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February 1, 2015

February 1, 2015

Post a New Question | Current Questions

**statistics**

Scores on the ACT college entrance exam are Normally distributed with a mean µ = 20 and standard deviation σ = 5. An SRS of 25 ACT scores is selected, construct a 95% Confidence Interval for the sample mean (X-Bar) and interpret your result.
*Monday, December 3, 2012 at 11:48am*

**college algebra**

1. for the given slope-inntercept equation of the line with the following properties parallel to the line y=7; containing the (-3,5) 2. write the equation of the circle in standard form. find the center, radius, intercepts. x^2+y^2+16x-18y+145=25 please show work
*Monday, December 3, 2012 at 11:34am*

**Statistics**

Research Question for Parts 1 and 2: A health psychologist wants to study overall student health on a university campus. One measure he decides to take is that of minutes exercised per week. Assume that we know from previous studies that the population mean for minutes of ...
*Sunday, December 2, 2012 at 8:37pm*

**College Chemistry**

Using the accurate concentration that you measured in Part A (which is 14.77 ml), calculate the mass of HCl (in grams) present in a 15.00-mL sample of the acid solution, using proper dimensional analysis
*Sunday, December 2, 2012 at 7:38pm*

**Basic college Math **

option, Truck A, offers a flat fee of $25 and $.40 per mile. Truck B offers a flat fee of $30 and $.25 per mile.
*Sunday, December 2, 2012 at 7:12pm*

**College Math**

(2x-1/x+3)+(x+4/x-6)+(3x-1/x^2-3x-18)
*Sunday, December 2, 2012 at 6:49pm*

**College Math**

(2x/x^2-16)+(7/x-4)
*Sunday, December 2, 2012 at 6:48pm*

**College Math**

(-2/n-6)-(6/2n+3)
*Sunday, December 2, 2012 at 6:48pm*

**College Math**

1/x^2+3/4x-5/6
*Sunday, December 2, 2012 at 6:47pm*

**College Math**

4x-3/6-8x-2/12
*Sunday, December 2, 2012 at 6:46pm*

**College Math**

2x-1/4x^2+3(x-2)/4x^2
*Sunday, December 2, 2012 at 6:46pm*

**English**

(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
*Sunday, December 2, 2012 at 2:35pm*

**college algebra**

Need help finding the x-intercepts y=x^3+x^2-100x-100 I know that the answer is (10,0),(-10,0),(-1,0) I don't understand how to get (-10,0) and (10,0)
*Sunday, December 2, 2012 at 6:57am*

**college algebra**

for the given function f&g, find the following and state the domain of each result f(x)=2x+1/9x-5; g(x)4x/9x-5 a.(f+g)(x)= what is the domain? b.(f/g)(x)= what is the domain? please show work answer the following for the given quadratic function f(x)=x^2+10x-11 a. what is the ...
*Saturday, December 1, 2012 at 6:42pm*

**college algebra**

1. answer the following for the given quadratic function f(x)=x^2+10x-11 a.what is the vertex (h,k) of f? b. what is the axis of symmetry? Please show work. 2. if f(x)=Inx, g(x)=e^5x, and h(x)=x^6 find the following a. find (fog)(x)= what is the domain of fog? b.find (gof)(x...
*Saturday, December 1, 2012 at 3:49pm*

**college algebra**

1.for the given function f&g, find the following and state the domain of each result. f(x)=2x+1/9x-5; g(x) 4x/9x-5 a.(f+g)(x)=? What is the domain? b. (f/g)(x)=? what is the domain? 2.the function f is defined as follows {x+6 if -5 ¡Üx<1 f(x)={9 if x=1 {-x+4 if x...
*Saturday, December 1, 2012 at 3:26pm*

**college physics**

A cubic crate of side s = 2.5m is top-heavy: its CG is 19cm above its true center. Part A How steep an incline can the crate rest on without tipping over? Part B What would your answer be if the crate were to slide at constant speed down the plane without tipping over? [Hint: ...
*Saturday, December 1, 2012 at 1:16pm*

**College Math**

Volunteers working to raise funds for a new community library sold 1000 raffle tickets at $10 each. Tickets are to be randomly drawn and prizes are awarded as follows: one prize of $1,000, twenty prizes of $50 and one hundred prizes of $20. What is the expected value of this ...
*Saturday, December 1, 2012 at 12:47pm*

**college algebra**

1. solve the following logarithmic equation log_8(x+8)+log_8(x+7)=2 what is the exact solution 2.se the rational theorem to find all the real zeros of the polynomial function. use the zeros to factor f over the real numbers. f(x)=4x^4+5x^3+9x^2+10x+2 a.find the real zeros of f...
*Saturday, December 1, 2012 at 11:08am*

**English**

(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
*Saturday, December 1, 2012 at 10:26am*

**college algebra**

1. find the equation of the line with the given properties. Express the equation in general form or slope-intercept form. perpendicular to the line -3x_y= -27; contains the point (9, -1) the equation of the line is ? 2. solve the polynomial inequality and then graph the ...
*Saturday, December 1, 2012 at 9:22am*

**college algebra**

find the equation of the line that is parallel to the line y=15x and contains the point (1,-4) y= find the distance d (p_1, and p_2) between the points p_1 and p_2 p_1=(-2,1) p_2=(1,4)
*Saturday, December 1, 2012 at 2:07am*

**College Algebra**

Write the expression as a single logarithm whose coeffecient is 1. Log x + 12 log y
*Saturday, December 1, 2012 at 1:06am*

**college algebra**

I am having to explain how to find the domain and range of a rational function from its graph. Can someone help me to try and put this into simple terms.
*Friday, November 30, 2012 at 10:01pm*

**College History**

I have quite a few that I couldn't figure out on my assignment. 1) The leading symbol of reforming state governments in rhe early 1900's was A) Theodore Roosevelt B) Woodrow Wilson C) Robert La Follette D) Upton Sinclair 2) Wilson's first dealings with Congress ...
*Friday, November 30, 2012 at 9:44pm*

**College History**

Which of the following was NOT a result of the great migration of blacks in the 1920s? A) Blacks found they someetimes were able to work in jobs that has been closed to them in the South. B) African American consciousness was raised, providing feelings of greater autonomy and ...
*Friday, November 30, 2012 at 8:01pm*

**college algebra**

write the expression as a single logarithm 1. In(x/x*2)+In(x+2/x)-In(x^2-4) solve the following logarithmic equation. 2. log_9(x-2)+log_9(x+1)=2 what is the exact solution? What is the decimal approximation for the solution when rounded three decimal places. please show work
*Friday, November 30, 2012 at 7:07pm*

**college algebra**

solve the following logarithmic equation. 1. 2log(lower2) (x-2) + log(lower2)^2=3 I do not know how to make the 2 by the g on my computer. 2. log(lower729^x) + log(lower27^x) + log(lower3^x) =9 again I do not know how to make the numbers lower case please show work, and if you...
*Friday, November 30, 2012 at 2:57pm*

**college algebra**

find functions f anf g so that fog equals H H(x)=ãx^2+17 please show work
*Friday, November 30, 2012 at 5:16am*

**college algebra, Please help!!**

find the domain of the composite function of fog f(x)=x^2+8;g(x)ãx-5
*Friday, November 30, 2012 at 5:14am*

**college physics**

A hydraulic brake system is shown. The area of the piston in the master cylinder is 6.32 cm^2, and the area of the piston in the brake cylinder is 1.83 cm^2. The coeﬃcient of kinetic friction between the brake shoe and the wheel drum is 0.443. How large is the ...
*Thursday, November 29, 2012 at 11:33pm*

**College History**

Would Russia have had a revolution had it avoided the First World War?
*Thursday, November 29, 2012 at 1:16pm*

**College Physics 1**

A mass is oscillating on a spring with a period of 4.60s. At t=0s the mass has zero speed is at x=8.30cm. What is the value of t the first time after t=0s that the mass is at x=4.15 cm?
*Wednesday, November 28, 2012 at 8:09pm*

**College Algebra**

A picture frame has a total perimeter of 2 meters. The height of the frame is .62 times its width. Find the dimensions of the frame.
*Wednesday, November 28, 2012 at 7:13pm*

**college algebra, Please help!!**

solve the following equation 9^x-1 = 144(6x) please show work.
*Wednesday, November 28, 2012 at 12:13am*

**college algebra**

Use properties of logarithms to condense the logarithmic expression. Wreite the expression as a simple logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions. Inx + In 15 Please show work
*Wednesday, November 28, 2012 at 12:02am*

**college algebra**

write the expression as a single logarithm In(x/x-2)+In(x+2/x)-In(x^2-4) Please show work
*Tuesday, November 27, 2012 at 11:57pm*

**college algebra**

use the properties of logarithms to find the exact value of the expression loglower 3^18 - log lower3^6 **how do I make the three lower in the log equation?
*Tuesday, November 27, 2012 at 11:41pm*

**college algebra**

solve the following exponential equation. 7^x=8 a. x= Write in exact solution b. then with that answer move the decimal 3 points over
*Tuesday, November 27, 2012 at 11:21pm*

**college algebra, Please help!!**

solve the following logarithmic equation 2log2(lower than g)^(x-2)+log2^2=3 x=?
*Tuesday, November 27, 2012 at 11:00pm*

**College Physics**

A satellite in an elliptical orbit has a speed of 9.00km/s when it is at its closes approach to the Earth(perigee). The satellite is 7.00x10^6 m from the center of the Earth at this time. When the satellite is at its greatest distance from the center of the Earth (apogee), its...
*Tuesday, November 27, 2012 at 10:51pm*

**college algebra, Please help!!**

change the exponential expression to an equivalent expression involving a logarithm. 1.9=a^6 a=1.1129 is this the correct logarithmic expression???
*Tuesday, November 27, 2012 at 10:29pm*

**college algebra, Please help!!**

find the f and g, so that fOg= H H(x)=sqrt x^2+17 please show work
*Tuesday, November 27, 2012 at 9:57pm*

**College Physics**

A satellite in an elliptical orbit has a speed of 9.00km/s when it is at its closes approach to the Earth(perigee). The satellite is 7.00x10^6 m from the center of the Earth at this time. When the satellite is at its greatest distance from the center of the Earth (apogee), its...
*Tuesday, November 27, 2012 at 8:50pm*

**College Physics**

Suppose a planet is discovered that has the same total mass as the Earth, but half its radius. Calculate the acceleration due to gravity on the surface of this planet.
*Tuesday, November 27, 2012 at 7:28pm*

**College Chem 1**

a chemistry handbook lists the solubility of NaI as 184 per 100mL of H2O at 25 degrees Celcius. 1) How many moles of NaI can be dissolved in 100mL of H2O at 25 degrees Celcius? 2) What would be the molarity of a saturated aqueous solution of NaI prepared at 25 degrees Celcius...
*Tuesday, November 27, 2012 at 2:10pm*

**college course**

•unscramble letters for phrases - I / _ _ _ _ _ / _ _ _ _ / _ _ / / _ _ _ _ / a / _ _ _ _ _ / I / _ _ _ / but/ _ _ _ _/ _ _ _ _ _/ _ _ e_ _ / the / _ _ _ e_/. One sentence. this is what they have given me already and said I can use only these letters but can use more than...
*Tuesday, November 27, 2012 at 11:36am*

**time value**

For the last 19 years, Mary has been depositing $500 in her savings account , which has earned 5% per year, compounded annually and is expected to continue paying that amount. Mary will make one more $500 deposit one year from today. If Mary closes the account right after she ...
*Monday, November 26, 2012 at 10:06pm*

**college algbra**

find the domain f(x)=x/x-8,g(x)=-7/x solve the following exponential equation equation exact answers only 3e x-1 = 2+e^x-1
*Monday, November 26, 2012 at 7:45pm*

**College International Affairs**

How did the US affect the dissolution of the Soviet Union? What was the US/ Soviet Union relationship at the time period?
*Monday, November 26, 2012 at 1:35pm*

**Math**

37% of college students say they use credit cards because of the rewards program. You randomly select 10 college kids and ask each to name the reason he or she uses credit cards. Find the probability that the number of college students who say they use credit cards because of ...
*Sunday, November 25, 2012 at 9:04pm*

**math**

Maggie is driving home from college. She drives at a constant speed for 2 hours and then lowers her speed for the next two hours. Which graph best illustrates Maggie's trip home from college?
*Sunday, November 25, 2012 at 6:19pm*

**college algebra--I really need help!!**

solve the following exponential equation. exact answers only. 1-9x 2x 2 = e I hope that you understand this question. I don't and need some help please. Can you show all answers please.
*Sunday, November 25, 2012 at 3:29pm*

**college algebra--I really need help!!**

Find the domain of the composite function FOG f(x)= 2/x-3; g(x)= 7/x please show work so I can undestand
*Sunday, November 25, 2012 at 9:44am*

**college algebra--need help please!!**

find the domain of the composite function fog. f(x)= 2/x-3; g(x)= 7/x please show all work.
*Saturday, November 24, 2012 at 4:43pm*

**college algebra--need help please!!**

solve the following exponential equation. use exact answers only. not sure how to put it into the equation but it is 2 then 1-9x where the 1-9x is above the 2=e2x where the 2x is above the 2. Can someone tell me or explain to me how to put this equation the right way here.
*Saturday, November 24, 2012 at 4:40pm*

**college algebra**

solve the inequality algebraically 11x-3 is greater than or equal to - 4x^2
*Friday, November 23, 2012 at 3:56pm*

**college algebra, Please help!!**

use the remainder theorem to find the remainder when f(x) is divided by x-2. then use the factor theorem to divide x-2 is a factor of f(x). f(x)=4x^4-7x^3-5x+2 the remainder is ? is x-2 a remainder of f(x)=4x^4-7x^3-5x+2 please show work
*Friday, November 23, 2012 at 3:49pm*

**college algebra--need help please!!**

solve the equation in the real number system. 2x^4-23x^3+75x^2-88x+28=0 What are the real solutions of the equations? please show work. I do not know how to work this at all
*Friday, November 23, 2012 at 3:40pm*

**college algebra--need help please!!**

information is given about a polynomial f(x)whose coefficients are real numbers. Find the remaining zeros of f. degree:5, zeros: -6, 6-i please help and show all work.
*Friday, November 23, 2012 at 3:00pm*

**college algebra--need help please!!**

information is given about a polynomial f(x)whose coefficients are real numbers. Find the remaining zeros of f. degree:5, zeros: -6, 6-i please help and show all work.
*Friday, November 23, 2012 at 3:00pm*

**college algebra--need help please!!**

information is given about a polynomial f(x)whose coefficients are real numbers. Find the remaining zeros of f. degree:5, zeros: -6, 6-i please help and show all work.
*Friday, November 23, 2012 at 2:59pm*

**college algebra--need help please!!**

use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=x^5-x^4+9x^3-5x^2-16x+5;[1.3,1.6] f(x)1.3= ? simplify answer f(x)1.6= ? "
*Friday, November 23, 2012 at 2:55pm*

**Math/statistics**

Thirty five percent of adult americans are regular voters. A random sample of 250 adults in a medium size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on the results. ...
*Friday, November 23, 2012 at 4:46am*

**college english**

what is a good attention getter sentence on carpal tunnel syndrome?
*Wednesday, November 21, 2012 at 2:04pm*

**college algebra--please help**

solve the following inequality 70x-51<70/x I get this--but I do not know how to write the final answer in a solution set 70x-51<70/x 70x^2/x - 51x /x - 70/x < 0 70x^2 - 51x - 70/x <0 (10x + 7) (7x - 10)/x <0 x=0 (10x + 7)= 0 (7x - 10)=0 Can you please help me to...
*Tuesday, November 20, 2012 at 10:00pm*

**college algebra**

Solve the inequality algebraically 11x-3¡Ý-4x^2
*Tuesday, November 20, 2012 at 9:40pm*

**college algebra--please help**

Find a bound on the real zeros of the polynomial f(x)=x^4+4x^3-8x-6 can someone help me, I am confused and don't know where to start.
*Tuesday, November 20, 2012 at 5:25pm*

**college algebra--please help**

Form a polynomial f(x) with real coefficients having the given degree and zeros. degrees 5; zeros 1; -i; 7+i please show all work. I am having a hard time understanding this.
*Tuesday, November 20, 2012 at 5:21pm*

**college algebra**

find the complete zeros of the polynomial function. write f in factored form. f(x)=x^3-7x^2+25x-39 please show all work. I do not understand this.
*Tuesday, November 20, 2012 at 5:16pm*

**college bookkeeping**

you would transfer the net profit for a period to? a. an asset account b. a liability account c. an owner's equity account d. to the general ledger I am stumped!! seems to me it could be a or c????
*Monday, November 19, 2012 at 10:39pm*

**college algebra--please help**

what does Descartes rule of signs tell you about the possible number of positive real number zeros and the possible number of negative real zeros of the function? 1. f(x)=2x^5-5x^2+x-1 2. f(x)=5x^6+7x^4-x-6 please show work
*Monday, November 19, 2012 at 7:08pm*

**college algebra**

use the remainder theorem to find the remainder when f(x) is divided by x+2. then use the factor theorem to determine whether x+2 is a factor of f(x). f(x)=4x^6+36x^3+32 please show work
*Monday, November 19, 2012 at 6:59pm*

**college algebra**

use the rational zeros theorem to find all the real zeros of the polynomial function,. use the zeros to factor f over the real numbers. f(x)=11x^3-x^2+11x-1 please show all work
*Monday, November 19, 2012 at 6:55pm*

**college algebra**

use the rational zeros theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=x^3-8x^2-31x-22
*Sunday, November 18, 2012 at 11:47pm*

**college algebra, Please help!!**

find a bound on the real zeros of the polynomial. f(x)=x^4+2x^3-8x-7 every real zero of f lies between -? and ? *pleasae show all work*
*Sunday, November 18, 2012 at 11:42pm*

**college algebra, Please help!!**

use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=4x^3+3x^2-8x+7;[-5,-2] please show all work
*Sunday, November 18, 2012 at 11:31pm*

**college algebra**

form a polynomial f (x) with real coefficients having the given degree and zeros. degree 5; zeros 5; -i; -6+-i f(x)= a(?) Please show step by step work.
*Sunday, November 18, 2012 at 10:58pm*

**college algebra**

find the complex zeros of the polynomial function. write f in factored form. f(x)=x^3-10x^2+37x-52
*Sunday, November 18, 2012 at 10:53pm*

**college finite math**

Find the marginal average cost function: C(x)=10-e^-x
*Sunday, November 18, 2012 at 6:24pm*

**math 104**

From a survey of 100 college students, a marketing research company found that 50 students owned iPhones, 45 owned cars, and 35 owned both cars and iPhones.
*Sunday, November 18, 2012 at 3:53pm*

**college**

square root 9v+7=5
*Sunday, November 18, 2012 at 2:31pm*

**Chemistry..**

I want to be a pharmacist, so after high school do I go to a 4 year college and then another 4 year of pharmacy school? And also, how can I be well prepared as a high school student?
*Sunday, November 18, 2012 at 12:57am*

**college math**

A lawn mower handle makes an angle of 60° with the ground. A woman pushes on the handle with a force of 30 pounds. How much work is done in moving the lawn mower a distance of 75 feet on level ground?
*Saturday, November 17, 2012 at 11:06pm*

**College Math **

Suppose the supply and demand for a certain videotape are given by: Supply: p=1/3q^2 Demand: p=-1/3q^2+48
*Saturday, November 17, 2012 at 8:04pm*

**College Algebra**

In an assembly line of a factory, which produces networking switching hubs, two robots are utilized. The first one (A) is able to produce 40 microchips per hour, whereas the second one (B) produces 30 microchips per hour. For a total production of 400 microchips, the two ...
*Friday, November 16, 2012 at 8:37pm*

**math**

At a certain college, there are 7 men for every 5 women. If there are 440 more men than women, what is the total enrollment?
*Friday, November 16, 2012 at 5:53pm*

**math**

At Strawberry State College, the ratio of females to males is 2:1. If there are 2100 students, how many are female and how many are male?
*Friday, November 16, 2012 at 5:52pm*

**Personal Dimension of Educatio**

Select the sentence that has correct subject-verb agreement. 1. Applied mathematics was my major in college. 2. Applied mathematics were my major in college. My answer is 1
*Friday, November 16, 2012 at 12:34pm*

**college algebra**

use the remainder theorem to find the remainder when f(x) is divided by x-2. Then use the factor theorem to determine whether x-2 is a factor of f(x). f(x)=4x^3-10x^2+13x-13
*Thursday, November 15, 2012 at 8:42pm*

**college algebra--need help please!!**

(Using the seven steps to analyzing the rational function of R), analyze the graph of the following function. R(x)=x^2-49/x^4-16
*Thursday, November 15, 2012 at 6:12pm*

**college algebra**

find all the zero's of the followig polynomial. write the polynomial in form. f(x)=x^2-256
*Thursday, November 15, 2012 at 4:46pm*

**college algebra, Please help!!**

which of the following best describes how the graph of f can be obtained from the graph of y=1/x^2? f(x)=14/x^2 choose the correct answer a.vertical stretch by a factor of -4 b. reflection over the y-axis, vertical shrink by a factor of 4 c. reflection over the x-axis, stretch...
*Wednesday, November 14, 2012 at 7:42pm*

**college algebra, Please help!!**

the graph of y=1/3 3square root x+5 can be obtained from the graph of y=3square root x by which transformations? Horiztonal shift: a. 5 units to the left b. 3 units to the right c. 3 units to the left d. 5 units to the right By what factor of y=3 square root x be stretched or ...
*Wednesday, November 14, 2012 at 5:28pm*

**college algebra, Please help!!**

How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the square roots. Can ...
*Wednesday, November 14, 2012 at 5:17pm*

**college algebra, Please help!!**

How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the square roots. Can ...
*Wednesday, November 14, 2012 at 5:17pm*

**college algebra, Please help!!**

How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the square roots. Can ...
*Wednesday, November 14, 2012 at 5:17pm*

**college algebra**

use completeing the square to describe the graph of f(x)=4-16x-x^2 support your answers graphically
*Wednesday, November 14, 2012 at 5:06pm*

**college algebra**

find the intercept of the equation (x+6)^2(x-1)^2 does this crosses the x axis the smaller or touches the x axis or does it touch at the larger x intercept or crosses the larger
*Wednesday, November 14, 2012 at 3:45pm*

**college algebra**

q(x)=3x^2-11x-4/5x^2-16x-16 what are the oblique horizontal vertical asyptote
*Wednesday, November 14, 2012 at 3:20pm*

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