Questions Asked on
May 6, 2018

Math
Drawing at least one queen when you draw a card from a standard deck 5 timesâ€‹ (replacing the card each time youâ€‹ draw, so there are always 52 cards in theâ€‹ deck)
asked by Anonymous 
Calculus
A particle moves along a curve so that its position at time t is given by the position vector . What is the particle's speed at time t = 1? I think it is 12.
asked by Anonymous 
Calculus
If f is a vectorvalued function defined by then what is f '' (pi/4)? I think it is .
asked by Anonymous 
Math
Can lotto be win mathematically? If yes what is the formula to produce genuine Numbers
asked by Jessica I 
Physics
So I have worked out the 'allowed' configurations for four particles which can occupy 5 different energy levels (1, 3, 5, 7, 9) and now I need to work out the average number of particles in a particular energy level (i.e 3). 1) 9,5,1,1 2) 9,3,3,1 3)
asked by Anon 
Maths
The angle of elevation of the top of a tower fron a point 42m away from its base on level ground is 36degree.find the height of the tower.NOTE:no calculation only scale drawing
asked by Anonymous 
Physics
An athlete with mass (m) running at speed (v) grabs a light rope that hangs from a ceiling of height H and swings to a maximum height of h₁. In another room with a lower ceiling of height H/2, a second athlete with mass 2m running at the same speed (v)
asked by Anonymous 
math
In a restaurant, a service charge of 10% is added to the price of a meal. What is the service charge on a meal costing £28.50?
asked by lauran 
chemistry
61.8g of A combines with 80g of B.30.9g of A combines with 106.5g of C, B and C combine to form compound CB2.atomic weight of C and B are respectively 35.5 and 66.6.show that the law of reciprocal proportion is obeyed.
asked by Animesh swain 
english
In the story Animal Farm how is the use of allegory as a rhetorical device different from simply laying out a nonfictional account, or an historical or statistical analysis of the period and the rise of the Communist Party? I am completely lost on this
asked by sue 
History
what were the four leading causes to the great depression
asked by Tom 
History
I need to make a timeline for the great depression. I need four lead up events to the stock market crash, then after that happens, i need four response events on how they responded to everything falling apart.
asked by Cam 
Math
M varies directly as the square of N. If N increases by 10%, find the percentage change in M
asked by Francis 
Chemistry
The basicity of tetra oxtail phage(vi) acid is 2. Explain this statement with an equation showing the reaction between the acid and potassium hydroxide.
asked by Ofoegbu Cynthia 
Maths
Locus of the tip of an oscillating pendulum
asked by M 
Math
jameel receive a salary of 3600 he saved 1\4 of it gave his mother 1\5 of it and used up1\10 of it on entertainment calculate how much money jameel still has left
asked by marva 
Maths
If k>0 and the product of the roots of equation x to power 23kx+2e power 2logk1=0 is 7 then sum of roots is?
asked by Swathi 
math
(width:20, length:22, height:1) If the height of the tabletop was 2 inches instead of 1 inch, the surface area would increase by _____. 44 84 40 880
asked by a dog 
Physics
Getting my head twisted around by the wording of these two questions, any help would be appreciated. My answers/ideas are below each question. 1) Brieﬂy explain whether there would there be more or fewer conﬁgurations available for the gas if the
asked by Anon 
Math
Sports Haven keeps an inventory of FITBIT Wearable Technology. Assume an inventory of 35 FitBits at the beginning of the year at a cost of $44.32 each. Additional FitBits were purchased as follows: 15 at $45.50 each on March 22, 30 at $45.80 each on May 2,
asked by Heyhi 
Math
Find a unit vector u in the direction opposite of ⟨−3,−9,−9⟩.
asked by George 
Math
t) Let a , b , c and y be the three dimensional vectors a =4j +2k ,b =−3i +4j +4k ,c =3i −j ,y =8i −7j Perform the following operations on these vectors: (a) c⋅a +a⋅y = (b) (a ⋅b )a = (c) ((c⋅c)a )⋅a =
asked by Carl 
Math
For the sequence 0,3,8,15,24; Write the general term (an equation) for the nth term of this sequence I got tn=n^21. Is this correct??
asked by Anonymous 
Math
So i have to find the first 5 terms of each sequence; 2^x1. Would I start at 0? I mean is 0 a natural number
asked by DAMIANN 
algebra
Solve the following inequality. Yuur answer show be enter with the variable on the the left side of the inequality. ( i.e. x< 1000) In part I you will enter your boundry point. In part II you will enter L for less than and G for greater than. 5x + 4< 39
asked by Anonymous 
english
In the story Animal Farm how is the use of allegory as a rhetorical device different from simply laying out a nonfictional account, or an historical or statistical analysis of the period and the rise of the Communist Party? Answer: Within an allegory
asked by sue 
Physics
Derive the coefficient of surface tension of mercury
asked by Evans 
MAth
solve equation by factoring 3m^28m=35 I need to show full work as well please help
asked by MIke 
History
What are 3 main events that led to the stock market crashing in 1929?
asked by Cam 
Math
Danielle will use the instructions in the box below to make a cleaning solution "Add 13 cups of water to every 2 cups of concentrated cleaner" Which of the following proportions can be used to find W, the number of cups of water Danielle will add to 5 cups
asked by Lyla 
Physics
Derive the coefficient of surface tension for water
asked by Evans 
Chemistry
What is the boiling point elevation of a solution of NaNO3 (85.0 g/mol, complete dissociation) made by dissolving 10.0 g of NaNO3 into 200 g of water (Kb = 0.512◦C/m)?
asked by Anon 
Algebra
Solve Using Quadratic Equation 5r^2 = 2r + 1
asked by Christopher 
chemistry
The basicity of tetraoxosulphat(iv)acid is 2 explain this statement with an equation showing the reaction between the acid and potassium hydroxide
asked by angel 
Math
Yep, another math question! The slope of a line passing through H ( 2, 5) is 3/4, which ordered pair represents a point on the line? A: (6, 1) B:(2, 8) C: (5, 1) D:(1, 1) No graph was with the question btw. I tried making a coordinate plane myself and
asked by Lyla 
Math
Compute the angle between the vectors i −j +k and −i −j −k . angle=
asked by Carl 
Maths
Make r the subject of formula t=2πr(r+h)
asked by Victor 
Math
A printer takes 50 minutes to print a total of 1200 identical blackandwhite posters and 500 identical coloured posters. The same printer takes 1 hour to print 2400 such blackandwhite posters. How many such coloured posters can the same printer print in
asked by chimingbell 
Chemistry
Which of the following compounds has the greatest molar solubility? A) AgBr, Ksp= 5.4 x 10^13 B) Ba3(PO4)2, Ksp = 3.0 x 10^23 C) Al(OH)3, Ksp = 1.9 x 10^33 D) MgF2, Ksp = 7.4 x 10^11 E) Pb(OH)2, Ksp = 1.2 x 10^15 I know the answer for this problem is
asked by Anon 
Math
Find all vectors v in 2 dimensions having v =5 where the i component of v is 3i vectors:
asked by George 
Math
The force on an object is F =−21j . For the vector v =4i −j , find: a) The component of F parallel to v : (b) The component of F perpendicular to v : The work, W, done by force F through displacement v :
asked by Tim 
Math
Solve the equation and show the check of the potential answer(s). If any answers are excluded values, state this on your answer sheet. a2 + 4a  5/a2 + 2a  a + 3/a + 2 =1/a2 + 2a Can someone please show me how to do this problem with checks? I have
asked by Neil 
Math
A car traveling from town A to town B at an average speed of 80 km/h took 54 minutes. Another car took 40 minutes to travel the same distance. What was the difference in their speed in km/h?
asked by k 
Physics
Please who can help me out. Derive the coefficient of surface tension for water
asked by Evans 
Physics
Someone please.... Derive the coefficient of surface tension for mercury
asked by Evans 
algebra
Simplify the expression: 4 times Start Root 18 End Root plus 5 times Start Root 32 End Root
asked by Anonymous 
History
what made the 1920's roaring
asked by Tom 
Calculus
A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear graph below for the time interval [0, 30]. At t = 0, the velocity of the car is 0 and its position is 10. What is the velocity of
asked by Anonymous 
Calculus
Oil flows into a tank according to the rate F(t)=(t^2+1)/(1+t), and at the same time empties out at the rate E(t)=(ln(t+7))/(t+2), with both F(t) and E(t) measured in gallons per minute. How much oil, to the nearest gallon, is in the tank at time t = 12
asked by Anonymous 
History
I am doing a History project and i need to know ranked 1 to 8, 8 most influential people of the 20's and 30's
asked by Tom 
English 4
In the story Animal Farm how is the use of allegory as a rhetorical device different from simply laying out a nonfictional account, or an historical or statistical analysis of the period and the rise of the Communist Party? I would like an analysis of
asked by sue 
Math
Can someone help me with a formula for this? A container ship left the Azores and traveled north. An aircraft carrier left two hours later traveling 5 km/h faster in an effort to catch up to it. After eight hours the aircraft carrier finally caught up.
asked by Peter G. 
History
who are the most influential people of the 1920's or 1930's Canadians
asked by Tom 
Math
Javier has a worm business in which he buys night crawlers from younger kids for 4 cents each and sells them for $1.25 per dozen. What is the percent markup on cost, to the nearest tenth of a percent? a. 160.4% b. 61.6% c. 96.8% d. 3.025%
asked by Heyhi 
Math
A grocer bought 300 pounds of bananas at 30 cents per pound. Experience at this store indicates that, as a result of aging, 30% of the bananas are sold at 80% of cost and another 10% are discarded. At what price per pound must the topquality bananas be
asked by Heyhi 
Math
A property management company furnishes skilled help to maintain apartment complexes. If employees are paid $16 per hour and the company wishes to maintain a 30% markup based on the employees’ hourly pay, what hourly rate should it bill property owners?
asked by Heyhi 
Math
Which of the following vectors are parallel? u=2i+4j2k, v=ij+3k w=i2j+k, p=i+j+k q=4i4j+12k, r=ij+k
asked by Tim 
Math
Assume you own a sporting goods business. Find the selling price for a tent costing $387, based on a 25% markup on selling price. $387/75% = $516 can anyone tell me if this is correct?
asked by Heyhi 
math
Blossom’s Flowers purchases roses for sale for Valentine’s Day. The roses are purchased for $10 a dozen and are sold for $20 a dozen. Any roses not sold on Valentine’s Day can be sold for $5 per dozen. The owner will purchase 1 of 3 amounts of roses
asked by raj 
Chemistry
A little confused on this question... I think I would need to take the solute and put it over the solvent, and then use molar mass. Confused on how density plays into this problem. Sucrose is very soluble in water. At 25ºC, 211.4 grams of sucrose will
asked by Anon 
Math
a)A man swims northeast at 5mph. Give a vector representing his velocity b)He now swims a river the same velocity relative to still water; the river's current flows north at 1.2 mph. What is the velocity relative to the riverbed?
asked by George 
math
After leaving a platform, the velocity with which a diver enters the water is directly proportional to the square root of the height of the platform. When a diver jumps off a 10meter platform, they will strike the water at 46 feet per second. In Acapulco,
asked by glemus