Tuesday
September 2, 2014

Posts by Sam


Total # Posts: 3,944

Math
Mr Townes created a 2foot wide garden path around a circular garden. The radius of the garden is 7 feet. He wants to cover the path in stones. If mr. Townes needs 1 bag of stones for every 5 square feet of path, how many bags of stones will he need to cover his garden path?
January 29, 2014

Algebra
A rectangular dog pen has a perimeter of 10 yd and a width of 2yd. What is its area?
January 29, 2014

college physics
To tighten a bolt, you push with a force of 76N at the end of a wrench handle that is 0.26m from the axis of the bolt. What torque are you exerting?
January 28, 2014

math
A ladder is 2 m long. It leans against a wall so that it is 90 cm from the base of the wall. How far up the wall does the ladder reach? Put your answer in m. Round to 3 sig fig.
January 28, 2014

Chemistry
How did you get -.52?
January 28, 2014

Chemistry
Colligative Properties The freezing point of distilled water was determined by recording a thermogram: -0.176 degrees Celsius. The freezing point of a 0.200 m (molality) solution containing an unknown, ionic compound was determined by recording a second thermogram: -.904 ...
January 28, 2014

chemistry
calculate the percentages by mass of the component element in sodium trioxonitrate(v)
January 28, 2014

Chemistry
The freezing point of a .200m solution: -.904 degrees Celsius.
January 28, 2014

Chemistry
Colligative Properties The freezing point of distilled water was determined by recording a thermogram: -0.176. The freezing point of a 0.200 m (molality) solution containing an unknown, ionic compound was determined by recording a second thermogram. a. Determine the freezing ...
January 28, 2014

Physics
A baggage carousel at an airport is rotating with an angular speed of 0.397 rad/s when the baggage begins to be loaded onto it. The moment of inertia of the carousel is 2440 kg·m2. Ten pieces of baggage with an average mass of 16.5 kg each are dropped vertically onto ...
January 27, 2014

Physics
A stationary bicycle is raised off the ground, and its front wheel (m = 1.70 kg) is rotating at an angular velocity of 21.9 rad/s (see the figure). The front brake is then applied for 1.35 s, and the wheel slows down to 4.47 rad/s. Assume that all the mass of the wheel is ...
January 27, 2014

algebra
thanks steve
January 26, 2014

algebra
suppose a ball is thrown upward from a height of 4.5 feet with an initial velocity of 21 feet per second. write an equation relating the time t and height h of the ball
January 26, 2014

English
the answer is b
January 26, 2014

English
no b
January 26, 2014

Steve
How do I find the vertex?
January 25, 2014

Damon
Sorry you were right my unit was wrong, thanks!
January 25, 2014

steve
As my final answer do I use ft or m ?
January 25, 2014

Damon
yes
January 25, 2014

Damon
Okay this time my answer came to be 39.4 m but it still says incorrect. Did I not do my calculations correctly?
January 25, 2014

Damon
When I did that My answer came to be .501 but it was marked wrong. Was that the answer I was supposed to get?
January 25, 2014

physics
A lighthouse that rises h1 = 47.0 ft above the surface of the water sits on a rocky cliff that extends d = 17.4 ft from its base, as shown in the figure below. A sailor on the deck of a ship sights the top of the lighthouse at an angle of theta = 29.3 degree above the ...
January 25, 2014

Damon
I know but which values do I plug in?
January 25, 2014

Damon
For part E which x and y do I plug in?
January 25, 2014

physics
Data: theta_1 = 44.9 theta_2 = 146.1 A = 4.8 cm B = 8.7 cm A)What is the x component of vector A? B)What is the y component of vector A? C)What is the x component of vector B? D)What is the y component of vector B? E)What is the magnitude of vector (A + B)?
January 25, 2014

Damon
yes in terms of vf. we are asked to combine different kinematic equations to drive xf. I believe the equation v=vo+at^2 can sub for vo. does this make sense?
January 25, 2014

Physics
A hot-air balloon is rising upward with a constant speed of 2.20 m/s. When the balloon is 2.50 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?
January 24, 2014

math
16 times 4 which equals 64 so the length of the rope was 64 inches
January 23, 2014

math
1/3 is the probability that Tom will score 24 or more times in tonight's game.
January 23, 2014

math
I do not understand what the question is.
January 23, 2014

maths
No it is actually 2 hundredths or 2/100. Hope this helps!
January 23, 2014

physics
A model rocket is launched straight upward with an initial speed of 47.7 m/s. It accelerates with a constant upward acceleration of 2.02 m/s2 until its engines stop at an altitude of 157 m. What is the maximum height reached by the rocket?
January 23, 2014

math
24 of each or 4 chicken paddies packs and 3 bun packs
January 23, 2014

Math
The answer is $510
January 23, 2014

Social Studies
I'm not so sure about the answers to these questions. Could you check my answers please? Thanks. Who led the federal troops that forced the Cherokee west on the trail of tears? -Andrew Jackson -Winfield Scott -William Henry Harrison** -Oliver Hazard Perry To win the ...
January 19, 2014

Math
What is the value of the following expression? - 3| -3 + 6| - 3
January 15, 2014

math
Eduardo thinks of a number between 1 and 20 that has exactly 5 factors . what number is he thinking of ? explain
January 13, 2014

Physics
how much energy is required to change 40 g of ice at -10 C to steam at 110 C?
January 12, 2014

Physics
a ball is given a velocity of 3.89 m/s at an angle of 32 degrees. Calculate the maximum height and the range of the ball after 5.0s.
January 12, 2014

Physics
A car traveling with an initial velocity of 68 km/h accelerates uniformly at a rate of 1.35 m/s^2 for 4.7s. Find the final speed and displacement of the car during the specified time interval.
January 12, 2014

Physics
A bus slows down uniformly from 75 km/h to 15 km/h in 12.55 s. How far did the car travel before stopping?
January 12, 2014

Physics
Henry walks 20 km west forgot his coat, so he turns and heads 13 km east. He decided to go another path to make up for the lost time and travels 30 km south and then moves west for 27 km. Calculate Henry's displacement.
January 12, 2014

physics
A child and a sled have a combined mass of 87.5 kg slides down a friction-less hill that is 7.34 m high. If the sled starts from rest, what is the velocity of the sled at the bottom of the hill?
January 12, 2014

math
Use synthetic division to find the quotient and remainder. (r^2-2r+2), (r-1)
January 11, 2014

Science Please HELP!!!
Which of the following are structures that rely on capillaries for exchange or movement of small molecules? 1 teeth, aorta, ureter 2 cartilage, epidermis, larynx 3 nephron, villi, alveoli 4 leukocytes, atrium, bronchi answer #2
January 8, 2014

8th Grade Connections Academy
What connection academy at ripon?
January 8, 2014

Science Please HELP!!!
Ms.Sue?
January 8, 2014

Science Please HELP!!!
1 teeth, aorta, ureter 2 cartilage, epidermis, larynx 3 nephron, villi, alveoli 4 leukocytes, atrium, bronchi answer #2
January 8, 2014

Science Please HELP!!!
Please anyone!!!
January 8, 2014

Science Please HELP!!!
Which of the following are structures that rely on capillaries for exchange or movement of small molecules?
January 8, 2014

Physics
A car of mass 900.0 kg accelerates away from an intersection on a horizontal road. When the car speed is 49.7 km/hr (13.8 m/s), the net power which the engine supplies is 4300.0 W (in addition to the extra power required to make up for air resistance and friction). Calculate ...
January 2, 2014

math
thank you starting to get it little by little
December 18, 2013

math
how would you do the following 12 divided by 2 7/8, 1 1/6 x 3 3/8 ,
December 18, 2013

math
How do you do the following 1 5/8 +2 7/24 and 1 3/8 divided by 2/4. NOT SURE OF THE FORMULA
December 17, 2013

math
Thank you. I thought so too
December 16, 2013

math
At the Pentagon there are921 feet along each outer side facade and 17.5 miles of corridorS inside it. All sides of the Pentagon are equal. What is the perimeter of the Pentagon
December 16, 2013

math
Is it 7.98 x2 x4.2 /1/2 =16.75?
December 15, 2013

math
The area of a triangle is 3.99cm2 . If the base is 4.2 cm, how do you find the height ?
December 15, 2013

science very urgent help?
Susan has heard that taking an over-the-counter ‘energy’ pill, which contains as much caffeine as a strong cup of coffee, makes people feel alert and ‘speedy’. She wonders if taking this pill will make a difference to the reaction times of people doing an ...
December 13, 2013

math
Tom has 58 cards
December 12, 2013

math
Tom and Max have 72 football cards.Tom has 2 more than 4 times as many cards as Max has. How many football cards does Tom have?
December 12, 2013

Geography
They sailed...(double post ;))
December 11, 2013

Social Studies (History)
Just google search it, @Nicole, it's not that hard honestly...
December 11, 2013

math
Yeah what Steve said
December 11, 2013

math
For the first one: if you have to, just list em all out Mugs: 6,12,18,24,30,36,42,48,54,60.... Shirts: 14,28,42,56,70.... See any numbers in common so far? Yep: the 42. So the 42nd guest will get both Second one: Can't figure it out, cuz not enough information, did you ...
December 11, 2013

Math - Precalculus - Parametric Equations/Geometry
Thanks, but I was wondering how you got the horizontal and vertical speeds, sorry I'm not that good at parametric equations yet :( Also how did you get that the angular velocity is 3*2pi / s? Thanks
December 11, 2013

Math - Precalculus - Parametric Equations/Geometry
A hockey puck of diameter 3 inches is spinning around its center at a speed of 3 counterclockwise rotations per second. The center of the puck is traveling at a speed of 24 inches per second at an angle of 45 degrees to the positive real axis. (a) At time t=0, the center of ...
December 11, 2013

math
If you buy one ticket you have a 1/2500 chance of winning. Thus, you're expected value is 5000/25$ = 2$ return for your 5$ ticket. So you get -$3.
December 11, 2013

College Algebra
C * x = C x = C/C C/C = 1 x = 1
December 11, 2013

College Algebra
slope = y2 - y1 / (x2-x1) = 7/5 perpendicular = -1/m so we have -5/7
December 11, 2013

College Algebra
Erm....? *I found them!* They're in the 3rd row before the = signs. Seriously though, I don't get what you're asking...
December 11, 2013

math
adult ticket = 3 * child ticket adult + child = 36 substitute in: 3 child ticket + child ticket = 36 4 child ticket = 36 child ticket = 9
December 11, 2013

algebra
ax^2 + bx + c = 1 plug in first value 4a -2b + c = 1 do the same for the others: 0 + 0 + c = 5 c = 5 16a + 4b + c = -59 so we plug in c into the equations with and b: 16a + 4b + 5 = -59 4a -2b + 5 = 1 4a = 2b -4 2a = b - 2 16a + 4b = -64 8(b-2) + 4b = -64 2(b-2) + b = -16 2b...
December 11, 2013

Math, HELP!
A concert venue sold 1425 tickets one evening. Tickets cost $40.00 for a covered pavilion seat and $30.00 for a lawn seat. Total receipts were $48,000.00. How many of each type of ticket were sold?
December 10, 2013

math
Thank you. I was going crazy trying to figure it out.Thank you for all your help in math
December 10, 2013

math
sorry i just dont get it.
December 10, 2013

math
Started with 125.87 -40 =85.87
December 10, 2013

math
IS IT 85.87 +40.00 =125.87 -22.25 =103.62 +22.25. so is it103.62?
December 10, 2013

math
This morning Tom deposited 22.25 in his bank account. At lunchtime he withdrew 40.00 and he found out that he had a balance of 85.87. What was his balance at the start of the day?
December 10, 2013

math
72 is what percent of 480? Write an equation.
December 10, 2013

math
15/23.25= x/100 then you cross multiply?
December 10, 2013

math
Estimate a 15% tip on a taxi ride that cost 23.25.
December 10, 2013

math
thank you!
December 10, 2013

math
36*108=3888 divided by 100=38.88?
December 10, 2013

math
108 is 36% of what number? Write and solve a proportion.
December 10, 2013

math
It is B.
December 10, 2013

math
What percent of 94 is 23? A.n/94=23/100 B.23/94=n/100 C.94/n=23/100 D.23/94=100/n
December 10, 2013

math
What number is 73% of 215? A.215=0.73n B.n=0.73*215 C.0.73=n*215 D.215=73n
December 10, 2013

Algebra2
srry :(
December 10, 2013

Algebra2
minus the first from the 3rd equation we get 3x-3x + 2y-2y + 3z -z = 7-1 2z = 6 z = 3 plug into the 2nd equation to get 5x+5y = 3-12 = -9 plug into the first equation to get 3x+2y = 4 Multiply the 2nd equation by 2 and the 1st by 5 10x+10y = -18 15x+10y = 20 minus first from ...
December 10, 2013

Parametric equations/Trigonometry - Lattice points
Thanks, but why is it a triangle and not a line I graphed it and it is a line do I have to connect the ends and stuff?
December 10, 2013

Parametric equations/Trigonometry - Lattice points
A lattice point is a point with integer coordinates. How many lattice points (x,y) with -100 less than or equal to x less than or equal to 100 and -100 less than or equal to y less than or equal to 100 are on the graph of the parametric equations x=30-40 cos t y=-50 + 30 cos t...
December 10, 2013

Geometry
volume = w * h * l surface area = 2wh + 2lh + 2wl So find something with dimensions that multiply up to the same number but the surface area is different, for example if w = 1 h = 2 l = 8 compared with w= 1 h = 4 l = 4 It would give different surface areas 4 + 32 + 16 8 + 8 + 32
December 10, 2013

Trigonometry
ww w . wolframalpha . c om
December 10, 2013

Calculus
:)
December 9, 2013

Chemistry
I have a similar question and I got 1.7x10^-8 but would we have to multiply this value by 2?
December 9, 2013

English
I suppose so, if she meant a journal entry, you should probably write it as a journal entry.
December 9, 2013

science
P = W(joules)/t(time in sec) 120J / 5 seconds = ?
December 9, 2013

Language Arts
? @ zamaya @ sandy, we were given no info, no story...
December 9, 2013

Astronomy
Erm...I don't think we're going to solve all these problems for you you need to at least make some effort
December 9, 2013

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