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Questions Asked on February 15, 2015

would the derivative of f(x)=(7^x)(x^7) be f'(x)=(7^x ln7) (7x^6)?
1. 3 answers
2. asked by Sara
3. 370 views
A newspaper carrier has %5.75 in change. He has ten more quarters than dimes but two times as many nickles as quarters. how many
1. 1 answer
2. asked by Tammy
3. 525 views
Because a concave lens cannot form a real image of a real object, it is difficult to measure its focal length precisely. One
1. 0 answers
2. asked by Ted
3. 1,278 views
16. What type of instrument measures seismic waves? A. Mercalli scale B. Seismic scale C. Seismogram D. Seismometer D?
1. 3 answers
2. asked by Sarah
3. 765 views
Galileo's first telescope used a convex objective lens with a focal length f = 1.65 m and a concave eyepiece. When this
1. 1 answer
2. asked by Samantha
3. 1,263 views
A particle moving along the x-axis has its velocity described by the function v =2t squared m/s, where t is in s. Its initial
1. 1 answer
2. asked by Joan
3. 1,652 views
I need help finding real life examples of these topics1. The need to fight discrimination can be done by embracing who you are
1. 1 answer
2. asked by Amy
3. 509 views
Ethylene gas (C2H2) can be formed from the reaction of calcium carbide (CaC2) with water. What is the reaction rate if 14.2
1. 1 answer
2. asked by danny
3. 642 views
If the breakdown half-life of a pesticide applied to a farmer’s field is 3.50 days, then what is the rate constant for this
1. 1 answer
2. asked by danny
3. 474 views
In which of the following reactions is ΔE closest in value to ΔH?HNO3(aq) + Na2(CO3)(aq) = NaNO3(aq) + H2O(l) + CO2(g)
1. 1 answer
2. asked by danny
3. 709 views
An aeroplane flies 520 km north 45 degrees west then 387 km east . it is then noted that the plane is due north of its starting
1. 2 answers
2. asked by Difficult
3. 853 views
For his next trick, a magician will draw a “royal flush” – 10, Jack, Queen, King and Ace of the same suit – in the exact
1. 1 answer
2. asked by probability
3. 486 views
find the dimensions of the subspaces of R^2 spanned by the vectors (1,3), (1,-1)?
1. 1 answer
2. asked by maricel
3. 391 views
Can someone please explain how to solve this type of question?Determine the maximum and minimum value of the function f(x)=3x3^x
1. 1 answer
2. asked by Sara
3. 478 views
So far john has run 1/4 of the way to school and walked 3/8 of the way.What fraction of the distance to school does john have
1. 3 answers
2. asked by Anonymous
3. 877 views
18. Which of the following is a factor that determines the composition of magma? A. Texture B. Elasticity C. Color D.
1. 4 answers
2. asked by Sarah
3. 1,020 views
6 mol sample of Cu2S is roasted in excess O2 to yield Cu metal and SO2. Calculate the mass of Cu metal produced
1. 1 answer
2. asked by Ana
3. 658 views
A rectangular and two circular cut-outs of metal sheet of negligible thickness are used to make a closed cylinder. The
1. 2 answers
2. asked by kudu
3. 722 views
1.2048g sample of impure Na2CO3 is dissolved and allowed to react with a solution of CaCl2 resulting CaCO3 after precipitation,
1. 2 answers
2. asked by Ana
3. 3,690 views
Radioactive waste is difficult to dispose of due to the long time periods needed before the radiation effectively disappears.
1. 1 answer
2. asked by danny
3. 686 views
Suppose 100 moles of a chemical is spilled into a lake. After 15.0 days, the total amount of the chemical in the lake 3.50
1. 1 answer
2. asked by danny
3. 651 views
The activation energy of a reaction is typically determined by calculating the rate constant for the reaction at two
1. 1 answer
2. asked by danny
3. 798 views
Based on reaction kinetics, which of the following pairs of reactions and reaction rate equations represent elementary
1. 0 answers
2. asked by danny
3. 550 views
Given that log4 = 0.6021 and log6 = 0.7782, without using mathematical tables or calculate, evaluate log0.096.
1. 8 answers
2. asked by kudu
3. 3,803 views
A 5-foot parking meter has a 4-foot shadow from a nearby streetlight. The streetlight is 15 feet tall. How far is the
1. 1 answer
2. asked by Lorri
3. 510 views
A liquid spray of mass 384 g is packed in a cylindrical container of internal radius 3.2cm. Given that the density of the liquid
1. 2 answers
2. asked by kudu
3. 979 views
Two-stroke motor boat engines emit a large amount of partially burned fuel into the water. One of the more common chemicals is
1. 1 answer
2. asked by danny
3. 448 views
In your opinion what do you think is more important, civil liberties or security? Do you think that one outweighs the other?
1. 1 answer
2. asked by Keith
3. 392 views
With the recent terrorists threats that the US has had for example the bombings at the Boston marathon, do you think the
1. 1 answer
2. asked by Keith
3. 389 views
Does inspirational appeal always have to be engaged from a "top- down" approach? Can a leader develop a team where he becomes
1. 1 answer
2. asked by Keith
3. 420 views
Calculate the molar extinction coefficients for carotene and chlorophyll using the peaks of highest absorption and Beer’s
1. 1 answer
2. asked by John
3. 590 views
Calculate the horizontal and vertical components of a 280 N force pulling upwards at an angle of 33 degrees to the horizontal ?
1. 2 answers
2. asked by Tatum
3. 796 views
Calculate the components parallel and perpendicular to the plane of 150N gravitational force acting on an object on a slope at
1. 1 answer
2. asked by Tatum
3. 605 views
a ball is dropped fron a building which is 50 metres high.calculate the ball's velocity just before it hits the ground.ignore
1. 1 answer
2. asked by judith
3. 418 views
The first three term of a geometric sequence are T1;T2 and T3. If T2=T1+4 and T3=T2 +9, determine the values of T1;T2 and T3
1. 2 answers
2. asked by mapule
3. 710 views
If 3/5/9 and 40/1/2 are the first and the last terms respectively, of a geometric sequence, determine the values of the fifth
1. 2 answers
2. asked by mapule
3. 468 views
The sum of the first n term of ab arithmetic series is given by Sn=5/2n^2+7/2nDetermine the first term and the common different
1. 1 answer
2. asked by mapule
3. 707 views
The top of a T.V tower casts a shadow of 35 metres long when the angle of elevation of the sun 57°40'.How high is the top of
1. 2 answers
2. asked by Anonymous
3. 580 views
An open bucket is in the form of a frustum of a cone,whose radii of bottom and top are 7 and 28cm.If the capacity of the bucket
1. 1 answer
2. asked by Anonymous
3. 605 views
The perimeter of triangle RXA is 39, PX=49 and AP=9.Find RX and RA.
1. 0 answers
2. asked by jude
3. 506 views
Find limit of 2x+1-cosx/3x as x approaches 0?
1. 1 answer
2. asked by sential
3. 601 views
The dissipation of heat through a composite material of width w centimetres can be modelled by the functionf(w) = 10/w -
1. 1 answer
2. asked by Simon
3. 393 views
kwala athikele ka sese diragetseng ko palamenteng labone one go tswerwe kopano
1. 3 answers
2. asked by spenza
3. 326 views
1).Find the sum of the n terms of the series Sn=1^2 + 3^2 +5^2+...+(2n-1)^22).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) +
1. 3 answers
2. asked by ben
3. 794 views
Using: r(t)=15+e*0.04tsin(pi*t/3)"Explain why it takes longer to reach maximum heigh of the first ride but will exceed it." Do i
1. 1 answer
2. asked by Paul J
3. 409 views
A sledge weighing 30 kg is pulled with a rope that makes 60° with the horizontal. The tension on the rope is constant and it is
1. 0 answers
2. asked by Ashly
3. 527 views
The perimeter of triangle RXA is 39, PX=49 and AP=9.Find RX and RA.I think it's under triangle bisector theorem. Help me answer
1. 1 answer
2. asked by jude
3. 550 views
A sprinter in a race can run 100m in 11.4 seconds. If it takes him 4.2 seconds to accelerate to top speed, what is the magnitude
1. 1 answer
2. asked by Allie
3. 598 views
The tortoise and the hare agree to a race. Of course, they are racing cars, having gotten tired of racing on foot. The tortoise,
1. 0 answers
2. asked by Allie
3. 735 views
Two boys,each of mass m,are standing at the back of a flatbed trolley of mass 4m.the trolley is at rest on a frictionless
1. 1 answer
2. asked by Rabelani
3. 951 views
After deciding to buy a new car, you can either lease the car or purchase it on a 3-year loan. The car costs $32,000. The lease
1. 1 answer
2. asked by Kelsey
3. 1,012 views
solve this probability :a box contains 10 marble, seven of which are black and three are red.three marbles are drawn,one after
1. 5 answers
2. asked by fadil
3. 2,982 views
What are some pros and cons in relevance within a school environment in organized sports?
1. 1 answer
2. asked by Monica
3. 577 views
HOW CAN I ANSWER IF THE QUESTION WAS DIFFICULTÉ
1. 1 answer
2. asked by OUMAIMA
3. 300 views
1).Find the sum of the n terms of the series Sn=1^2 + 3^2 +5^2+...+(2n-1)^22).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) +
1. 3 answers
2. asked by ben
3. 437 views
A drawer contains 20 black socks and 20 white socks. If the light is off and you reach into the draw to get your socks, what is
1. 2 answers
2. asked by Billy
3. 2,246 views
how to set up this problem? your new car's gas tank holds 12 gallons of gas, and you get 45miles/gallon. you travel 35miles and
1. 1 answer
2. asked by cessilee
3. 506 views
John was the first US astronaut to orbit Earth. His 3 orbit flight took 4 hours and 55 minutes. His spacecraft took off at 7:15
1. 1 answer
2. asked by bryce
3. 417 views
Joe drank 4 liters of water on Monday and 4 deciliters of water on Tuesday. How much more water did he drink on Monday than on
1. 1 answer
2. asked by Anonymous
3. 573 views
What must a teacher provide for an open-ended question to be successful?A. Heuristics B. Background information C. Discrepant
1. 1 answer
2. asked by Luis
3. 444 views
An 18-month-old child putting large beads in a plastic bowl and pouring them out isA. developmentally superior. B. normal and
1. 2 answers
2. asked by Luis
3. 434 views
As a protest against the umpire’s calls, a baseballpitcher throws a ball straight up into the air at a speed of 20.4 m/s. In
1. 1 answer
2. asked by John
3. 2,694 views
Free play, eating a snack, painting, hearing a story, and so forth are related to which of the followinglearning concepts? A.
1. 1 answer
2. asked by Luis
3. 453 views
21.Faith solves the equation 3(7x+4)=21x+4.How many solutions does she find? A. Infinitely many solutions B. 2 solutions C. 1
1. 1 answer
2. asked by Max
3. 756 views
If a United States dollar is worth $1.41 in Canadian money, how much is $100 in Canadian money worth in the united state money,
1. 2 answers
2. asked by Anonymous
3. 1,003 views
1.show the link between intrapersonal conflict and initiating relationship
1. 3 answers
2. asked by cee
3. 779 views
given 1,0.5,4,o.25,7,0.125,10assume this pattern continues consistently 1.write down the 33th term in this sequence 2.determine
1. 1 answer
2. asked by memory
3. 925 views
Show the link between intrapersonal conflict and initiating relationship
1. 9 answers
2. asked by lovedalia
3. 9,453 views
given geometric series is 256+p+64-32 determine the value of p?
1. 1 answer
2. asked by Bianca
3. 679 views
Show link between intrapersonal conflict and initiating relationship
1. 5 answers
2. asked by Precious thembuluwo
3. 804 views
A rally car traveled for 2 hours 40 minutes at an average speed of 120 km/h. The car consumes an average of 1 litre of fuel for
1. 1 answer
2. asked by kudu
3. 560 views
"write a program that asks the user to enter the price of an item and rate of discount. If discount is 9%, display the final
1. 2 answers
2. asked by George
3. 1,091 views
Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +....
1. 0 answers
2. asked by tolu
3. 309 views
Calculate the extension that would be produced by a 20N force if 15N extends a spring by 3cm
1. 4 answers
2. asked by zynell
3. 1,552 views
When a teacher chooses learning objectives for a child, which question should be asked?A. What should Kelly learn next? B.
1. 2 answers
2. asked by Luis
3. 574 views
On sept 14 Jennifer went to bank to borrow 4400 at 10.25% interest Jennifer plans to repay the loan on january 27 assume the
1. 1 answer
2. asked by Mick
3. 725 views
You are given a vector in the xy plane that has a magnitude of 85.0 units and a y component of -40.0 units
1. 1 answer
2. asked by Anonymous
3. 542 views
A small box is held in place against a rough wall by someone pushing on it with a force directed upward at 29.8° above the
1. 0 answers
2. asked by Madison
3. 546 views
A slide loving pig slides down a certain 21° slide in four times the time it would take to slide down a frictionless 21°
1. 1 answer
2. asked by Uina
3. 890 views
Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6) +....Answer this Question
1. 0 answers
2. asked by tolu
3. 338 views
If r = 1, will a sequence be convergent or divergent?
1. 2 answers
2. asked by Lucina
3. 506 views
FROM NOON TO 8 PM, THE TEMERATURE DROPPED 12.8 DEGREES. WHAT WAS THE HOURLY CHANGE IN TEMERATURE DURING THIS TIME??
1. 1 answer
2. asked by ROSE
3. 482 views
I am struggling with these question. I did the other seven. Someone please help me. I need some sleep.Are there universal
1. 3 answers
2. asked by Casey
3. 644 views
Why is the gas oils fraction more viscous than the kerosene fraction
1. 1 answer
2. asked by Victoria
3. 360 views
shows the link between intrapersonal conflict and initiating relationship.
1. 2 answers
2. asked by themba Sithole
3. 537 views
7. Give and interpret the 95% confidence interval for the hours of sleep a student gets.
1. 1 answer
2. asked by Anonymous
3. 596 views
identify six symptoms of intrapersonal conflict in a person.
1. 14 answers
2. asked by themba Sithole
3. 8,141 views
show that a=!0 , the equation p=2asin0cos0 describes the sphere centered(a,0,0) at radius|a|
1. 1 answer
2. asked by robert
3. 368 views
Daniel has 21 coins. All of them are either quarters or dimes. Altogether, he has $3.45. How many of each type of coin does he
1. 1 answer
2. asked by Student
3. 1,796 views
suppose 0.0139g of HNO3 is dissolved in 625 mL of aqueous solution. what is the pH
1. 1 answer
2. asked by joseph
3. 407 views
What average force is required to stop a 920kg car in 7.7s if the car is traveling at 83km/h ?
1. 1 answer
2. asked by Dre
3. 557 views
Gas Chromatography:The internal standard technique is used. A volatile component which does not interfere with the GC analysis
1. 0 answers
2. asked by Courtney
3. 478 views
x-(9x-10)+11 = 12x + 3(-2x + 1/3)I am not sure how to do this
1. 1 answer
2. asked by atnan
3. 1,036 views
The link between intrapersonal conflict and initiating relationship
1. 5 answers
2. asked by pilusa phyllis
3. 1,729 views
how do I do a question with fractions on both sides of the equation.example 5 over 6x-1 equals -1 over x + 1
1. 1 answer
2. asked by atnan
3. 440 views
A 170g cue ball is moving at 3.0 m/s when it strikes a 160g stationary numbered ball (object ball). After the collision the
1. 6 answers
2. asked by Mysty
3. 1,810 views
A linear regression of price on square footage of homes for sale found the equation price = 30275 + 144*sqft. In this equation,
1. 0 answers
2. asked by Macy
3. 749 views
Solve the inequality = 3- 2x ˂ x ¡Ü 2x + 5 and show the solution on the number line
1. 1 answer
2. asked by kudu
3. 464 views
replace the underlined objects with the correct object pronoun . be sure to use sewhen it is required 1/ ayer mi mama compro un
1. 1 answer
2. asked by ally
3. 530 views
In what way would the role of the Western culture anthropologist be different from another culture's anthropologist?
1. 1 answer
2. asked by MeMe
3. 572 views

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