y^7x+15y^7x^6)/(-2y^2x^5) I got y^5(-8+15x^5)/-2x^4 It won't let me add parens. in the answer any suggestions. It does say simplify your answer as much as possible.
*February 5, 2011*

**intermediate algebra**

I got -y^5(15x^5-18)/2x^4 Is that right?
*February 5, 2011*

**intermediate algebra**

Divide: (-8y^7x+15y^7x^6)/(-2y^2x^5)
*February 5, 2011*

**intermediate algebra**

I got 20sqrt(2)-6sqrt(5)-2sqrt(10)+3
*February 5, 2011*

**intermediate algebra**

Multiply (2sqrt5 -1)(2sqrt10 -3)
*February 5, 2011*

**Algebra**

Find the slope of points (-2,2) and (2,1)
*February 5, 2011*

**Algebra**

thanks for the clarification I forgot to bring the 4 out as a 2
*February 5, 2011*

**Algebra**

Rewrite the following in simplified radical form. (sqrt24w^8) I got 4w^2sqrt6w is that right?
*February 5, 2011*

**Algebra- is my answer right**

I think it has to be written as m<= 80
*February 5, 2011*

**Chemistry**

what is the percent by mass of oxygen in propanal, CH3CH2CHO? the answer is 27.6 %. but i need to know why, please help !
*February 2, 2011*

**algebra**

list the terms, coeffcients, and degree of the following polynomial:x^4+6x^3-x+3/4
*February 2, 2011*

**algebra**

state the degree of the following polynomial : 2x^3y+7xy-9y
*February 2, 2011*

**algebra**

Bob's Barber shop estimates their gross revenue for the second qaurter to be given by the polynomial 9x^3+4x^2-6x+9. The shop estimates their costs for that quarter to be given by 7x^2+2x+1. For the second qauter,find and simplify a polynomial that will represent their profit
*February 2, 2011*

**math**

prime factorization of 980
*February 2, 2011*

**math**

5/7- 1/2 (1/3 + 3/7)
*February 1, 2011*

**algebra 1a**

Can you show me the step by step to solve -3(4y-2)<30?
*January 30, 2011*

**algebra**

y+x=-4
*January 30, 2011*

**mat/116**

solve by elimination method. 7r-2s=61 2r+7s=25
*January 30, 2011*

**Writing EASY BRAINSTORMING**

i want to known how to write it.
*January 30, 2011*

**7th Math**

Loises rate is 5 worfs per min sloer than coreys rate?
*January 30, 2011*

**7th Math**

If Loiuse can type 70 words in 2 minutes and Corey can type 120 words in 3 minutes, which statement is true?? Loises rate is 50 words per minutes slower than coreys rate or Louise rate is 5 words per minutes slower than coreys rate
*January 30, 2011*

**phys**

An airplane must reach a speed of 185 mi/h to take off. If the runway is 500 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully?
*January 30, 2011*

**math**

i mean 33/240.9
*January 28, 2011*

**math**

33 / 240.90
*January 28, 2011*

**math**

15/8 as a mixed number
*January 28, 2011*

**algebra**

Suzies flower shop estimates that supplies cost for one month will be given by the polynomial 3x^2+7x-3. She estimates the utilities costs for one month is given by 5x+2 Find and simplify an expression that would estimate suzie's total cost for one month.
*January 27, 2011*

**Math**

Solving First degree equations. 0.2x-0.3=0.1x+5 I am having a hard time entering this into my TI-84
*January 26, 2011*

**math**

simplify 4/5 - 1/2 (1/3 +3/8)
*January 25, 2011*

**math**

simplify 5/8 / 1/4 * 9/2
*January 25, 2011*

**math**

simplify 1/8 -(1/8)2 + (1/8)3
*January 25, 2011*

**math**

3 16/72+5 9/72= 8/25/72
*January 25, 2011*

**math**

8 25/72
*January 25, 2011*

**math**

Do I have to find the lcd first
*January 25, 2011*

**math**

find the average of 3 2/9 and 5 1/8 simplify and type a mixed number
*January 25, 2011*

**math**

13 1/48- 2 1/12+ 3 1/3 =13 1/48 - 2 1/48 =13 1/48 - 2 4/48 =12 49/48 - 2 4/48 =10 45/48 10 45/48 +3 1/3 10 45/48 + 3 16/48 =13 61/48
*January 25, 2011*

**math**

simplify and write answer as a mixed number 13 1/48 - 2 1/2 + 3 1/3
*January 25, 2011*

**math**

the second one with out the parentheses around it
*January 25, 2011*

**math**

3/2 / 4/5 + 1/2 * 1/2 Simplify
*January 25, 2011*

**math**

find the average 1/3 ,3/8 ,1/24
*January 25, 2011*

**math**

18/8
*January 25, 2011*

**math**

find the average 1/3 ,3/8 ,1/24
*January 25, 2011*

**math**

what is 164/24 as a mixed number
*January 25, 2011*

**math**

find the average 1/3 ,3/8 ,1/24
*January 25, 2011*

**math**

find the average 6 1/7 and 7 3/8
*January 25, 2011*

**math**

simplify 3/2 / 7/10 /5/2
*January 25, 2011*

**math**

69.5
*January 25, 2011*

**Psychology**

hello any opinions?
*January 25, 2011*

**Psychology**

help please?
*January 25, 2011*

**Psychology**

Information which comes to a neuron must arrive through its: (Points: 5) axons. glial cells. prefrontal area. dendrites its either the axons or dendrites im not sure any help please..its confusing
*January 25, 2011*

**chemistry - grade 9**

calculate the mass carbon monoxide, CO, that was needed to produce 78g of methanol, CH3OH, by the following reaction: 2H2 + CO -> CH3OH.
*January 24, 2011*

**chemistry**

sorry, typed incorrectly...will repost.
*January 24, 2011*

**chemistry**

calculate the mass carbon monoxide, CO, that was needed to produce 78g of methanol, CH3OH, by the following reaction: 2H2 + CO - CH3OH.
*January 24, 2011*

**algebra**

A dehydrated patient needs a 7.9% saline IV. Unfortunately, the hospital only has bags of 3% and 10% saline solutions. How many liters of each of these solutions should be mixed together to yield 3 liters of the desired concentration?
*January 23, 2011*

**algebra**

A dehydrated patient needs a 7.9% saline IV. Unfortunately, the hospital only has bags of 3% and 10% saline solutions. How many liters of each of these solutions should be mixed together to yield 3 liters of the desired concentration?
*January 23, 2011*

**algebra**

A dehydrated patient needs a 7.9% saline IV. Unfortunately, the hospital only has bags of 3% and 10% saline solutions. How many liters of each of these solutions should be mixed together to yield 3 liters of the desired concentration?
*January 23, 2011*

**Chemistry**

In a 100g sample of water, determine the amount of weight that is attributed to Hydrogen and to Oxygen. i found the mass ratio which is 2:16 & then reduced its 1:8. then i set up my equation. 1x+8x=100g 9x=100g x=11.11111111 or 100/9 then i have to substitute. 1(100/9)= 11....
*January 23, 2011*

**alegbra**

solve for, where u is a real number sqrt 9u - 10 = sqrt 5u + 16
*January 23, 2011*

**Chemistry**

In a 100g sample of water, determine the amount of weight that is attributed to Hydrogen and to Oxygen. i found the mass ratio which is 2:16 & then reduced its 1:8. then i set up my equation. 1x+8x=100g 9x=100g x=11.11111111 or 100/9 then i have to substitute. 1(100/9)= 11....
*January 23, 2011*

**Psychology**

ANY HELP PLEASE????
*January 22, 2011*

**Psychology**

In her lecture concerning scientific method, Dr. Smith insisted that each of the steps must be used in order to arrive at a scientific finding. She included directions to __________ in her list of necessary components. (Points: 5) form a question and design a procedure for ...
*January 22, 2011*

**Psychology**

THANK YOU VVERY MUCH
*January 22, 2011*

**Psychology**

Alexander, a fifth grade teacher, believes that Kimberly's behavior is a result of poor parenting. The school counselor is concerned with her inability to focus, attend to directions, and recall information from the previous day or events from earlier in the day. Alexander...
*January 22, 2011*

**chemistry**

What is the mass, in kilograms, of the air in a room that measures 14.0 \times\; 13.0 \times\; 9.5 {\rm{ft}}?
*January 22, 2011*

**american history (civil war)**

what was the trent affair and how was it settled?
*January 20, 2011*

**algebra**

there are 100 coins. ten are dimes. the rest are pennies and nickles. there are twice as many pennies as nickles. how many pennies and nickles are in the jar?
*January 17, 2011*

**Accounts**

On a worksheet, the adjusted balance of the Depreciation Expense account is extended to the __________ column. (Points: 5) Income Statement Debit Income Statement Credit Balance Sheet Debit Balance Sheet Credit I dnt understand what is meant by this any help please?
*January 16, 2011*

**Accounts**

hello anybody somebody???
*January 15, 2011*

**Accounts**

The Net Income amount from the Income Statement is used as a line item on which statement? (Points: 5) Profit and loss statement Statement of owner's equity Balance sheet Trial balance help please not sure what is meant by line item
*January 15, 2011*

**english**

Early in her life, Maude Gonne became a radical socialist and activist. what sentence pattern is this ?
*January 12, 2011*

**Math **

yes mx + B
*January 12, 2011*

**Math **

How do you get : x=1/3y+2 in the y=mxtb form ?
*January 12, 2011*

**Precalculus**

cos2x=cos(x+x)=
*January 10, 2011*

**Chemistry**

which substance takes the shape of and fills the volume of any container into which it is placed ? (1)H2O (l) (2)CO2(g) (3)I2(s) (4)Hg(l)
*January 9, 2011*

**Science**

thanks :)
*January 9, 2011*

**Science**

What occurs when a substance melts? 1) It changes from solid to liquid, and heat is absorbed. 2) It changes from solid to liquid, and heat is released. 3) It changes from liquid to solid, and heat is absorbed. 4) It changes from liquid to solid, and heat is released.
*January 9, 2011*

**math**

To which sets of numbers does the square root of 31 belog too
*January 9, 2011*

**psychology**

briefly describe the developmental needs (physical,cognitive,social,emotional,cultural) at each stage of development over the lifespan
*January 8, 2011*

**renting an apartment better option than buying a h**

outline
*January 8, 2011*

**Intro to Business**

The U.S. Supreme Court ruled that cities could have school voucher programs that give money directly to parents, who could then choose between competing schools, public or private. The idea was to create competition among schools. Like businesses, schools were expected to ...
*January 6, 2011*

**english**

too funny. to comes before a verb or noun, and too comes before adjectives
*January 6, 2011*

**chemistry**

Determine how many liters of nitrogen will be required to produce 87.0 liters of ammonia. The balanced equation for this reaction is: 3H2(g) + N2(g) ==> 2NH3(g).
*January 5, 2011*

**Algebra**

standard form is y=mx+b so you would have to distribute 4 into x+5 then add 2 to both sides to get the equation equal to y.
*January 5, 2011*

**ipc**

Since Kinetic energy is defined as (1/2)mv^2 thus if v was doubled the kinetic energy would quadruple (2^2).
*January 4, 2011*

**Statistics**

Suppose a study found a correlation coefficient r = -0.61 between the gender of a worker and their income. What can you conclude?
*January 4, 2011*