Friday

May 27, 2016
Total # Posts: 249

**mathematics-equadratic equation**

16
*April 6, 2016*

**math**

Given the equation of a closed curve is x^2-2x+4y^2+16y+1=0.Find the coordinates of the two points where the lines tangent to the curve are vertical.
*December 11, 2015*

**Calc**

A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.3 cm/min. At what rate is the volume of the snowball decreasing when the diameter is 13 cm. (Note the answer is a positive number).
*November 20, 2015*

**Algebra**

It's not a typo, that's exactly how the question was asked.
*September 5, 2015*

**Algebra**

Does an inequality of the form ax > b always, sometimes, or never give a solution of the form x > c? Give examples to support your answer.
*September 5, 2015*

**Algebra**

it should be divided by 4, divided by 7, divided by 28 underneath those dashes
*September 3, 2015*

**Algebra**

(6x−7) (3x-5) (5x+78) ------ + ------- = ------- 4 7 28 How do you solve for the answer? Explain each step.
*September 3, 2015*

**Algebra**

The revenue in dollars from a school play is given by the expression 5x+2y, where x is the of adult tickets sold and y is the number of student tickets sold. If the revenue is $220, find the x- and y- intercepts and explain what they represent in the context of the problem.
*September 3, 2015*

**math**

At a zoo, 1/3 of the animals are birds, 4/9 are mammals, and the rest are reptiles and amphibians. What fraction of animals at the zoo are reptiles and amphibians?
*June 17, 2015*

**History**

try open study
*June 12, 2015*

**math algebra 1**

The length of a rectangle is 2 m less than the diagonal and the width is 8 m less than the diagonal. If the area is 82 m2, how long is the diagonal?
*May 26, 2015*

**Math**

1.5 is correct thanks
*January 20, 2015*

**Math**

5.3x+2-4.1x=3.6x-1.6 My answer x=1.5
*January 20, 2015*

**Math**

I changed the fractions to 4x-3x=28-6
*January 20, 2015*

**Math**

Thanks
*January 19, 2015*

**Math**

12m+12=6(3m+3) My answer is -6= -6 which is identity ??? Or is it null or empty??
*January 19, 2015*

**Math**

Fiona earns $15 for each lawn she mows. What is the inequality to find out how many lawns she must mow to earn at least $135. My answer 15m <_ 135 M<_ 9
*January 14, 2015*

**Math**

Thanks
*January 14, 2015*

**Math**

8x+5=4x-7 I put x=-3
*January 14, 2015*

**Algebra 2**

ass
*December 9, 2014*

**preventing injury**

why is it important to get a medical check up prior to beginning a fitness program?
*December 6, 2014*

**biology**

Aquatic organisms: A. have a waxy coating to prevent water loss B. may experience problems with water balance C. typically have a plentiful supply of nitrogen. D. never find light to be in short supply
*October 9, 2014*

**sociology**

micro-level is wrong!!
*October 8, 2014*

**sociology**

conflict-theory
*October 8, 2014*

**Math**

Someone please help with this problem
*September 22, 2014*

**Quantitative Reasoning (math)**

x=25
*September 10, 2014*

**physics**

help
*April 9, 2014*

**science/physics**

If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into potential energy to make it swing back. The ...
*February 9, 2014*

**physics/science**

If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into potential energy to make it swing back. The ...
*February 9, 2014*

**science**

Where can I find information on Energy reformation for a middle school student to understand?
*February 1, 2014*

**math**

In asheville north carolina in August the temperature is an even number less than 40 that has the same number of tens and ones Answer: Could it be 22 4 tens and 0 ones = 4 2 tens and 2 ones = 4
*January 29, 2014*

**math**

Could it be 22? 2 tens and 2 ones has the same as 4 tens and 0 ones
*January 29, 2014*

**math**

In Asheville North Carolina in August the temperature is an even number less than 40 that has the same number of tens and ones Ans: 34
*January 29, 2014*

**vocabulary**

Has the ability of human beings to produce new inventions (quenched, outstripped) our ability to use them wisely Ans... outstripped
*January 23, 2014*

**vocabulary**

Has the ability of human beings to produce new inventions (quenched, outstripped) our ability to use them wisely Ans... outstripped
*January 23, 2014*

**vocabulary**

As we returned to the dressing room after that terrible first half, the whole atmosphere seemed to be (pervaded, capsized) by defeat. Ans. capsized?? With eager students and able teachers, learning will (flourish, outstrip), even though the school building may be old and ...
*January 23, 2014*

**criminal law**

a bail bondsman fee is usually what percentage of the set bail
*January 12, 2014*

**lang arts**

thanks
*January 6, 2014*

**lang arts**

List common nouns Anne Morrow Lindbergh soon shared his love of aviation. Answer: love & aviation question: Is shared a common noun also?
*January 6, 2014*

**math**

How do I find the 3rd side of a triangle if I am given 2 sides and there is no mention if it is a right triangle?
*January 5, 2014*

**math**

it is 10 degrees outside and the temperature is due to drop 16 degrees. what will be the temperature the
*December 10, 2013*

**Physics Part 2**

Rick's next shot isn't as good. She hits the cue ball with a velocity of 5.6 m/s and it hits the 4 ball. The cue ball bounces off at a 45 degree angle off it's original path at a speed of 3.5 m/s. What is the velocity of the 4 ball? ---So all i know is the momentum...
*November 10, 2013*

**Physics Part 1**

Okay, so i did my math wrong sorry and thx Steve!! and bobpursley, does that mean the cue ball is traveling .27 m/s straight?? because usually they want angle but since it's head on it's just straight rite?
*November 9, 2013*

**Physics Part 1**

Rick is playing billiards and hits the cue ball. It makes contact with the 8 ball head on. If before the collision the cue ball was travelling at 2.4 m/s and after the collision the 8 ball was traveling at 2.13 m/s. How fast and in what direction is the cue ball traveling? (...
*November 9, 2013*

**chemistry**

Three solutions are mixed together to form a single solution. One contains 0.2 mol \rm mol Pb(CH 3 COO) 2 \rm Pb(CH_3COO)_2, the second contains 0.1 mol \rm mol Na 2 S \rm Na_2S, and the third contains 0.1 mol \rm mol CaCl 2 \rm CaCl_2. Write the precipitation reaction.
*October 19, 2013*

**math**

1.17
*October 17, 2013*

**Statistics**

Problem 2 the answer is 4.5% You now the correct answer for the problem 7?
*August 10, 2013*

**Statistics**

this test is easy listen the videos and do the exercises of those videos and it's easy. If you have any doubt just ask.
*August 4, 2013*

**Statistics**

Mean=300*0.5=150 SD=SQRT(300*0.5*(1-0.5))=8.66 Z=+/- (170.5-150)/8.66 = +/- 2.37 Table of Z P= 2*0.0089 = 1.78% +/- because we have two-tailed and multiple the value of P by 2 for the same reason
*August 2, 2013*

**Statistics**

thanks :) had achieved good luck to the course excuse the English'm from Portugal
*August 2, 2013*

**Statistics**

you know the correct answer to the problem 2 and 6 of the test? The P-value (problem 8) is 1.78 (it is correct)
*August 2, 2013*

**Hypothesis-Test**

EDX b? are you sure?
*July 31, 2013*

**Stats**

try 1050 if I'm wrong say I do recalculations
*July 31, 2013*

**Stats**

Alex how do you calculate the power?
*July 29, 2013*

**math**

Alicia Eastman deposited $2,000 in a savings account at the Biltmore Bank paying 6% ordinary interest. How many years will it take for her investment to amount to $2,600?
*June 16, 2013*

**english first additional language**

True
*April 18, 2013*

**5th grade math**

how do i convert milligrams to grams- i am in fifth grade-easiest way please.
*March 28, 2013*

**math**

sorry that was the wrong problem
*December 20, 2012*

**math**

The answer is no because 3 can't go into 2.
*December 20, 2012*

**Algebra 2**

A theater has 43 seats in the first row, 47 seats in the second, and 51 seats in the third row. How many seats are there in row 17
*November 26, 2012*

**Algebra 2**

The height h(t), in feet, of an airborne tee-shirt t seconds after begin launch can be approximated by h(t)= -15t^2+120t+10,0<t<10. Find the times when the tee shirt will reach a fan 190 feet above ground level
*October 18, 2012*

**MAT 116**

A moon is about 210,000 miles from the planet it orbits. Write in scientific notation. If a rocket traveled at 3 x 10^4 miles per hour, how long would it take for it to reach the moon from the planet? Write the number 210,000 in scientific notation. 210,00 = It would take the ...
*September 25, 2012*

**MAT**

The recommanded weight range for a person who is 64 inches tall
*September 20, 2012*

**5th grade math**

10
*September 13, 2012*

**earth**

8 billion year
*September 6, 2012*

**HISTORY**

I LOVE YOU KRISTINA!!!!!! 100%
*September 3, 2012*

**beginning algebra**

how to work out 0.00855 ÷ 0.09
*September 1, 2012*

**math**

idk...
*August 22, 2012*

**finance**

Firm A has $10,000 in assets entirely financed with equity. Firm B also has $10,000 in assets, but these assets are financed by $5,000 in debt (with a 15 percent rate of interest) and $5,000 in equity. Both firms sell 10,000 units of output at $2.50 per unit. The variable ...
*August 10, 2012*

**Finance**

What is the projects initial outlay? Should the project be accepted why or why not? New Caledonia Problem 35% tax bracket 12% discount rate Cost of new plant $9,000,000.00 Shipping and $350,000.00 Sales: Year Sales 1 125,000 units 2 140,000 units 3 190,000 units 4 150,000 ...
*August 4, 2012*

**statistics**

In which data set is there evidence of a strong nonlinear relationship between the two variables?
*April 20, 2012*

**Chemistry**

A Gaseous mixture contains 4.08g of oxygen and 2.78g of Nitrogen a)What pressure is exerted by the mixture inside a 100.0ml metal container at 150C. b) what pressure is contributed by the oxygen? (please show steps)
*April 20, 2012*

**ChemistryI**

If an ideal gas occupies 736 ml at 45C and 719 torr, what volume will it occupyat 105Cand 972torr?
*April 20, 2012*

**statistic**

Provide the Null and Alternative Hypothesis to test the hypothesis that sales is meeting their minimum quota for the month.
*April 7, 2012*

**statistics**

Provide the Null and Alternative Hypothesis to test to be sure that a juice manufacturer is delivering exactly 12 fluid ounces, on average, for each 12 oz juice box.
*April 7, 2012*

**Algebra 102**

9^x=1/3^3 Please Help
*December 5, 2011*

**pre-algebra**

Marissa has budgeted $65 for her monthly cell phone expense. If her plan with her wireless provider is $15 plus $0.25 for each minute, how many minutes can she talk on her cell phone in a month and not exceed her budget?
*October 30, 2011*

**math**

RAMON PLANTED 3 ROWS OF SEEDS. EACH ROW HAD 8 SEEDS. THE SEEDS WERE 42 INCHES LONG. HOW FAR APART SHOULD HE PLANT THE SEEDS?
*October 18, 2011*

**geometry**

If R is the midpoint of AB and S is the midpoint of BC and AS:SC=3:2, determine the length of BS if AC=50.
*September 18, 2011*

**calculus**

Find the interest earned on $15,000,invested for 6yrs at 4% interest compounded annually
*September 6, 2011*

**algebra**

yes it looks correct to me, just make sure in your third line not to leave off the n for 30n and keep your +6 in there
*September 6, 2011*

**algebra**

-3a<-15 -3=-15 ________ -3 =5
*September 5, 2011*

**TU**

calculus, annually
*September 5, 2011*

**TU**

what is the interest of $25,000, invested for 7yrs at 7% interest compounded
*September 5, 2011*

**chemistry**

An object has a mass of 16.3 grams and occupies a constant volume of 85.2 mL at standard conditions. Calculate the density of the object in g/mL?
*August 29, 2011*

**Algebra II**

Give the equations of any horizontal asymptotes for the graphs of the rational functions. h(x)=(7x²-8x-5)/(8x²-3x+9) g(x)=(x²+4x-8)/(x-8)
*July 6, 2011*

**Algebra 2**

is the second one R=625?
*July 6, 2011*

**Algebra 2**

Provide an appropraite response. If y varies inversly as the 4th power of x and y=3 when x=2, what is y when x=0.5? If Q varies inversly as the sqaure root of R and Q=2 whe R=4, what is Q when R is 25?
*July 6, 2011*

**Business Statistics**

John & Jane are married. The probability that John watches a certain television show is .4. The probability that Jane watches the show is .5. The probability that John watches the show, given that Jane does, is .7. 1) find probability that both John & Jane watch the show. 2) ...
*June 21, 2011*

**math**

x2 + 12x - 64 = 0
*June 10, 2011*

**Math**

x2 - 2x - 13 = 0
*June 10, 2011*

**Math**

x2 - 2x - 13 = 0
*June 10, 2011*

**math**

In a shop there are 20 customers, 18 of whom will make a purchase. If three customers are selected, one at a time, at random, what is the probability that all will make a purchase?
*June 9, 2011*

**math**

If two people are selected at random, what is the probability that they were both born in May?
*June 9, 2011*

**math**

Katie had an unpaid balance of $1,734.50 on her credit card statement at the beginning of January. She made a payment of $165.00 during the month. If the interest rate on Katie's credit card was 7% per month on the unpaid balance, find the finance charge and the new ...
*June 9, 2011*

**math**

Two dice are rolled. Find the probability of getting a 5 on either die or the sum of both dice is 5.
*June 9, 2011*

**math**

If two people are selected at random, what is the probability that they were both born in winter (December, January, or February)?
*June 9, 2011*

**math**

coat with an original price of $300.00 is on sale for $285.00. Find the percent of the markdown.
*June 9, 2011*

**math**

A company borrowed $1500. It must make monthly payments of $40.50 for 42 months to pay off the loan. Use the constant ratio formula to find the annual percentage rate.
*June 9, 2011*