# jenn

Newest questions and responses by jenn-
## history

how would america be different today if Thomas Jefferson would have stayed true to his principles? Any links that will help me out here? I don’t have my book with me and it is not multiple choice

*asked on October 12, 2018* -
## math

what are all of the subsets for {-8, 4}

*asked on October 9, 2018* -
## english

What format does “forest fire” by Anais Nin use? example: compare-and-contrast

*asked on September 18, 2018* -
## Algebra

A financier plans to invest up to $500,000 in two projects. Project A yields a return of 11% on the investment of x dollars, whereas Project B yields a return of 16% on the investment of y dollars. Because the investment in Project B is riskier than the

*asked on June 6, 2018* -
## Physics

A small spherical insulator of mass 6.53 × 10-2 kg and charge +0.600 uC is hung by a thin wire of negligible mass. A charge of -0.900 uC is held 0.150 m away from the sphere and directly to the right of it, so the wire makes an angle with the vertical

*asked on February 26, 2018* -
## statistics

H0 is p = 0.45 and H1 is p ≠ 0.45. What type of test will be performed? A. Two-tail testing of a proportion B. One-tail testing of a proportion C. One-tail testing of a mean D. Two-tail testing of a mean ** I'm stuck between A & D. I chose those

*asked on February 23, 2018* -
## statistics

Determine which of the following four population size and sample size combinations would not require the use of the finite population correction factor in calculating the standard error. A. N = 1500; n = 300 B. N = 2500; n = 75 C. N = 15,000; n = 1,000 D.

*asked on February 23, 2018* -
## Math

Laura was making a recipe that said the ingredients were for 6 people, but she needed to make it for 8 people. The recipe called for 2 2/3 cups of milk and 1/4 cup of oil. How many cups of these liquid ingredients did she need for 8 people?

*asked on October 19, 2017* -
## Statistics

Williams, Dunsiger, Jennings, and Marcus (2012) conducted a study to test how enhanced mood during exercise can increase the likelihood of physical activity in the future. They reported that at 6 months of physical activity, mood scores (rated on a scale

*asked on September 30, 2017* -
## math

What is the slant height of the cone with the suface area of 200cm2?

*asked on May 30, 2017* -
## math

Cashew nuts are sold at $15.00/kg. Walnuts are sold at $12.00/kg. What quantities of each nut would a store owner put into a 100-kg barrel so that it could be sold for $13.20/kg? ---------------- 15.00c+12.00w= 31.20 C+w= 100 Are these equations right?

*asked on May 25, 2017* -
## math

A boat travels from one port A to port B, travelling 126 km, upstream (against the current) at a uniform speed, and the trip takes 6 hours. On the way back (downstream), the trip only takes 4.5 hours. Set up and solve a system of equations to find out

*asked on May 22, 2017* -
## chemistry

Now use the average value of Kb the base dissociation constant of acetate anion to calculate an average value for Ka, the acid dissociation constant of acetic acid. Kb: 1.33x10^-10

*asked on May 19, 2017* -
## 2 math questions, urgent plz help!!

The line with equation a + 2b = 0 coincides with the terminal side of an angle θ in standard position and cos θ

*asked on April 23, 2017* -
## maths

A company has 200 employees who are eligible for child care benefits. The company will pay eligible employees 25% of child day care costs, up to a maximum of $500 per child per month. If an employee has 2 children in day care at a cost of $500 per child

*asked on February 28, 2017* -
## MATH, please help

So this is a "Challenge" (we don't have to do it but my mum is making me) we haven't learned it, it's only if you want to do anything harder or more difficult. 1.explain why the ratios 6/9 and 8/12 are in proportion

*asked on December 7, 2016* -
## MATH help ASAP

explain why the ratios 6/9 and 8/12 are in proportion. i don't understand what the question is asking?

*asked on December 7, 2016* -
## chemistry

Derived the equation pH = pKa + Log [base] for a weak acid and its conjugate base, [acid]

*asked on December 1, 2016* -
## chemistry

Tell how you would prepare an acetic acid/acetate buffer solution having apH of 3.79. Ka for acetic acid = 1.85 x 10-5

*asked on December 1, 2016* -
## math

if there are 19 boys and 24 girls in the math class. 10 boys and 15 girls are freshman. if you randomly choose a student, what is the probability that it will be a girl or freshman?

*asked on November 2, 2016* -
## College Algebra

ok, so I need to come up with an answer for this question- A car traveling 65mph on the hwy gets 25 miles per gallon. Write the function that represents the distance d(t) in miles that the car travels in t hours. *Then, Write a function that represents the

*asked on October 5, 2016* -
## Physics

Two ants race across a table 76 cm long. One travels at 5.2 cm/s and the other at 2 cm/s. When the first one crosses the finish line, how far behind is the second one? Answer in units of cm. Can you teach me how to do this plz?

*asked on October 1, 2016* -
## Math

Here is the problem. I got the answer but I would like a better understanding. Find the equation of a line that passes thru(6,-2) and is perpendicular to equation x-3y+16. I got the final answer being -3x+16. Can someone please explain how to get this? I

*asked on April 25, 2016* -
## Math

tan(θ)/ sec(θ) − cos(θ) Please help!

*asked on April 19, 2016* -
## math

If it says write the equation, five less than half a number is forty would the answer be 1/2n-5=40

*asked on January 8, 2016* -
## Statistic

We thought if we each post a question you would answer our question. This is not a game we need help for our statistics math course before Monday day

*asked on November 29, 2015* -
## Statistic

test consists of 10 multiple choice questions with five choices for each question. As an experiment, you GUESS on each and every answer without even reading the questions. What is the probability of getting exactly 7 questions correct on this test?

*asked on November 29, 2015* -
## science

A 2.1kg soccer ball is struck with a 45N force for .3 seconds. What is the Frictional force if the ball rolls for 11 seconds before stopping.

*asked on November 17, 2015* -
## math

ou were named District Manager of the Month at BeBop Records due to a hiring study you conducted. Your study showed that each of 30 salespersons that you supervise average $50,000 in sales each month. Your study also showed that for each new salesperson

*asked on July 23, 2015* -
## Math

Austin bought a new house. The value of his house is modeled by the function H\left( x \right) = 120000{\left( {1.20} \right)^{\left( {\frac{1}{2}x} \right)}} where x is the number of years since he purchased the house. Looking at the model by what

*asked on July 14, 2015* -
## English

Among the many marchers included,President Meyers who walked for the fifth time. Is this sentence OK, or how could I fix it?

*asked on May 2, 2015* -
## Calculus

Does the series (cos(k/3))^2/2^(k/3)+1 from k=1 to infinity converge?

*asked on March 29, 2015* -
## Trigonometry

16 sin^2 x = 16 − 8 cos x Find all solutions of the equation in the interval [0, 2π)

*asked on March 16, 2015* -
## 7th grade geometry

When wrapping a present in the shape of a rectangle prism, joe adds an additional 2.5 feet of paper to allow for overlap. How many sq ft does he use to wrap a gift 3.5 ft long, 18 inches wide, and 2 ft high?

*asked on March 12, 2015* -
## science

When a fan is turned on it changes electrical energy into blank energy is it ma. Motion b.magnetic c. Gravitational. D. Electromagnetic

*asked on January 27, 2015* -
## english

what's the meaning of 1. i've grown certain that the root of all fear is that we've been forced to deny who we are

*asked on January 20, 2015* -
## english

what does this quote mean: never underestimate the power of stupid people in large groups please help!

*asked on January 20, 2015* -
## Physics

A person weighing 900 Newtons is standing on snowshoes. Each snowshoe has an area of 2500cm^2. What is the pressure on the snow?

*asked on January 7, 2015* -
## statistics probability

Assume that the thermometer readings are normally distributed with a mean of 0 degrees C and a standard deviation of 1.00 degrees C. A thermometer is randomly selected and tested. The probability of getting a reading between -1.39 degrees C and 1.69

*asked on December 11, 2014* -
## geometry

Satellite Explorer VII, with a = 4465 and b = 4462, and with the center of the Earth being at one of the foci of the ellipse. Assuming the Earth has a radius of about 3960 miles,graph both the orbits of Explorer VII and earths surface on the same axis if

*asked on December 11, 2014* -
## Chemistry

What is the freezing point of a solution that contains 21.1g of urea, CO(NH2)2, in 305mL water, H2O? Assume a density of water of 1.00 g/mL.

*asked on December 6, 2014* -
## statistics

Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so. A survey examines the preferences for laundry detergent. ***The admissions office wants to estimate the cost of textbooks for

*asked on November 23, 2014* -
## Managerial Accounting

I have a homework problem that asks me to do the following: 1. Prepare a schedule of total cash collections for October through December. 2. Prepare a schedule of total cash disbursements for October through December. 3. Prepare a cash budget for October

*asked on October 6, 2014* -
## Physics

A basketball is thrown horizontally with an initial speed of 4.70m/s . A straight line drawn from the release point to the landing point makes an angle of 30.0 ∘ with the horizontal. What was the release height?

*asked on October 6, 2014* -
## algebra

a squirrel can run at a speed of 20 miles per hour. How many feet per second is this?

*asked on October 3, 2014* -
## College Algebra

Jen recently rode her bicycle to visit her friend who lives 12 miles away. On her way there, her average speed was 10 miles per hour faster than on her way home. If Jen spent a total of 1 hour bicycling, find the two rates.

*asked on September 30, 2014* -
## Chemistry

If a sample of silver carbonate contains 1.75 grams of silver [Ag] atoms, calculate the mass (in grams) it contains of oxygen atoms [O].

*asked on September 25, 2014* -
## Math quadratic word problem

The base of a triangle is 4cm shorter than twice the altitude, find the dimensions if the area is 80sqcm. this is work x(2x-4)=80 2x squared - 4x=80 2x squared -4x-80=0 (2x 8)(x-10) =0 so x= -8 and x=10 my classmate told me its wrong so can you pls help

*asked on September 16, 2014* -
## Math using quadratic equation

The freight train runs 12miles per hour than a passenger train. It runs 65miles in the same time that the passenger train runs 165miles find the rate of each train. I don't really know the formula using quadratic im sorry

*asked on September 15, 2014* -
## Math using Quadratic equation

The area of a square is 196cm2(squared), find the measure of one side. Thank you,, this is my assign. In math1, im using the formula A=s*s but i need to solve this using quadratic equation.

*asked on September 15, 2014* -
## Chemistry

How much energy, in calories, is needed to heat 18 cubic centimeters of fat from 25 degrees Celsius to 35 degrees Celsius?

*asked on September 3, 2014* -
## algebra

A rock is thrown upward with a velocity of 15 meters per second from the top of a 30 meter high cliff, and it misses the cliff on the way back down. When will the rock be 10 meters from the water, below? Round your answer to two decimal places. I am not

*asked on August 24, 2014* -
## organic chemistry

What is the complete reaction mechanism for the reaction between butanone and methylamine (CH3NH2) with the reaction buffered at a pH of 3.5 and heated.

*asked on July 28, 2014* -
## algebra

express 5/2 x (1/11 - 1/2) as a single fraction

*asked on June 20, 2014* -
## algebra

Factor: 3x^2 + 5x - 2

*asked on June 20, 2014* -
## Math

The numerator of a simple fraction is 2 less than its denominator. The sum of this fraction and its reciprocal is 2 4/35. Find this fraction.

*asked on May 8, 2014* -
## Chemistry

A 495-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 18.1g CO2. What was the concentration of the HCl solution?

*asked on May 5, 2014* -
## Chemistry

What volume of 1.25M HCl in liters is needed to react completely (with nothing left over) with 0.750L of 0.300M Na2CO3?

*asked on May 5, 2014* -
## geometry

if the measurement of angle fgk is 3y-4 and measurement of angle kgh is 2y+7 find x

*asked on February 13, 2014* -
## Geometry

Player hits the ball at point A an angle of 45 degrees on a pool table that measures 9’ by 4.5’. How many times will the bait a side of the table before going into a pocket?

*asked on January 26, 2014* -
## Bus 311

1. Petra contracted to paint Bret’s house for $2,000. After beginning the job, Petra realizes that the house is really quite big, and she’s not going to make enough profit, so she tells Bret she wants another $500 to finish the job. Bret doesn’t want

*asked on January 10, 2014* -
## College Algebra

solve the polynomial inequality and graph on number line. express in set interval rotation. Show work x^3 - 3x^2 - 9x + 27 < 0

*asked on November 24, 2013* -
## Stats

Which of the following statement is true? In testing the hypothesis for the equality of two population proportions, the acceptance region for the null hypothesis will be wider than the confidence interval for two population proportions, assuming the same

*asked on November 18, 2013* -
## Accounting

Describe the mechanisms that WorldCom’s management used to transfer profit from other time periods to inflate the current period.

*asked on October 5, 2013* -
## Physics

At t = 0, an automobile traveling north begins to take a turn. It follows one-quarter of the arc of the circle of radius 9.8 m until, at t = 1.38 sec, it is traveling east. The car does not alter its speed during the turn.

*asked on September 23, 2013* -
## Chemistry

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 5.8cm . Its mass is 1.5kg . Calculate the density of the metal.

*asked on September 2, 2013* -
## Science

What effect does CRH have on the corticotrophs of the anterior pituitary?

*asked on June 11, 2013* -
## STATISTICS

(a) With n=12 and p =0.4 find the binomial probability that p(9) by using a binomial probability table. (b) np ¡Ý5, nq¡Ü5, also estimate the indicated probability by using the normal distribution as an approximation to the binomial, is np < 5 or nq < 5

*asked on June 2, 2013* -
## Statistics

(a) With n=12 and p =0.4 find the binomial probability that p(9) by using a binomial probability table. (b) np ¡Ý5, nq¡Ü5, also estimate the indicated probability by using the normal distribution as an approximation to the binomial, is np < 5 or nq < 5

*asked on June 2, 2013* -
## Statistics

women's heights are normally distributed with a mean 63.1 in and standard deviation of 2.5. A social organization for tall people has a requirement that women must be at least 69in tall. What percentage of woman meet that requirement? The percentage of

*asked on June 2, 2013* -
## Math

If you are dealt a 5-card hand from a standard deck of 52 playing cards, what is the probability (rounded to 6 decimal places) that you are dealt at least 4 hearts?

*asked on May 5, 2013* -
## statistics

The sample mean for a recent introductory psychology test was 78, and the sample variance was 9. If a student received a score of 82, what was this student’s z-score?

*asked on April 19, 2013* -
## Algebra

Find the equation with the given properties. Express the equation in slope intercept form. Containing points p=(-4,-2) and Q=(-2,1) What is the equation of the line? y=

*asked on April 14, 2013* -
## math

The ratio of yellow paint to blue paint is 3 quarts to make the color green to paint my bathroom. I need a total of quarts of yellow paint. How many quarts of blue paints I need?

*asked on April 6, 2013* -
## Use the intermediate value

Use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=9x^4-3x^2+5x-1;[0,1]

*asked on March 26, 2013* -
## Solve the inequality...

Solve the inequality x^2(9+x)(x-9)/(x+7)(x-5) is greater than or equal to 0?

*asked on March 26, 2013* -
## College algebra

Form a polynomial f(x) with real coefficents having the given degree and zeros degree 5; zeros: 5; -i; -9 +i f(x)=a

*asked on March 25, 2013* -
## Using the remainder

use the remainder theorem to find the remainder when f(x) is divided by x - 3. Then use the factor theorem to determine whether x-3 is a factor of f(x) f(x)=2x^3-10x^2+11x+12

*asked on March 25, 2013* -
## Solve the inequality

Solve the inequality x^2(8+x)(x-9)/(x+4)(x-7) is greater than or equal to 0?

*asked on March 25, 2013* -
## inequality

solve the inequality (x+8)^2(x-4) > 0

*asked on March 25, 2013* -
## College algebra

Find the vertical, horizontal, and qblique asymptotes, if any, for the following rational function. T(x)=x^2/x^4-256

*asked on March 25, 2013* -
## Algebra

Find the following function f(x)=(x+3)^2(x-1)^2 (a)Find the x and y intercept of the polynomial function f. (b) Determine whether the graph of the f crosses or touches the x-axis at each x intercept. (c) Put all the information to obtain the graph of f.

*asked on March 25, 2013* -
## Algebra

Use completing the square to describe the graph of the following function. Support your answer. f(x)=-2x^2+4x+1

*asked on March 25, 2013* -
## Algebra

Find the vertical, horizontal, and oblique asymptotes, if any, for the following rational function. T(x)=x^2/x^4-256

*asked on March 20, 2013* -
## Algebra

Determine the quadratic function of f whose vertex is (2,-1) and passes through (3,1) f(x)=

*asked on March 19, 2013* -
## Use completing the square to...

Use completing the square to describe the graph of the following function support your answer graphically. f(x)=-2x^2+4x+1

*asked on March 19, 2013* -
## Quadratic function

Determine the quadratic function f whose graph is given. The vertex is (-3,-13) and the y-intercept is -4 f(x)=

*asked on March 19, 2013* -
## math

I have an average of 66.67 i need a 70percent to pass the class, what do i need to get on thenext test?

*asked on March 18, 2013* -
## math

I have an average of 66.67 i need a 70percent to pass the class, what do i need to get on thenext test?

*asked on March 18, 2013* -
## Given the following rational function

Given the following rational function, find a) the horizontal asymptote(s), b) the vertical asymptote(s), if any, and c) the oblique asymptote(s), if any. F(x) = x^2-x-2/2x^2-x-2

*asked on March 17, 2013* -
## Please help! quadratic equation

Given the following quadratic equation find. a) the vertex b) the axis of symmetry c) the intercepts d) the domain e) the range f) the interval where the function is increasing g) the interval where the function is decreasing h) graph the function y=

*asked on March 16, 2013* -
## Determine without graphing

Determine without graphing, whether the given function has a maximum value and then find the value. f(x)=3x^2+30x-1

*asked on March 15, 2013* -
## College algebra

Determine without graphing, whether the given function has a maximum value and then find the value. f(x)=3x^2+18x-6

*asked on March 15, 2013* -
## College algebra!

For the linear function f(x) = 5x + 3 (a) Determine the slope and y-intercept (b) Use the slope and y-intercept to graph the linear function. (c) Determine the average rate of change of the function (d) Determine whether the linear function is increasing,

*asked on March 15, 2013* -
## College algebra

Answer the questions about the following functions. f(x) = 14^2/x^4 + 49 (a) Is the point (-sqrt 7,1) on the graph of f? (b) If x=1, what is f(x)? What point is on the graph of f? (c) If f(x)=1, what is x? what point(s) are on graph of f? (d)What is the

*asked on March 15, 2013* -
## Algebra

If you bought 6 pears and 20 oranges and then bought 11 pears and 12 oranges and spent the same each time, how much do oranges cost if the pears are 80 cents each?

*asked on February 27, 2013* -
## Math

Nata spent $28 on 2 DVDs. At this rate, how much would 5 DVDs cost?

*asked on February 12, 2013* -
## math

Suppose 8 out of every 20 students are absent from school less than five days a year. Predict how many students would be absent from school less than five days a year out of 40,000 students.

*asked on February 12, 2013* -
## Math

A survey reported that out of 50 teenagers, 9 said they get their news from a newspaper. At this rate, how many out of 300 teenagers would you expect to get their news from a newspaper?

*asked on February 12, 2013* -
## Science

trying to lift an 8-N load that is attached to a fixed 2 pulley system. Hands move a distance of 1.6m while the load moves 0.8m, what is the force required to lift the load? I am thinking the the answer is 1.6 divided by 0.8 am i on the right track? what

*asked on February 7, 2013*