Friday
December 9, 2016

Posts by don

Total # Posts: 573

Finance
Ron starts with a $100,000 mortgage at 8% for 30 years, annual payments. Ten year into the mortgage Ron is able to refinance the balance of the mortgage at 6%. a) If he chooses to refinance for 20 years what would his new payments be?
December 1, 2016

Finance
Ron starts with a $100,000 mortgage at 8% for 30 years, annual payments. Ten year into the mortgage Ron is able to refinance the balance of the mortgage at 6%. a) If he chooses to refinance for 20 years what would his new payments be?
December 1, 2016

Maths
Please, Damon, I need the rule write in Formulas.
November 1, 2016

Maths
Four numbers 2, -3, 5 and -7 are arranged in a pattern as shown. 2, -3, 5, -7, 2, -3, 5, -7, 2, -3 .......... what is the 2005 number?
November 1, 2016

easy math
What value of c makes x^2 + 6x + c a perfect square trinomial? 3 6 9 12
October 28, 2016

easy Math
A soccer ball is kicked upward from a hill and then falls to the ground. The height, in feet, of the ball after t sec is modeled by the function h(t) = –16t2 + 26t +12. What is the initial height of the ball? –16 ft –12 ft 12 ft 22 ft
October 28, 2016

Math
Bakery salary $24,000 Kitchen salary $26,000 Catering salary $30,000 Bar salary $30,000 Server/host $25,000 What department has the largest difference between the highest and lowest employee
October 7, 2016

Math
Number of employees in Kitchen is 2 Salary is $52,000 Avg. cost of employee 26 If the avg. cost per salaried employee increase by $4,000 in the kitchen department, what is the new average cost per employee in the department
October 7, 2016

Language
What word means the opposite of offensive Affable Zealous Acclivitous Intimate Synergetic
October 7, 2016

Math
Start at 5. Create a pattern that adds 3 to each number. Stop when you have 5 numbers.
September 22, 2016

Introduction to algebra
What's your answer?
September 12, 2016

math
I believe South, but I could be wrong.
September 12, 2016

math
What is your answer? Then we'll correct it.
September 12, 2016

Technology
Never mind. I figured it out. I'm not trying to be rude.
September 12, 2016

Technology
Are you there?
September 12, 2016

Technology
Microsoft
September 12, 2016

Technology
To insert clip art into a document, what step should I take immediately after i find the clip art I want to insert? a. Use scroll bars to view more choices of clipart. b. Click on the clip art image. c. Click on the clip art button. d. Click insert tab at the top of the screen...
September 12, 2016

Math
100(1+100) Example : 1+2+3+…+100= ----------- 2 Simplify: (x+1) + 2(x+1)+ …+1000(x+1)
August 20, 2016

math
What you want to do is cross multiply since 2/3 = 6/x, when you cross multiply, you get 2x=18 x=9 2:4 = 1:2 so you can just double 6 or 2/4 = 6/x 2x=24 x=12 Therefore the perimeter of the triangle is 6+9+12 Answer: 27
July 13, 2016

English
It is not from the benevolence of the butcher the rewer, or the baker, that we expect our dinner, but from their regard to their own interest.
March 17, 2016

math
If you place $2,000.00 in a saving account with an interest rate of 4.5% month versus an account with a rate of 3.75% month, how much more interest could you earn in that month using the first account?
March 14, 2016

Math (Help Please)
Okay I'll try I hope I don't make a bad grade
March 6, 2016

Math (Help Please)
Then 4,5,6... I just need to get the understanding of how t do them
March 6, 2016

Math (Help Please)
Okay I'll show my steps. 2. Yeah I see D is wrong now. I say B.... 7x2=14 3. I still don't know that one cause I need a little more help
March 6, 2016

Math (Help Please)
Oh sorry. 1.C 2.D 3 Idk. 4.C 5.A 6.D Am I right
March 6, 2016

Math (Help Please)
1. Which of the following shows how this expression can be simplified? 2x + 6 + 3x − 4 A. x − 2 B. x + 2 C. 5x + 2 D. 5x − 2 2. Which is equivalent to the expression below? 7(2p − 1) A. 7p B. 14p − 1 C. 14p − 7 D. 14p − 8 3. Factor ...
March 6, 2016

FIN 301
1. Cliff Arthur has equally attractive job offers in Miami and Los Angeles. The rent ratios in the cities are 8 and 20, respectively. Cliff would really like to buy rather than rent a home after he moves. Explain how to interpret the rent ration and what it tells Cliff about ...
June 20, 2015

Physics
a 475 kg pre-stressed concrete beam is to be raised 10.0 m in 24.0 s. how many kw of power is needed to for the job
April 2, 2015

physics
Show that the kinetic energy of two particles with mass m1 and m2 split into the energy of the centre of mass and the kinetic energy of relative motion.
March 9, 2015

physics
A car covers half a distance at a velocity of 80km/h and the other half at 60km/h,what is the average velocity of the car?
March 9, 2015

English LAST 1. (:
It's about MLk I Have A Dream speech. Why does King use the rhetorical technique of parallel structure in his speech? A)to show that he is aware of the time that has passed B)to show that others are not aware of the time that has passed C)to show that two or more ideas ...
February 3, 2015

English **One Question**
thank you :-)
February 3, 2015

English **One Question**
In a sense we have come to our nation's capital to cash a check. When the architects of our republic wrote the magnificent words of the Constitution and the Declaration of Independence, they were signing a promissory note to which every American was to fall heir. This note...
February 3, 2015

Chemistry
ys
November 20, 2014

algebra
This is similar to what I just answered earlier. x = total cost y= # of motors bought 150 = x*y solving for y: 150/y= x <--- (1) now we know: 150=(x-2)*(1+y) <--- (2) substitute using (2) and (1) we get : 150=((150/y)-5)*(1+y) 30 = y^2+y y^2+y -30= 0 (y+6)(y-5)=0 y = -6...
November 6, 2014

algebra
Sorry, made an error. once you complete the square: (y+10)^2 = 3600 solving for y gives you 50 so 50 calculators. you could also used the quadratic formula to solve for y and get the same answer.
November 6, 2014

algebra
x=cost of calculator y=number of calculators 350=(x-2)*(20+y) <-- equation 1 we know that total cost = cost per calc * number of calc bought 350 = x*y so 350/y = x <-- equation 2 we can substitute x from equation 2 into equation 1 350=((350/y)-2)*(20+y) solving this you ...
November 6, 2014

algebra
You will have two roots (two answers).
November 6, 2014

algebra
reciprocal means 1 over the number x + 1/x = 29/10 solve for x to get your number
November 6, 2014

Physics
Momentum formula: p=mv where p=momentum m = mass v= velocity p/m = v once you solve for v now apply: v^2=v_i + 2*g*h v=what you got from momentum v_i = starting speed = 0 g= 9.81 h=?????
November 5, 2014

Math
Beth's time = 7.8 seconds Amy = 7.8 -2.5 = ???
November 5, 2014

physics
conservation of momentum.. (1/2)*m*v = (1/2)*m2*v2 m = 3 v = ?? <-- speed of spitball m2 = 40 + 3 = 43 (added the sum because assuming that the spitball sticks to the carton, that's the total mass) v2 = .3 solve for v
November 5, 2014

physics
Conservation of momentum problem since system is a rest before firing 0 = m1*v1 + m2*v2 everything is given in problem besides v1 So solve for v1
November 5, 2014

physics
Another conservation of momentum problem m1*u1+m2*u2 = m1*v1+m2*v2 m1 = 250 = .25kg u1 = 1.5 m2 = 4 v1=.89 solve v2
November 5, 2014

Math
Is there a figure that comes with this?
November 5, 2014

math Help!!!!!!
Area of a square: A=s^2 You are given the area so: 160=s^2 solve for s So I agree with your answer.
November 5, 2014

physics
F=ma where a=9.81m/s^2 (gravity) solve for m now use the formula: (1/2)m*v^2 + m*g*h = m*g*h2+(1/2)*m*v2^2 m=755 v=0 h=10 (starting height) h2=0 (final height) v2 = ?? this is what we're trying to find. try to solve for v2 given the equation.
November 5, 2014

physics
For constant velocity: F = μk*W
November 5, 2014

PHYSICS
I'm guessing it depends on the direction of the magnitude. if both are positive |3+4|=7 if one is negative |-3+4|=1 if the other is negative |3-4|=1 So considering all the possibilities, it can't be anything besides 7 and 1
November 4, 2014

Physics
Could you post the whole question? From what's given, there are lot of questions you can ask from that statement.
November 4, 2014

algebra
Given: 96 calories in a 3/4 cup serving We need to find out how many calories in 5 cup. Solution: Set up a equation for the ratio of calories to cup serving. 96/(3/4) = x/5 Solve for x to get your answer
November 4, 2014

Market Research
Let N  6 and n  3. For purpose of studying sampling distributions, assume that all population values are known. Specically, y1  98, y2  102, y3  154, y4  133, y5  190, and y6  175. We are interested in yU, the population mean. Two ...
November 3, 2014

math
Ah, that is true! at 12 minutes he did climb 12 meters and it took him another .45 seconds to climb the rest. Wow, I completely neglected some stuff here. Thanks for clarifying Steve!
November 3, 2014

math
Hmm… The wording in this problem is a little tricky to me, so I'm assuming that its an alternating pattern (poor monkey). For the first minute the monkey is at 4 meters For the second minute monkey is at 2 meters ( because he slips down) So basically every 2 minutes, ...
November 3, 2014

any math tutor want to check my work, not feeling too confident
I guess this is a calculus problem. When I drew this out, I got a right triangle x = length the foot is from the wall = 4 6 = length of ladder = hypothenuse h = unknown height of wall dx/dt = .5 m/sec use pythag theorem to find h: x^2 + h^2 = 6^2 4^2+h^2 = 6^2 h =4.47 Now find...
November 3, 2014

physics
w w w.physicsclassroom. com/class/1DKin/Lesson-1/Scalars-and-Vectors
November 3, 2014

physics
First break your vector up into x and y components. Since its angled at 30 degrees with the horizontal, the x component with have cosine in it and sin for the y component. x component = 170cos30 y component = 170sin30 where y is your vertical component.
November 3, 2014

maths
Number of periods = 20 Years * 2 (periods per year) = 40 PV= $1600 i/2 = 13.5%/2 = 0.0675 FV = ? = PV * (1 + i/2)^N = 1600 * (1 + 0.0675)^40 = $21,819.02
November 3, 2014

Solving inequalities
g + 3 > 6 move 3 to right side g > 3
October 31, 2014

physics
Did you draw the free body diagram first?
October 30, 2014

Algebra
Look at the original equation: 6x^3 + 12x^2 + 4x + 8 You can factor a 2 out of the whole equation: 2(3x^3 + 6x^2 + 2x + 4) Now try to factor inside of the parenthesis: How I factored it was I just did trial and error lol, I just takes some practice, when once you get good at ...
October 30, 2014

math
Total number of socks = 6+4 = 10 For the first pull: There are 6 purple socks out of 10 total socks 6/10 At his second pull, lets assume that he luckily pulled a purple sock out There are now 9 socks total because he pulled one out, and 5 purple socks left because we assumed ...
October 30, 2014

TYPO sorry
m = (-2-(-5)5)/(6-1) should be m = (-2-(-5))/(6-1) m = 3/5
October 30, 2014

ALgebra
Also, for the first question the answer is y = 0*x - 3 I think you just made a typo
October 30, 2014

ALgebra
To find the equation for a line we use the formula Y = mx+b where m = the slope where b = the intercept So you are given two points (1,5), (6,-2) You first need to find the slope of that line: m = (y2-y1)/(x2-x1) m = (-2-(-5)5)/(6-1) m = 3/5 <---- slope now that you have ...
October 30, 2014

Hydraulic Physics
20/25 = F/50 F = (20/25)*50 F= 40 N
October 29, 2014

Hydraulic Physics
No need for gravity. F1/Area1 = F2/AREA2 Solver for F1
October 29, 2014

Dudas
They key thing you need to know is what the center of mass formula is. Center of mass: (m1*x1+m2*x2)/(m1+m2) So at initial center of mass: (86*9+55*2)/(86+55) = 6.27 m So now do apply the same equation when they switch position: (55*9+86*2)/(86+55) = 4.73 m So now find the ...
October 29, 2014

Physics
How did you start this problem?
October 29, 2014

Physics
Just a quick question… Did this problem come with a figure? I can't tell if those angles are along the horizontal or vertical.
October 28, 2014

physics
Veocity = distance / time You are given a distance of 40m and time of 1.9s
October 28, 2014

physics
When doing these types of physic problems or actually any physics problem, write down what's given. m=57.5 kg v_f= 58.9 m/s v_i = 0 (because it was a rest, not moving) t = 14.4 s g=9.81 m/s^2 The apparent weight is: W = F + m*g F=ma Everything is given to us in the problem...
October 28, 2014

Algebra
I almost agree with Aaliyah. Expressions do not need an equal sign so you can just write: 2m+7 but everything else that Aaliyah has posted is on point.
October 27, 2014

math
Set this up as a system of equation then solve: x = chalk y = stapler x+2y = 10 <--- equation 1 3x+2y = 18 <---- equation 2 Now, there are many methods when solving systems of equation, but I would use substitution method for this problem. Look at the first equation: x+...
October 27, 2014

Math
Actually after reading the problem, I think I rounded wrong. 338700 should be the correct answer.
October 27, 2014

Math
Set up an equation then solve: 320000 = x - x*(.055) where x is the amount they must sell their house for minus the 5.5 interest rate and still maintain 320000 x = 338624 But it says to round to the nearest $100, so x = 338600
October 27, 2014

Physics
Whoops, I think my units are off because since k is measured in N/m I need to convert cm to m Answer should be .03 Joules
October 27, 2014

Physics
Potential Energy of the compressed string at x=3.0cm: W = (1/2)*k*x^2 where k = spring constant = 15 N/m x = distance = 3.0 cm W = (1/2)*15*3^2 W = 67.5 Total work: W_t = (1/2)*k*x^2 where x = 4+3 = 7 W_t= (1/2)*15*7^2 W_t = 367.5 W_t - W = 367.5 - 67.5 Work needed for the ...
October 27, 2014

math
For the first problem just use a calculator to convert everything into decimals. a= 3.5 b = sqrt(15) =3.87 c = sqrt(1/16) = .25 d = 26/100 = .26 It's clear after converting everything, that choice b is the greatest Numer 2: Irrational numbers are numbers that cannot be ...
October 27, 2014

Math
For everyone 1 goat, there are 4 sheep. 50*4 = 200 200 sheep
October 27, 2014

Math
Set up an equation: (1/4)x = (2/3)*60 Solve for x to get how much Peter has x = 160 160 + 60 = 220
October 27, 2014

Physcis
There's a formula for this! R = R_o * A^(1/3) R_o =1.3*10^-15 m A = nucleon number which in your case is 85 R = (1.3*10^-15)* 85^(1/3)
October 27, 2014

Math
a = (max-min)/2 d=(max+min)/2 is period given in the problem?
October 27, 2014

physics
If you want to check your answer, I got 283.19N
October 27, 2014

physics
I wish i could post a link of my FBD here, but the website won't allow any links to be posted. It's really hard to explain on here if you can't see a free body diagram. Could you show me how you started it and maybe I can try to follow what you're doing?
October 27, 2014

physics
John, first draw a free body diagram. then break each vectors up into x and y components Fx = 5.6cos75 - 3.8cos45 Fy = 5.6sin75 - 3.8sin45 Direction: tan^-1(Fy/Fx)
October 26, 2014

algebra
A(t)=3-2t^2+4^t just plug 2 in for t to get A(2) then plug 1 in for t to the given equation to get A(1) Then A(2) - A(1)
October 26, 2014

Math
Thats correct so far.
October 26, 2014

Physics
Part a) Assume that downward is positive for this problem. V=V_o + g*t V_o = 2.13 g=9.8 t=4.38 V=2.13 + (9.8*4.38) V = 45.1 m/s part b) x= V_o*t + (1/2)*g*t^2 x=(2.13*4.38)+(1/2)*9.81*4.38^2 x=103.43 note that the helicopter is going down at: x1=2.13*4.38 = 9.33 X = x - x1 X...
October 26, 2014

algebra
Wait Mr. Reiny, I think there is a typo. 3x^2+x-2=0 So there should be two roots x= -1 x = 2/3 And since the question is asking for "integer", I guess only -1 works since 2/3 is a fraction which is not an integer.
October 22, 2014

algebra
Equation: 3x^2 + 1*x = 2 I don't think that equation will factor, so you're going to have to use the quadratic formula to find what x is. 3x^2 + x - 2 = 0 I got x to be -1 and 2/3 Let me know if you got the same from applying the quadratic formula
October 22, 2014

physics
So it takes the blade .398s to move 90 degrees a full circle is 360 degrees 360/90 = 4 So time it takes to move around whole circle: T = .398*4 = 1.59s Velocity = Distance / time Distance in this case is the circumference of circle: C=2*pi*r where r is radius so C = 2*pi*(.352...
October 22, 2014

Algebra
First find the slope of the line through those coordinates. Slope formula: m = (y2-y1)/(x2-x1) m=(7-3)/(4-5) m=4/-1 m=-4 So the slope is -4 Now use the point slope formula: y-y1=m(x-x1) y-3 = -4(x-5) y-3=-4x+20 y=-4x+23 You will get the same result if you use the other ...
October 22, 2014

math
First you have to find how much each chairs cost 560/16 = 35 So each chair cost $35. 35 * 24= 840
October 22, 2014

PHYSICS
Part a) Moment of Ineria for a sphere (formula is different depending on the shape: I = (2/5)*m*r^2 I = (2/5)*14.5*.120^2 = .0835 Angular momentum = I * angular velocity .0835 * 6.15 = .51 kgm^2/s Part B) Kinetic energy = (1/2)*.0835*(6.15)^2 = 1.579 J
October 22, 2014

physics
Is that the whole question? I'm guessing to break that force up into x and y components Fx = 52.8cos18 Fy = 52.8sin18
October 22, 2014

Math - Please Help Check My Answer
The answer the student has is correct. c = -1/13 The correct answer is A The answer is negative.
October 22, 2014

physics
D = speed * time just make sure to convert your units. Give it a try!
October 22, 2014

guidance
Key word: NOT B.
October 22, 2014

Physics
oops tan^-1(368.85/190.5) = 62.68
October 21, 2014

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