Friday
December 9, 2016

Posts by aj

Total # Posts: 338

Math
A printer takes 5mins to print 90 copies of a repor. At this rate, how many copies of the same report can it print in 1/2 hours
November 3, 2016

science
2.6 billion
October 25, 2016

algebra
The sum of two numbers is 100. Such that the first number is twice as large as the second number, when the second number is subtracted by 1.
August 15, 2016

Math
A running track consists of two straight sections with semi-circular ends. If the straight sections measure 100 metres and one compete lap on the inside of the track measures 1/2 k, what is the distance x between the two straights?
August 15, 2016

Calculus
What is the maximum area of a rectangle that has sides along the positive x-axis and y-axis and lies below the line 3x+2y=1
August 1, 2016

LA
she cant read aloud duhh
May 19, 2016

math
I mean i guess so, 385 representatives are their based on the population of each state, and 2 senators for each state. It seems like the most fair way of representation.
April 19, 2016

Algebra
Rene used a $4 off coupon to buy bows which cost $2 each. Write an inequality rene could use to determine the number of bows she can buy if she plans to spen more that $8. Then graph the solution set
April 16, 2016

Algebra
note that x>0 (x) + 5 = 806 * (1/x) is your set up Simplify: x + 5 = (806/x) Multiply both sides by x x(x+5) = (806/x) * x x^2 + 5x = 806 Set to zero (x^2 + 5x - 806) = 0 Factor! :D (x-26)(x+31) = 0 Set each factor to 0 (x-26) = 0 x = 26 (x+31) = 0 x = -31 so, x = {26,31} ...
April 12, 2016

Algebra
x^2 + 6x - 17 = 0 First separate x terms X^2 + 6x = 17 or 17 = x^2 + 6x remember that aX^2 + bx + c to complete square, divide b by two, and square it. 6/2 = 3. 3^2 = 9. Now add 9 to each side of the equation 17+9 = x^2 + 6x + 9 combine like terms: 26 = x^2 + 6x + 9 Now factor...
April 12, 2016

AR
you can make 20 bags of 5 pounds apples (1/4) * 4 = 1 4 apples = 1 pound 20 apples = 5 pound (1 bag) 400/20 = 20 ----- * = multiplication / = division Hope this helps :^)
April 11, 2016

Physics
your equation is: E = (hc/Lambda) E = energy h = planck's constant (6.626 × 10^-34 joule·s) c = speed of light (2.998 × 10^8 m/s) lambda = wavelength 1) h*c = 1.99 × 10^-25 joules-m note: when dealing with photons and electrons, we usually use ...
April 11, 2016

Science
Pretty sure its 1) a 2) c 3) B Explanation if you want to know why 1) Because there is no more forward acceleration of the car, the friction from the tires and the weight of the car will slow down. the the potential energy will eventually become thermal energy because the ...
April 11, 2016

Chemistry
What mass of ammonium chloride must be decomposed to prepare 134 grams of ammonia (NH3). Hydrochloric acid will also be produced.
March 23, 2016

Geography
which demographic group is correctly matched with its issue A.religious people - farm subsidies B.midwesterners - farm subsidies C.single parents - affirnmative action D.all are matched correctly
March 16, 2016

Computer Science/Pseudo Code Python
okay so start off the program with a menu pattern. create an int or char called menuchoice Have variables (int or char) from 1-6 or A-F as your menu option After you coded your menu, let your user enter their 2 numbers. So create 2 for int variables (num1,num2). now either use...
February 28, 2016

Programming
Nothings really wrong, only states go off of 2 characters. texas: TX Thats really the only thing i can think of. No one knows what state "a" is but everyone knows that "AR" is Arkansas.
February 14, 2016

College- US History
How has popular culture reinforced Cowboys of the West?
January 29, 2016

Math
Prove that cot²A(secA-1) = Cos A
January 28, 2016

Finance
****HELP PLEASE**** Given the following information, answer the following: TR=$3Q TC= $1,200 = $2Q 1. what is the break-even level of output? 2. If the firms sells 1,300 units, what are its earnings or losses? 3. If sales rise to 2,000 units, what are the firms earnings or ...
January 26, 2016

Maths
In a box of markers there are eight which have dried up and will not write. The box contains 15 red, 15 purple, 5 black and 10 white markers. A marker is picked at random from the box. Find the probability that a) it is red b) it is not black c) it is purple or white d) it is ...
January 26, 2016

Maths
The sum of two digits number is 7. In changing position of digits we get the number 9 less than the original number. What is number?
December 31, 2015

PHYSICS
If there is no dark matter, in order to explain our observations, our concepts of an important building block of the universe have to be incorrect. What is that building block and why do Astronomers overwhelmingly favor dark matter, which they cannot see, to explain our ...
December 14, 2015

Physics / Astronomy
If there is no dark matter, in order to explain our observations, our concepts of an important building block of the universe have to be incorrect. What is that building block and why do Astronomers overwhelmingly favor dark matter, which they cannot see, to explain our ...
December 10, 2015

math
how do I find how many times greater ? 9x10 to the 8 power is how many times greater than 3x10 to the 7 power?
December 9, 2015

maths
riposting this. the answer kindly supplied by Steve is beyond my understanding. all i want to know please is how long will the shadow be cast on the ground by a 3m tall vertical fence with the sun behind it as follows: THIS IS NOTHING TO DO WITH A LADDER A fence 3m tall is ...
November 4, 2015

maths
THIS IS NOTHING TO DO WITH A LADDER A fence 3m tall is erected vertically and parallel to a building that is 10m away please can someone tell me the maximum length of the shadow the fence will cast on the ground - thank you
November 4, 2015

maths
a fence 2m tall and 5m from a parallel building - what length is the shadow from the fence and how is this worked out?
November 4, 2015

Math
find the sum of 2 1/2 and 2/5
October 16, 2015

Math
2/3>3/ number that makes the statement true.. I am confused
October 13, 2015

Defective probability i need help
a. 0 = 0.0476 b. 1 = 0.1471 c. 2 = 0.2252 d. 3 = 0.2275
October 13, 2015

Social Studies
thanks Ms.Sue!
September 19, 2015

Social Studies
thanks
September 19, 2015

Social Studies
What was the main purpose of the settlers who established Jamestown? a.to trap animals and sell furs b.to find gold and silver c.to farm tobacco d.to collect sweetgrass for baskets Would it be B? I am thinking B,or C.
September 19, 2015

Math
The local health club is advertising a special for new members: no initiation fee to join and lnly $34.50 per month for the first year. If Andy joins the health club for one year, how much will he spend on membership?
September 14, 2015

Math
95.00
August 30, 2015

Math
How do I figure out this problem
July 7, 2015

Algebra
The time, t, required to drive a certain distance varies inversely with the speed, r. If it takes 12 hours to drive the distance at 60 miles per hour, how long will it take to drive the same distance at 85 miles per hour? A. About 7.08 hours B. About 5.00 hours C. About 1.42 ...
June 2, 2015

algebraic modeling
A toy manufacturer determines that the daily cost,C, for producing x units of a dump truck can b approximated by the function c(x)=0.005x^2-x+109 I got that the manufacturer must produce 100 units per day... What is the minimum daily cost?
May 13, 2015

math
Why Was the Engineer Driving the Train Backwards?
March 27, 2015

chemistry
Thank a bunch
March 13, 2015

chemistry
What volume of 0.050 M AgNO3, silver nitrate solution is required to reat completely with 60.0 mL of 0.025 M K2S, potassium sulfide?
March 13, 2015

Stats
.638
March 11, 2015

statistics
observational study
March 10, 2015

L.A
Is that the answer Anna ?
March 6, 2015

math -hw help
Determine whether the following regular tetrahedrons have an edge length that is a whole number, a rational number or irrational number. The surface are of a tetrahedron is given by the equation: SA = √ 3s^2 Surface are of regular tetrahedron A = 1.5 Surface are of ...
February 5, 2015

math (factors and products)
How could you use an area model to identify the binomial factors of a trinomial?
January 22, 2015

Math
How could you use an area model to identify the binomial factors of a trinomial?
January 21, 2015

physics
A soccer ball is kicked with an initial horizontal velocity of 16.5 m/s from a 92 meter high cliff. Determine the time it took the ball to reach the ground and how far the ball got from the edge of the cliff.
December 16, 2014

Algebra2
log2(x+8)-log2(5)=4
November 20, 2014

arithmetic
If you have 3 cups of pineapple juice and, how many total cups of punch can you make? Table: Ginger Ale - 40% OJ 25% Pineapple juice 20% Sorbet 15
November 3, 2014

Math
Write a word phrase for this algebraic expression. 6.5-h
October 28, 2014

Physics(Science)
Waves on a 5.0 m rope travel at a speed of 92 m/s. If the tension in the rope is 497 N, what is the mass of the rope?
October 26, 2014

elementary
Magic square 13.6
September 17, 2014

Physics
A dart is thrown horizontally with an initial speed of 14 m/s toward point P, the bull's-eye on a dart board. It hits at point Q on the rim, vertically below P, 0.19 s later. (a) What is the distance PQ? (b) How far away from the dart board is the dart released?
September 14, 2014

English
how do I start an Auto Biography? I mean what sentence should i start it with?
September 6, 2014

MATH HELP!!
Thank you very much!
August 20, 2014

MATH HELP!!
Thank you,also can you explain and the number that it would make please
August 20, 2014

MATH HELP!!
SID WROTE 541,309 ON HIS PAPER. USING NUMBERS AND WORDS EXPLAIN HOW THE NUMBER WOULD CHANGE IF HE SWITCHED THE DIGITS IN THE HUNDRED THOUSANDS AND TENS PLACES
August 20, 2014

trigonometry
16.11
August 17, 2014

cOLLEGE mAJORS
ACCOUNTING VS IT WHICH IS HARDER? WHICH IS EASIER?
August 12, 2014

math
2^5/2 - 2^3/2
August 9, 2014

Physics
You are standing on a fish pond wishing to catch a fish. How would you aim your fish gun in order to catch a fish which your eyes could see 20 cm below the surface of water ? will u aim higher , lower or exactly on the location of the fish as seen by your eyes ? find out what ...
July 27, 2014

Grammar
Before the items that are complete sentences, write S. Before those that contain fragments, write F. Before a run on sentence, write RS. 1. We often walk through the woods, picking berries and listening to the birds. Is this a run on sentence?
July 2, 2014

math
how can i plot values in a parabola graph if the values are fractions. it's my first time with this things so i don't understand
May 3, 2014

Science
All correct!
March 4, 2014

english
9 - C. 10 - C. Not sure about this one. 11 - C. 12 - C. 13 - A. Not sure about this one either. 14 - D. 15 - C. 16 - A. 17 - A. I'm pretty sure most of these are right.
February 5, 2014

english
I'm doing the test now if you still need answers.
February 5, 2014

Math
If I has plots of (3,2) and (8,6) how would I find the area in square units
January 29, 2014

Physics
A firefighter of mass 73 kg slides down a vertical pole with an acceleration of 5 m/s2. The acceleration of gravity is 10m/s2. What is the friction foce that acts on him? Answer in units of N
January 7, 2014

Spelling
Wordly wise 3000 book 7 lesson 7c vocab answers?
December 17, 2013

Science
Uranium-238 is less stable than oxygen-16. What accounts for this difference? (A) Uranium is a solid, while oxygen is a gas. (B) Unlike oxygen-16, uranium-238 has a nucleus in which repulsive electric forces surpass the strong nuclear forces. (C) Oxygen-16 has fewer electrons ...
November 20, 2013

math
9 ft
October 15, 2013

english
😂😂😂 y'all are too great
October 5, 2013

Math
If sin(x) = 1/3 and sec(y) = 29/21 , where x and y lie between 0 and π/2, evaluate the expression using trigonometric identities. (Enter an exact answer.) cos(2y)
September 23, 2013

English
What type of clause or phrase is italicized in the sentence below? The play, a three-act farce, amused everyone.
September 23, 2013

math
Pat worked 43 hours and received $7.25 per hour for regular pay and time-and-a-half for all hours over 40 hours. What were her weekly earnings?
September 6, 2013

physics
The drawing shows a uniform horizontal beam attached to a vertical wall by a frictionless hinge and supported from below at an angle θ = 38o by a brace that is attached to a pin. The beam has a weight of 346 N. Three additional forces keep the beam in equilibrium. The ...
July 16, 2013

math
what is missing number for magic square for 22, 111,72, 131
July 9, 2013

algebra 1
Graph each rational function;identify the domain and ranges;and compare the graph with the graph y=1/x. 1.y=-10/x 2.y=1/(x+3)+3
April 24, 2013

algebra 1
Graph each rational function;identify the domain and ranges;and compare the graph with the graph y=1/x. 1.y=-10/x 2.y=1/(x+3)+3
April 24, 2013

calculus
the telephone company is planning to introduce two new types of executive communications systems that it hopes to sell to its largest commercial customers. It is estimated that if the first type of system is priced at x hundred dollars per system and the second type at y ...
April 23, 2013

Science
What are some of the effects of the sun's radiation on the earth's atmosphere including the green house effect, conduction, convection and radiation?
April 10, 2013

math
32 subjects in a study were recruited by advertisements to participate in a study of attitudes and values toward wine. What assumption are you making about these subjects? (I noticed that the problem does not state it is a SRS.)
April 3, 2013

Science
Describe the apparent motion of the stars and planets that is caused by the revolution and rotation of the earth.
March 11, 2013

math
where did you get the 2 from ?
March 1, 2013

English
(Choose the correct answer) i hope/wish i was a bird
February 28, 2013

Chemistry
two D-glucose monosaccharide units
December 16, 2012

Trigonometry
Please show me the work so i understand 2. Find the reference angle of -11π/3. 5. If θ = –18°, find the exact value of θ in radians. 6.If θ = 3, find the value of θ in degrees correct to the nearest tenth of a degree. 13.The ...
December 12, 2012

Chemistry
pls. tell
November 28, 2012

sci
a car performs 40,000 j of work in 5 sec. what is the power of the car. what is the horsepower?
November 16, 2012

trig
the pendulum of a grandfather clock is 1.3m long. Determine the length of the arc through which the pendulum moves if it moves through an angle of 15
November 8, 2012

Microecon
Using the midpoints approach to the cross elasticity of demand-calculate the cross eleasticity the demand for golf at all 3 prices. Price Demand1 D2 D3 50 15 10 15 35 25 15 30 20 40 20 50 D1 -Income $50k per yr, movies $9 D2 -Income $50k -movies $11 D3 -Income $70k -movies $11...
November 1, 2012

Physics
A current of 4 A flows in a copper wire 10 mm in diameter. The density of valence electrons in copper is roughly 9 × 1028 m−3. Find the drift speed of these electrons. Answer in units of m/s.
November 1, 2012

Physics
A 63 Ω resistor is connected to a 4.7 V battery a) When the switch is closed, calculate the current I. Answer in units of A. A 7.4 Ω resistor is connected to a 4.7 V battery When the switch is closed, calculate the current I. A 69 Ω resistor is connected to a 4....
November 1, 2012

Physics
A certain lightbulb has a tungsten filament with a resistance of 28 Ω when cold and 144 Ω when hot. If the equation R = R0 [1 + α ∆T ] can be used over the large temperature range involved here, find the temperature of the fila- ment when it is hot. Assume...
October 31, 2012

physics
A typical color television draws about 2.8 A when connected to a 145 V source. What is the effective resistance of the T.V. set? Answer in units of Ω.
October 31, 2012

Physics
A wire with a circular cross section and a resistance R is lengthened to 3.77 times its original length by pulling it through a small hole. After being pulled through the hole, the total volume of the wire is unchanged. Find the resistance of the wire after it is stretched. ...
October 31, 2012

Physics
A skyrocket explodes 77 m above the ground. Three observers are spaced 106 m apart, with observer A directly under the point of the explosion. Find the ratio of the sound intensity heard by observer A to that heard by observer B. Find the ratio of the intensity heard by ...
October 21, 2012

Physics
An experiment requires sound intensity 0.942 W/m2 at the distance of 2.7 m in any direction from a speaker. What total sound power is required? Answer in units of W.
October 21, 2012

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