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Questions Asked on March 15, 2015

Two cylindrical containers are similar. The larger one has internal cross- section area of 45cm^2 and can hold 0.945 litres of
1. 3 answers
2. asked by kudu
3. 1,600 views
Assuming atmospheric pressure to be 1.01 x 10^5 Pa and the density of sea water to be 1025 kg/m^3, what is the absolute pressure
1. 2 answers
2. asked by N.
3. 4,532 views
A square brass plate is 2 mm thick and has a mass of 1.05 kg. The density of the brass is 8.4 g/cm3. Calculate the length of the
1. 5 answers
2. asked by kudu
3. 2,875 views
Please explain question. How many tons are in 1/2 of a ton.
1. 1 answer
2. asked by Milan
3. 446 views
In the next questions, a particle is moving along a horizontal line according to the formula:s=2t^4-4t^3+2t^2-1 a) the particle
1. 2 answers
2. asked by Anonymous
3. 2,103 views
Please explain this. How many tons are in 1/2 of a whole ton.
1. 1 answer
2. asked by Milan
3. 397 views
The integral of (x^2-4secxtanx) dx=I got x^3/3-4secx+c
1. 1 answer
2. asked by Sarah
3. 541 views
∫ tan^2 (x) sec^4 (x) dx∫ [tan^2 (t) + tan^4 (t)] dt ∫ [1-tan^2 (x)] / [sec^2 (x)] dx Trigonometric integral Please show
1. 2 answers
2. asked by Janice
3. 774 views
∫ (2x+1)/(x+1) dxPlease show steps if you work it. I think it's a partial fraction and worked with decomposition. Not sure
1. 2 answers
2. asked by Janice
3. 445 views
∫ x^3 √(16-x^2) dx evaluated between [0, 4]I know this is solved using trigonometric substitution, but I'm not sure how to
1. 1 answer
2. asked by Nick
3. 386 views
∫ x^3 √(x^2+9) dxIf you work it can you write the steps? I really don't like the way my teacher teaches it. Someone else
1. 1 answer
2. asked by Allie
3. 378 views
If you take out an $8,400 car loan that calls for 36 monthly payments starting after 1 month at an APR of 9%, what is your
1. 1 answer
2. asked by Libby
3. 956 views
Q. Pete wants to buy a stack of clothing that totals $200. The sales tax is 6% if you add tax to his total bill, what is Pete's
1. 5 answers
2. asked by Destinee
3. 639 views
Please answer and explain how you received this answer. A cargo van is carrying 20 identical steel cylinders. Each cylinder
1. 5 answers
2. asked by nicey
3. 1,991 views
The normal (perpendicular) line to the curve y=sqrt(8-x^2) at (-2,2) has slopeA. -2 B. 1/2 C. -1/2 D. 1 E. -1 I got A
1. 1 answer
2. asked by Sarah
3. 1,747 views
If f(5)=3 and f'(5)=-2, find the derivative of x^2f(x) at x=5.A. 0 B. -18 C. -12 D. -20 E. -80 I got D
1. 1 answer
2. asked by Sarah
3. 1,811 views
The circumference of a circle is increasing at a rate of 2pi/5 inches per minute. When the radius is 5 inches, how fast is the
1. 1 answer
2. asked by Anonymous
3. 5,300 views
1. What is the kinetic energy of a 0.50 g insect traveling in a straight line at 5.0m/s?a. 6.25j b. 1.25j c. 5.0j d. 250j Is the
1. 1 answer
2. asked by N.
3. 634 views
Si quieres trabajar en un laboratorio químico, serás _____.A. arquitecto B. científico C. mecánico D. veterinario
1. 4 answers
2. asked by Ciaria
3. 568 views
Como me gusta estar al aire libre y hacer ejercicio, creo que me gustaría seguir una carrera como _____.A. científico de
1. 3 answers
2. asked by Ciaria
3. 715 views
I tried to do these questions, however I can't seem to get the answer. Can someone help me? I would really appreciate it._______
1. 0 answers
2. asked by Anonymous
3. 424 views
Algún día tendrás que _____.A. seguir una carrera B. ganarte la vida C. graduarte del colegio D. All of the above A or D ?
1. 4 answers
2. asked by Ciaria
3. 618 views
Creo que después de terminar el programa de estudios en computación, yo _____ todo lo que necesito para seguir esa carrera.A.
1. 4 answers
2. asked by Ciaria
3. 957 views
A function f(x) is continuous for all x and has a local minimum at (1,8). Which must be true?A. f'(1)=0 B. f' exists at x=1 C.
1. 0 answers
2. asked by Anonymous
3. 662 views
How much should be deposited in an account paying 3.5% interest, compounded quarterly, in order to have a balance of $
1. 1 answer
2. asked by James
3. 520 views
Please Help Check My Answers.1. *****A. "The leaves," she explained, "can be anywhere from two to eight inches long." B. Nan
1. 1 answer
2. asked by Anonymous
3. 391 views
Hi, This is a question on my biology test review that I don't understand. I think the answer is pine trees, but I'm not really
1. 3 answers
2. asked by Kaden
3. 788 views
you research the cost of a gallon of gasoline over several years to look for trends the table shows the data you have collected
1. 1 answer
2. asked by matt
3. 777 views
if f'(x)=2(3x+5)^4 , then the fifth derivative of f(x) at x=-5/3 isA. 0 B. 144 C. 1,296 D. 3,888 E. 7,776 I got A
1. 1 answer
2. asked by Sarah
3. 594 views
1. Solve: log (y-1) = -log(y-9)2. Find the inverse of the logarithmic function f defined by f(y)= 2log5 (2y-8)+3.
1. 0 answers
2. asked by Lily
3. 412 views
For how many values of x will the tangent lines to y=4sinx and y=x^2/2 be parallel?A. 0 B. 1 C. 3 D. 4 E. Infinite
1. 0 answers
2. asked by Anonymous
3. 502 views
Given f(x)=4+3/x find all values of c in the interval (1,3) that satisfy the mean value theorem.A. 2 B. Sqrt(2) C. Sqrt(3) D.
1. 1 answer
2. asked by Sarah
3. 762 views
when 200 grams of aluminum at 100 degrees celsius is dropped into an aluminum calorimeter of mass 120 grams and containing 150
1. 1 answer
2. asked by john ralph
3. 1,506 views
If cos 3 theta=sin 30 find the value of theta without using a calculatorIs theta = sin 30/ cos 3 = 10
1. 1 answer
2. asked by Jenette
3. 346 views
You have a solution that contains Ca2+ ions and another that contains Na+ ions. How would adding a solution that contains CO2-3
1. 0 answers
2. asked by Channing
3. 583 views
A 55 grams copper calorimeter contains an unknown mass of water at 18 degrees celcius. When 755 grams of alloy at 100 degrees
1. 0 answers
2. asked by john ralph
3. 704 views
Solve for x: (x-a)/b +(x-b)/a = b/(x-a) +a/(x-b)
1. 0 answers
2. asked by Fred Rand
3. 279 views
A conical tank has a height that is always 3 times its radius. If water is leaving the tank at the rate of 50 cubic feet per
1. 0 answers
2. asked by Anonymous
3. 638 views
Ammonium nitrate (NH4NO3) is an important agricultural industrial chemical as it provides readily available nitrogen for plant
1. 1 answer
2. asked by Val22
3. 546 views
Hello,I am having trouble with a question on my homework. Even after reading through my notes and textbook I am still not sure
1. 1 answer
2. asked by Jordan
3. 518 views
You are traeling back and forth on a 10m straight lane. You go forth in 10 sec and back in 4 seconds,forwards again in 5 s and
1. 0 answers
2. asked by Yes
3. 454 views
A farmer has 100metres of fencing from which to build a rectangular chicken run. He intends to use two adjancent walls for two
1. 1 answer
2. asked by Anonymous
3. 605 views
Explain modelling molecules..please?
1. 0 answers
2. asked by shane
3. 298 views
What is the mass of air in a room meauring 30 cubic meters if the density of air is 1.3kg per cubic meter?
1. 1 answer
2. asked by shane
3. 521 views
Two circles with radii a and b touch each other externally . Let c be the radius of a circle which touches these two circles as
1. 1 answer
2. asked by PRANAV
3. 924 views
Please check my answer and let me know if it is right or not.25+.32m(800)=281 28+.30(400)=148 70+40+2(30+.29)=830 +.29m
1. 1 answer
2. asked by Jennifer
3. 346 views
The gravitational forces of the Earth and the Moon are attractive, so there must be a point on a line joining their centers
1. 1 answer
2. asked by Physics
3. 1,748 views
how can we find place on a map
1. 1 answer
2. asked by Noor
3. 370 views
CaSiO3(s) +6 HF (g)-> CaF2(aq) + SiF4 (g) + 3 H2O(l)If a 65.6 g sample of CaSiO3 is reacted in an inert 83 L container at
1. 1 answer
2. asked by Val22
3. 569 views
What is the difference between little p Progressivism and rogressivism?
1. 3 answers
2. asked by TayB
3. 430 views
1.) 100 kJ of heat is added to 600g of zinc at 20 C and 75g of it melts. If the specific heat of zinc is 0.385 kJ/kg-C and it
1. 1 answer
2. asked by ella
3. 769 views
In a class of 39 pupils, 1/4 of the girls wear spectacles and 2/3 of the boys wear spectacles. A total of 16 pupils in the class
1. 0 answers
2. asked by Vincent
3. 596 views
'to claim exemption' means?I think it means to ask for or to claim for privilege Am i right?
1. 1 answer
2. asked by zoha
3. 441 views
If the limit as x approaches infinity (6x^2/200-4x-kx^2)=1/2, then k=A. 3 B. -3 C. 12 D. -12 E. -3
1. 2 answers
2. asked by Anonymous
3. 2,181 views
If y=3x-7, x is greater than 0, what is the minimum product of x^2y?A. -5.646 B. 0 C. 1.556 D. 2.813 E. 4.841
1. 1 answer
2. asked by Anonymous
3. 1,328 views
In a class of 30 students,18 study Geography 3 take neithera) Display this information in a venn Diagram?
1. 1 answer
2. asked by Larivita John
3. 578 views
Howie Stars produces starts for elementary teachers to reward their students. Howie Stars' trial balance on June 1 follows"HOWIE
1. 2 answers
2. asked by Shraddhya Dubey
3. 882 views
There are 50 students in a class of which 40 are boys and the rest are girlsthe average weight of the class is 44kg and the
1. 4 answers
2. asked by priya
3. 2,766 views
A dicot seed is preferred over a monocot seed to observe seed structure because? a.Distinct embryonic axis or b.Proper sepration
1. 0 answers
2. asked by Mona
3. 546 views
If the point (a,0) and (0,b) and (1,1) lie on the same line, prove that 1/a + 1/b=1
1. 1 answer
2. asked by saurav
3. 417 views
The system is frictionless and the trolley accelerates to the left at 3m/s squared. (a) calculate the unknown mass M. (b)
1. 1 answer
2. asked by kulani
3. 412 views
Two horizontal forces Upper F1 Baseline and F2 act on a 3.6 kg disk that slides over frictionless ice, on which an xy coordinate
1. 0 answers
2. asked by patrick
3. 757 views
p and q are two points on the line x - y + 1 = 0 such that each of them is 5 units far from the origin. Find the co-ordinates of
1. 1 answer
2. asked by saurav
3. 530 views
Given the function f(x)= sqrtxa) Let M= f´´(50) and N=f''(49). Argue on that f´´(x) lies between M og N if x =]49,50[ (Tip:
1. 1 answer
2. asked by Calculus
3. 476 views
What is the difference between little p Progressivism and rogressivism?
1. 8 answers
2. asked by Tay B
3. 1,806 views
an equilateral triangle is inscribed in a circle of radius 40cm. what is the length of the sides of the triangle
1. 1 answer
2. asked by neevetha
3. 516 views
Just learned equations and want to know if i am doing write..4y= 2x-2 2y=2x6 ans (-7,-4) x+2y=7 3x-2y= -11
1. 0 answers
2. asked by Marie
3. 401 views
The integral of sqrt(x)(sqrt(x)+1) dxA. 2(x^3/2+x)+c B. x^2/2+x+c C. 1/2(sqrt(x)+1)^2+c D. x^2/2+2x^3/2/3+c E. x+2sqrt(x)+c
1. 3 answers
2. asked by Anonymous
3. 513 views
Just learned equations and want to know if i am doing right 4 problems.4y= 2x-2 2y=2x6 ans (-7,-4) x+2y=7 3x-2y= -11 ans (-1,4)
1. 1 answer
2. asked by Marie
3. 564 views
If f(x) is a continuous function with f"(x)=-5x^2(2x-1)^2(3x+1)^3 , find the set of values for x for which f(x) has an
1. 1 answer
2. asked by Anonymous
3. 785 views
Find the equation of the line tangent to y=tan2x at x=pi/8A. y-1=sqrt(2)(x-pi/8) B. y-1=1/2(x-pi/8) C. y-1=1/4(x-pi/8) D.
1. 1 answer
2. asked by Sarah
3. 2,394 views
Silver nitrate and aluminum chloride react with each other by exchanging anions as shown below.3 AgNO3 (aq)+ AlCl3 (aq) →
1. 1 answer
2. asked by Anonymous
3. 1,805 views
What career can I study if I am doing this subject: Mathamatical literacy ,Accounting , Economics And Business studies anyone
1. 3 answers
2. asked by matshidiso
3. 826 views
Describe what happens to the electricity produced at 25kV by a power station when its transmitted to a house at 230 V many miles
1. 1 answer
2. asked by sabrina
3. 508 views
"It was a town of red brick, or of brick that would have been red if the smoke and ashes had allowed it; but as matters stood,
1. 4 answers
2. asked by Anonymous
3. 1,846 views
A 450 kg car traveling north at 30 m/s collides with a 560 kg car traveling west at 35 m/s. If after the collision they become
1. 1 answer
2. asked by John
3. 555 views
In Star Wars: a new hope when did a father-son(uncle) experience separation?
1. 1 answer
2. asked by Anonymous
3. 437 views
The concentration (in milligrams per liter) of an antibiotic in the blood is given by the geometric seriesA + Aekt + Ae2kt + +
1. 1 answer
2. asked by Alexis
3. 580 views
2) According to psychoanalytic theory:A. behavior is the result of operant conditioning. B. crime is the result of positive
1. 1 answer
2. asked by breeamberr
3. 745 views
A projectile is launched at 15 degrees and it's landing height is the same as the launch position. If this is true, then at what
1. 0 answers
2. asked by Steffi
3. 485 views
CaSiO3(s) +6 HF (g)-> CaF2(aq) + SiF4 (g) + 3 H2O(l)If a 65.6 g sample of CaSiO3 is reacted in an inert 83 L container at
1. 2 answers
2. asked by joe
3. 831 views
from the top of a light house 40 m above the water the angle of depression of a small boat is 60 degree .find how far the boat
1. 3 answers
2. asked by shaikha
3. 1,042 views
area of a sector of a circle of radius 36 cm is 54 pie cm square . find the length of the corresponding arc of the sector
1. 3 answers
2. asked by shaikha
3. 1,296 views
f(x)=x^n , where n is a positive integer greater or equal to 2. The graph of f(x) will have an inflection point when n isA. Even
1. 2 answers
2. asked by Anonymous
3. 649 views
What will happen to the number of moles of SO3 in equilibrium with SO2 and O2 in the following reaction in each of the following
1. 1 answer
2. asked by Sally
3. 5,775 views
HelloI want to ask several questions about Lowry and Biuret method. 1. Lowry Reagent C are prepared freshly. Why? 2. Why Folin
1. 0 answers
2. asked by Angora
3. 651 views
if x =3x then evaluate 8x squared +4x
1. 1 answer
2. asked by tlhompo
3. 309 views
Two long parallel vertical wires 0.3m apart are. ' placed east-west of one another. The current in the westerly wire is 30A and
1. 0 answers
2. asked by pascal
3. 476 views
If f'(x)=sinx and f(pi)=3, then f(x)=A. Cosx+4 B. Cosx+3 C. -cosx+2 D. -cosx-2 E. -cosx+4
1. 3 answers
2. asked by Anonymous
3. 1,708 views
What is the limit, as x approaches 1, of (sqrt(x) - 1)/(x - 1)?I need to show work, but I know the answer is 3/2, because I
1. 1 answer
2. asked by John
3. 1,122 views
The limit as x approaches 1 (x^3-1)/(x^2-1) isI got 3/2
1. 1 answer
2. asked by Sarah
3. 431 views
Okay so I want to solve for refractive index. I'm given the dielectric constant and the permeability M. From what I understand
1. 0 answers
2. asked by Zed
3. 540 views
I read William G Mcloughlin's essay "Pietism and the American Character" and I didn t understand anythingI need a brief summary
1. 2 answers
2. asked by John
3. 402 views
Let f be a function such that the limit as h approaches 0 [(f(5+h)-f(5))/h]=4. Which of the following must be true?I. f(5)=4 II.
1. 1 answer
2. asked by Anonymous
3. 2,785 views
The smallest slope of f(x)=6x^2-x^3 for 0 is less than or equal to x is less than or equal to 6 occurs at x=A. 0 B. 2 C. 3 D. 4
1. 1 answer
2. asked by Sarah
3. 1,395 views
How would I calculate blood glucose levels if using standard curve ...and I have three samples and their absorbence at 420 nm.
1. 0 answers
2. asked by em
3. 354 views
What's third person point of view?
1. 2 answers
2. asked by My name :)
3. 631 views
An equation of the line tangent to y=sinx+2cosx at (pi/2, 1) isA. 2x-y=pi-1 B. 2x+y=pi+1 C. 2x-2y=2-pi D. 4x+2y=2-pi I got A
1. 1 answer
2. asked by Sarah
3. 2,279 views
air masses that form over land are moist true or false
1. 7 answers
2. asked by rezene
3. 1,166 views
For f(x)=x^2/3(x^2-4) on [-2,2] the "c" value that satisfies the Rolle's Theorem isA. 0 B. 2 C. +or-2 D. There is no value for c
1. 1 answer
2. asked by Anonymous
3. 411 views

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