Tuesday
October 25, 2016

# Posts by Chris

Total # Posts: 2,628

If Jack takes 6 hours to wash 4 cars then at that rate how man cars could be washed in 42 hours? we got answer of 28 cars but then how do you determine the rate the cars were being washed? the teacher gave answer of 2/3 cars per hour but we don't understand how she got that.
October 15, 2013

It takes 1.5 hours to walk three miles. How far can he go if he walked for 4 3/4 hours?
October 15, 2013

Dante can buy 20 marbles for \$1.50. How many marbles can he buy for \$27.00? Do you divide &27.00 by \$1.50 then multiply that number by 20 to get 360 marbles?
October 15, 2013

Maths
Suppose that a is an integer such that x^2+2xy−360y^2+ax+38y+361 can be factorized as the product of linear expressions in x and y. What is the value of a ?
October 15, 2013

Maths
If the graph of y=(ax-5)/(x+b) does not intersect either of the lines x=7 or y=−3 , what is the value of a and b ?
October 15, 2013

Statistics
Smoking habit Socioeconomic status High Low Smoking 15 40 55 Not smoking 25 10 35 Total 40 50 N=90 a. For these ordinal variables, which hypothesis testing is appropriate to test the relationship between SES and smoking habits variable? b. Write the HO and H1 c. Perform the ...
October 14, 2013

Statistics
2. A researcher wants to find out how students feel about a proposal to ban smoking on campus. She selected THREE groups of “students who currently smoke”, “students who formerly smoke”, and “students who never smoke”. Also, she selects a sample ...
October 14, 2013

Maths
For two sets X={-1,1,a} and Y={7,16,b} f(x)=x^3+8 is a bijective function from X to Y. What is the value of a and b ?
October 13, 2013

Maths
If (x−48)−(y+16)i=0, what are the values of x,y?
October 13, 2013

Math
A shopper asked for 50 cents worth of apples. The shopper was surprised when she received ﬁve more than the previous week. Then she noticed that the price had dropped 10 cents per dozen. What was the new price per dozen?
October 12, 2013

Maths
For 2 sets X={1,2,3,4},Y={−15,0,30}, f is a surjective function from X to Y. If f(1)=−15 and f(2)=f(4)=0, what is f(3) ?
October 12, 2013

When planting trees in a forest, the US Forest Service recommends giving each seedling about 1/200 acre on which to grow. About how many seedlings should be planted in 1/3 of an acre? 1/3 times 200/1?
October 11, 2013

Mathematical induction. I'm stuck. So far I have..
For all integers n ≥ 1, prove the following statement using mathematical induction. 1+2^1 +2^2 +...+2^n = 2^(n+1) −1 Here's what I have so far 1. Prove the base step let n=1 2^1=2^(1+1)-1 False. Someone else suggested that the base step is : 1+2^1=2^(1+1)-1 ...
October 11, 2013

statistics
How many friends must you have to guarantee that at least five of them will have birthdays in the same month?
October 11, 2013

Discrete Math
How many friends must you have to guarantee that at least five of them will have birthdays in the same month?
October 11, 2013

Math Reasonableness
Luciel has 365 cookies to sell. She wants to store them in plastic bags that hole 12 cookies each. she estimates she will need 30 bags.Is he right? Why or why not?
October 10, 2013

Math Explanation
If you are asked to find 834/80=, how do you know the quotient is greater than 10 before you actually divide?
October 9, 2013

Maths
Consider the parabola y=x^2-2px+p+1. If the real number p has the property a<p<b, then the vertex of y is above the line y=−12x+13. What are a and b?
October 8, 2013

Maths
Given that a and b are real numbers and that x satisfies the inequality ax>=b when x>=14, what is the smallest integer x that satisfies ax>a+2b ?
October 8, 2013

Rachel completed 3/4 of her cleaning in 4 hours. How many total hours will Rachel spend cleaning? 4 divided by 3/4 4/1x4/3=16/3= 5 1/3 hours Is this correct?
October 6, 2013

Maths
If a line with x-intercept −5 and y-intercept 35 passes through point P=(5,a) , what is the value of a ?
October 6, 2013

Maths
Let y=ax+b be the equation of the line with x-intercept 2 and y-intercept −12. What are a and b values?
October 6, 2013

Maths
Given that −24<A<39 , let x and y be the maximum and minimum integer values, respectively, of −2A+5. What is x and y?
October 6, 2013

Maths
Consider the line passing through two points P=(1,8) and Q=(−1,3). If the line also passes through point R=(15,a), what is the value of a?
October 6, 2013

maths
Given that a and b are real numbers and that x satisfies the inequality ax>=b when x>=75, what is the smallest integer x that satisfies ax>a+2b ?
October 4, 2013

Statistics
The American Academy of Pediatrics (AAP) recommends that kids 2-5 years old watch no more than (on average) 1.6 hours a day of quality programming. A researcher selected a sample of 101 kids in the neighborhood and asked their parents how many hours per day they allow their ...
October 4, 2013

Statistics
1.The average number of acts of physical violence in a random sample of 150 TV movies was 4.5 acts with a standard deviation of 0.75. At the 95% confidence interval level, what is your estimation of the mean range of all movies shown in the television? Explain the result in ...
October 4, 2013

math
3x21=63 63-3=60 -The answer is 21
October 4, 2013

Physics
A 0.568 kg particle has a speed of 1.57 m/s at point A and kinetic energy of 7.67 J at point B. What is its kinetic energy at A? What is its speed at point B? What is the total work done on the particle as it moves from A to B?
October 1, 2013

Physics
A block of mass 2.30 kg is pushed 2.38 m along a frictionless horizontal table by a constant 16.0 N force directed 26.9o below the horizontal. Determine the work done by the applied force. Determine the magnitude of the normal force exerted by the table. Determine the ...
October 1, 2013

physics
If a woman lifts a 16.2 kg bucket from a well and does 6.33 kJ of work, how deep is the well? Assume that the speed of the bucket remains constant as it is lifted.
October 1, 2013

Maths
Two candidates A and B are up for election. A is so popular that the number of votes for B is expected to be less than or equal to 10% of A's votes. If the total number of votes for both candidates is 110 , what is the minimum number of votes we could expect A to receive?
October 1, 2013

maths
If P=(a,a) is a point on the line y=−2x+27, what is the value of a?
September 30, 2013

maths
If a line with x-intercept −3 and y-intercept 21 passes through point P=(8,a) , what is the value of a?
September 30, 2013

physics
So, 25(.45+.45)-1/2(8.5)(.45)^2?
September 27, 2013

physics
The driver of a car, traveling at a constant 25 m/s, sees a child suddenly run into the road. It takes the driver 0.45s to hit the brakes. As it slows, the car has a steady acceleration of 8.5 m/s^2. What's the total distance the car moves before it stops?
September 27, 2013

Geometry
A plane is heading 25° west of south. How many degrees south of west is this plane flying?
September 24, 2013

FIN 370
1. (defining capital structure weights) templeton extended care facilities, inc. is considering the acquisition of a chain of cemeteries for \$340 million. Since the primary asset of this business is real estate, templeton’s management has determined that they will be able...
September 22, 2013

Thank you so much.
September 17, 2013

The lasagna recipe requires two pounds of ground beef for ever six cups of tomato sauce. How much beef is necessary if you only have one cup of tomato sauce?
September 17, 2013

fin 370 # 2
(individual or component costs of capital) Your firm is considering a new investment proposal and would like to calculate its weighted average cost of capital. To help in this, compute the cost of capital for the firm for the following: a. A bond that has a \$1,000 par value (...
September 17, 2013

fin 370 # 2
(individual or component costs of capital) Your firm is considering a new investment proposal and would like to calculate its weighted average cost of capital. To help in this, compute the cost of capital for the firm for the following: a. A bond that has a \$1,000 par value (...
September 17, 2013

Math
Estimate the total weight of two boxes that weigh 9.4 lb and 62.6 lb using rounding and compatible numbers. Which estimate is closer to the actual weight?Why?
September 17, 2013

fin 370
(individual or component costs of capital)Compute the cost of the capital for the firm for the following:? a. A bond that has a \$1,000 par value (face value) and a contract or coupon interest rate of 11.7%. The bonds have a current market value of \$1,125 and will mature in 10 ...
September 17, 2013

finanace
Compute the cost of the capital for the firm for the following:? a. A bond that has a \$1,000 par value (face value) and a contract or coupon interest rate of 11.6%. The bonds have a current market value of \$1,124 and will mature in 10 years. The firms marginal tax rate is 34...
September 16, 2013

finance
Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for \$350 million. Since the primary asset of this business is real estate, Templeton’s management has determined that they will be able to borrow the majority of the money ...
September 15, 2013

finance
Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for \$350 million. Since the primary asset of this business is real estate, Templeton’s management has determined that they will be able to borrow the majority of the money ...
September 15, 2013

finance
Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for \$350 million. Since the primary asset of this business is real estate, Templeton’s management has determined that they will be able to borrow the majority of the money ...
September 15, 2013

The ratio of the number of adults to the number of students at the prom has to be 1:10. There are 477 more students than adults. How many adults are at the prom? 1/2x+477=10/2x?
September 13, 2013

Thank you!!!
September 13, 2013

At a country concert, the ratio of the number of boys to the number of girls is 2:7. If there are 250 more girls than boys, how many boys are at the concert?
September 13, 2013

physics
You throw a baseball directly upward at time t = 0 at an initial speed of 12.5 m/s. What is the maximum height the ball reaches above where it leaves your hand? At what times does the ball pass through half the maximum height? Ignore air resistance and take g = 9.80 m/s2.
September 8, 2013

physics
In a game against the White Sox, baseball pitcher Nolan Ryan threw a pitch measured at 34.4 m/s. If it was 18.4 m from Nolan's position on the pitcher's mound to home plate, how long did it take the ball to get to the batter waiting at home plate? Treat the ball's ...
September 6, 2013

SAT Math
It is 11
August 30, 2013

Algebra
z=1/3 the value of18z^2-15z?
August 26, 2013

Physics
I have tried breaking down a periodic table for children. We have to do things where they can understand. I need some help with this one. What type of items I can use to simulate rows and columns for a periodic table for children?
August 25, 2013

health Environment
Contrast the typical profiles of higher and lower molecular weight chemicals as to their physical-chemical properties and their behavior in the environment?
August 17, 2013

physics
a motorcycle has a speed of 25.5 m/s what is the kinetic energy of the motorcycle
July 14, 2013

algebra
Determine the quadratic function f whose vertex is (3,-2) and passes through(1,6) f(x) = ax^2 + bx + c
July 9, 2013

Chemistry
I am having trouble getting the Net ionic equation for: 1)MgSO4 + Na3PO4= 2)Na2CO3 + ZnCl2= 3)Na2CO3 + Na3PO4= 4) Na3PO4 +ZnCl2=
July 4, 2013

american history
Wrong. B is not the Answer. I got it wrong on my Penn Foster Exam. 9/23/2013 * Wrong Answer. @Ms.Sue
June 6, 2013

math
If RS=8y+4, ST=4y+8, and RT=36, find the value of y.
June 5, 2013

english
What grammatical structure is the italicized portion of the sentence? By serving as a popcorn vendor, Don saw many good games. present participial phrase nominative absolute appositive past participial phrase prepositional phrase with a gerund
June 5, 2013

Healthcare Finance
how to calculate the revenue when you don't know the the net income but do have the expense
June 3, 2013

health
Do you believe the opportunities for continuing education and development are often more important to professionals than to other employees? why or why not?
June 1, 2013

Healthcare Management
Do you believe the opportunities for continuing education and development are often more important to professionals than to other employees? why or why not?
June 1, 2013

English 12
sorry i should have added my answers before hand, here are my answers. 1. Which of Yeats's poem opens with the symbol of a gyre, a spiral spinning out of control? (1 point) "Sailing to Byzantium" "The Second Coming"(My Answer) "When You Are Old&...
May 29, 2013

English 12
really need help guys :/ 1. Which of Yeats's poem opens with the symbol of a gyre, a spiral spinning out of control? (1 point) "Sailing to Byzantium" "The Second Coming" "When You Are Old" "A Prayer For My Daughter" 2. Which of the ...
May 29, 2013

Physics Acceleration
A baseball player hits a line drive. Just before the ball is struck, it is moving east at a speed of 38.8 m/s (87 mi/h). Just after contact with the bat, 1.05 10-3 s later, the ball is moving west at a speed of 46 m/s (103 mi/h). Find the ball's average acceleration.
May 26, 2013

What payment should be made on an invoice in the amount of \$3,400 dated August 7 if the terms of sale are 3/15, 2/30, n/45 and the bill is paid on August 19?
May 26, 2013

math
. City Cellular purchased \$28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to \$650. What is the net amount due if City Cellular sends the manufacturer a partial payment of \$5,000 on May ...
May 26, 2013

Healthcare Finance
Great Forks Hospital reported net income for 2007 of \$2.4 million on total revenues of \$30 million. Depreciation expense totaled \$1 million. a. What were total expenses for 2007? b. What were total cash expenses for 2007? (Hint: Assume that all expenses, except depreciation, ...
May 25, 2013

HealthCare Finance Bonds
John Doe is in the 40 percent personal tax bracket. He is considering investing in HCA bonds that carry a 12 percent interest rate. a. What is his after-tax yield (interest rate) on the bonds? b. Suppose Twin Cities Memorial Hospital has issued tax-exempt bonds that have an ...
May 25, 2013

Healthcare Finance
How did you get the 65,000? Bobpursley
May 25, 2013

Healthcare Finance
A firm that owns the stock of another corporation does not have to pay taxes on the entire amount of dividends received. In general, only 30 percent of the dividends received by one corporation from another are taxable. The reason for this tax law feature is to mitigate the ...
May 25, 2013

Pre-calc
The plane y + 4z = 15 intersect which axes?
May 22, 2013

world geography
i have done this test 2 times and faild it pleas help me !!!!!!!
May 19, 2013

world geography
1. In a/an _______ economy, the production of a wide range of manufactured products becomes more economically important than primary production and a service sector begins to develop. A. diversified B. developing C. production D. international 2. In reference to civil conflict...
May 19, 2013

Physics
An open organ pipe of length 0.744411 m and a closed one of length 1.10545 m are sounded together. What beat frequency is generated by the first overtone of the closed pipe with the fundamental of the open pipe? The speed of sound is 340 m/s. Answer in units of Hz
May 15, 2013

math
A major leaugue baseball player hits a ball 3 feet above the ground with a velocity of 103 feet per second in the direction of a 10 foot wall that is 300 feet from home plate. If the hit is at an angle of elevation of 34 degrees and there is wind blowing 22 feet per second in ...
May 14, 2013

math
A major leaugue baseball player hits a ball 3 feet above the ground with a velocity of 103 feet per second in the direction of a 10 foot wall that is 300 feet from home plate. If the hit is at an angle of elevation of 34 degrees and there is wind blowing 22 feet per second in ...
May 14, 2013

math
A major leaugue baseball player hits a ball 3 feet above the ground with a velocity of 103 feet per secon in the direction of a 10 foot wall that is 300 feet from home plate. If the hit is at an angle of elevation of 34 degrees and there is wind blowing 22 feet per second in ...
May 14, 2013

MATH HELP?!?!?!
2) organize your information... tagged *2008: 40 *2009: 16 *2010: 8 total caught *2009: 50 *2010: 30 Now, you can compare them. Like so, let's use the first one. You can compare the ratio of 16/40 = 50 / x where x is the total population so basically the proportion above ...
May 8, 2013

MATH HELP?!?!?!
3) Your poll isn't random because you have selected a particular day and particular studet (one who purchases hot lunch) their opinion. By doing so this will skew or make the poll inaccurate because only a certain group of people on a certain day were asked their opinions...
May 8, 2013

MATH HELP?!?!?!
Here are how to find your answers 1) *Mode: Which score occurs the most (which one repeats the most - ex. = 1,1,1,2,2,3 = since 1 is repeated three times this makes it the number that repeats most so it is the mode of the set) *Median: Place the numbers in order from smallest ...
May 8, 2013

Pre Calculus
Solve 2cos^2(2x)=1 I divided both sides by 2 and got this cos^2(2x)=1/2 But then I didn't know what to do after that... The part that has me stumped is that it's a cos^2(2x) not just a cos^2x. Any advice on what I should try next?
May 8, 2013

Chemistry
The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 23.0 mV at 25°C. Calculate the concentration of the Zn2 (aq) ion at the cathode. Can someone please breakdown how to do this so I can figure out the rest of ...
May 7, 2013

Chemistry
A solution is prepared by mixing 100 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the volumes are additive, what is the pH of the resulting mixture? kb for ammonia is 1.8x10-5
May 2, 2013

Chemistry
A solution is prepared by mixing 100 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the volumes are additive, what is the pH of the resulting mixture? kb for ammonia is 1.8x10-5
May 2, 2013

Health
1:false 2:false 3:true 4:true 5:true 6:false 7:true 8:true 9:false 10:true
May 2, 2013

Math
Hdhshsj
April 29, 2013

Calc
For z1 = 4cis(7pi/6)and z2 = 3ci(pi/3), find z1 · z2 in rectangular form. A.12 − 12i B.-12 − 12i C.12 + 12i D.12i E.-12i
April 29, 2013

Physics
To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights, heating or cooling systems, and hot water when not being used. In this chapter, we also speak of “energy conservation.” Distinguish between these two ...
April 28, 2013

Physics
April 28, 2013

Physics
To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights, heating or cooling systems, and hot water when not being used. In this chapter, we also speak of “energy conservation.” Distinguish between these two usages.
April 28, 2013

Physics
A park ranger wants to shoot a monkey hanging from a branch of a tree with a tranquilizing dart. The ranger aims directly at the monkey, not realizing that the dart will follow a parabolic path and thus will fall below the monkey. The monkey, however, sees the dart leave the ...
April 28, 2013

Physical Science
A park ranger wants to shoot a monkey hanging from a branch of a tree with a tranquilizing dart. The ranger aims directly at the monkey, not realizing that the dart will follow a parabolic path and thus will fall below the monkey. The monkey, however, sees the dart leave the ...
April 27, 2013

physics
To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights, heating or cooling systems, and hot water when not being used. In this chapter, we also speak of “energy conservation.” Distinguish between these two usages.
April 27, 2013