
physics
help pls. i need to find the best animation of the movement of electrons and protons... the best one... pls send me the link. thanks so much.
asked by Lucy on April 24, 2015 
maths
If two matrices are known and are inverse of each other.How can we use these matrices to find the point of intersections for the given set of 3D planes? Kindly help
asked by Asfand on July 16, 2016 
Calculus
If f(2)=3 and f'(2)=5, find an equation of a. The tangent line b. The normal line to the graph of y=f(x) at the point where x=2 So I plotted (2,3) and (2,5)...but that's not getting anywhere... Thanks
asked by Anonymous on February 24, 2010 
Math
Find the sum of the absolute values of all integral values of X that make the following expression prime: (x^25x)^2  34
asked by Axel on January 30, 2012 
calculus 2
Find the area of the region bounded by the parabola y = 5x^2, the tangent line to this parabola at (3, 45), and the xaxis.
asked by TayB on January 25, 2016 
AP Calculus
Find the differential of: y = u*cos(u) I'm trying to submit my homework to webassign, and I got usin(u)+cos(u)du and it said i was wrong, please help me out, thank you.
asked by Sarah on March 7, 2010 
Physics
a crate slides down a frictionless ramp with an angle of 29.5 above the horizontal. find the acceleration of the crate.
asked by Stephanie on October 5, 2011 
math
Find the foci of the ellipse whose major axis has endpoints $(0,0)$ and $(13,0)$ and whose minor axis has length 12.
asked by rui rui on June 7, 2016 
Precalc
i need help with this equation anything help will be greatly appreciated find the standard equation of a parabola with a focus (2,0) directrix x=3
asked by Natali on November 13, 2009 
physics
2.5 kg rifle fires a 20 g bullet at 400 m/s. Find magnitude of the recoil velocity of the rifle.
asked by Anil on February 7, 2011 
Math
If a scale of 2cm represent 3/4km find the length on the scale drawing in 30km
asked by Lolade on May 11, 2017 
Math again ;;
I think this is the last question I need help on. . .I hope. 5x + 2(x + 6) How do I find the answer? Would I add the x to 5 making it 6x+2+6 and then adding them together to be 6x+8? But then again that is not an option so how would I get the answer?
asked by Confused Again on December 14, 2017 
chem
The voltage of the cell Pt (s) I H2 ( 1 bar)I RNH2(0.1 M), RNH3+ Cl(0.05 M)IIS.H.E. is 0.49 V. Find kb of the base, RNH2
asked by katya on November 16, 2008 
Algebra
I I have the hypotenuse of a right triangle that is 50 yds long and the other two sides are equal in length, how do I find one of the sides. Thank you
asked by JessieLynne on December 27, 2010 
geometry
the angles in a hexagon are 135, 62, 151, 140, x and x +6. find the measure of the missing angles.
asked by brittany on November 28, 2011 
Physics
How do you find the resultant in terms of components, the magnitude of the resultant, and the resulant's angle above the xaxis?
asked by Anonymous on December 4, 2010 
Math
The sum of three consecutive numbers is 66.Form an equation to represent this information and find these numbers
asked by Hazel on June 7, 2016 
world history
Can you help me with this question because I can't find it anywhere. I searched google but still nothing. Question: What jobs did the second estate have during the french revolution?
asked by skittles on October 12, 2009 
MATH
how would you solve this equation? the measurement of a triangle is 2m more than the base. The area is 17.5m^2. Find the length of the base.
asked by Hannie on July 13, 2008 
algebra
find n so that squares and triangle has the same perimeter square is 8n+6 triangle is 13n+2 on two sides and 30n28 on the other
asked by art on September 29, 2010 
math
The length of rectangle is 120% that of the breadth. The perimeter is 88m. Find the area of the rectangle?
asked by lisa on July 27, 2014 
calculus
Find the derivative of the function below in two ways. F(x) = (x  7 x sqrt(x)) / sqrt(x) (a) By using the Quotient Rule. (b) By simplifying first.
asked by jken on November 5, 2008 
trigonometry
Find the angle of elevation, depression and the height of a building from the tip of another building with a distance of 1.2 km.
asked by paul pogi on January 28, 2016 
math
Find the amount of sales tax for a television that costs $475.00 at a 7% tax rate?
asked by !!PLEASE ANSWER!!! on November 30, 2012 
Math
How do you find the component form AND the magnitude of the vector v with initial point (1, 11) and terminal point (9, 3)?
asked by Lily on February 18, 2015 
Energy&Society
How do i find the fuel cost per energy unit (different energy sources). I don't have to calculate it. I just want to know from where I can get it.
asked by Matt on March 5, 2015 
Calculus
Find the limit Limit as h approaches 0 of : SqRt(4+h)2 ____________ h by relating it to the derivative. (Indicate reasoning.)
asked by Kristyn on October 8, 2008 
Physics
2 charge of 10 microcoulomb and 40 microcoulomb respectively 12cm apart find the position of a point where electric field is zero
asked by Abc on April 19, 2017 
geography
could u give me some facts about london pls cause im doing a presentation on london and u have to find its location and things like that
asked by holly on October 11, 2009 
Math
Lenth of side of isosceles triangle is 10 cm and angle between them is 30 degree. Find the area of the triangle?
asked by Atreyee on July 16, 2016 
tv cable
Hi, Is it possible for me to buy a tv cable wire separately and use it for the tv I currently have? I just moved from a different house and i can't find where i put the wire.
asked by jen on June 22, 2008 
hialeah miami lakes
given triangle PQR with vertices P(0,8), Q(4,9) and R(2,3), find the length of the midsegment connecting the midpoint of PQ to the midpoint of PR.
asked by ivette hanon on May 3, 2011 
college algebra
Use a calculator to find y to four decimal places, if possible. (If an answer is undefined, enter UNDEFINED.) ln y = log 9
asked by Dee on November 4, 2013 
math cont'd
how would you solve this equation? the measurement of a triangle is 2m more than the base. The area is 17.5m^2. Find the length of the base.
asked by Hannie on July 13, 2008 
Math
A father is 5 times as old as his son.In 4 years the sum of their ages will be 56.Find their present ages.
asked by Fjona on March 6, 2016 
trigonometry
The wheels of a car have radius 11 in. and are rotating at 800 rpm. Find the speed of the car in mi/h. mi/h
asked by monic on November 26, 2012 
algebra (checking answer)
Checking to make sure I did it right.. Remainder theorem to find the remainder when f(x) is divided by the given xk f(x)=x^34x^2+2x+4; x+2 2 x 4 2 4 1 2 4 4 1 2 2 8 2)x^34x^2+2x+4. (X^32x^22x) is the answer x^3 2x^2+2x 2x^2+4x 6x+4 2x+4 8x+8
asked by Anonymous on March 20, 2013 
Math
Suppose that y varies inversely as t he cube of x. If y is 1/2 when x is 2 , find the constant of variation and variation equation
asked by Mary on August 28, 2014 
Math
the length of a rectangle is seven less than four times the width. Find the length if the area is 65 square units.
asked by Anna on January 11, 2014 
Physics
Given an acceleration of 0.6 m/s/s, on the surface of an asteroid with a radius of 1200 meters, find the mass of the asteroid.
asked by Jordyn on March 8, 2013 
Science
A 15.3 kg object is dropped from an initial height of 33.5m above the ground. Find the speed when it hits the ground.
asked by Lisa on January 28, 2014 
Calculus
Find the area bounded by y= 0.5x+6, y= !/4 x and the yaxis. Sketch a graph of the two functions and shade in the area.
asked by Fred on July 25, 2012 
Englilsh
Find the participle Several passengers injured in the wreck were brought to the local hospital. Would the participle be several?
asked by Anonymous on February 26, 2014 
english
Where can I find some negative benefits of Reproductive Cloning at? I found the positives for Reproductive and Therapeutic already.
asked by Michele on March 1, 2009 
Algebra
Find four consecutive odd numbers which add to 80. Give the numbers smallest to largest
asked by Seymour on January 27, 2016 
physics
Find the magnitude of the resultant of a 40 N force and a 70 N force acting concurrently when the angle between them is: a) 0.0 b) 30.0 c) 60.0 d) 90.0 e) 180.0
asked by sarah on November 11, 2009 
Algebra
Find four consecutive odd numbers which add to 80. Give the numbers smallest to largest
asked by Seymour on January 27, 2016 
Calculus ( finding limits)
Find the limit as x>inf (x+2)^(3/2)+1 I know that the answer is infinity but I don't know how to get this answer by hand. Could someone please help me? Thanks a lot!
asked by Jess on March 6, 2010 
Math
PQR is a right angled triangle with ^PQR=90° ^QPR=30° and PQ=50cm find to de nearest whole namba I.QR ii.PR
asked by Yoyoo on March 13, 2017 
english
Rhetoric and commonly confused words, prefixes and suffixes, misspelled words Can't find one??
asked by Carlota on July 22, 2012 
trig
In a right triangle the side opposite the 30 degree angle is 5 meters.Find the adjacent side.
asked by DIFFICULT on July 16, 2010 
Probability
A pair of fair dice is tossed 3 times. Find the probability a seven appears 3 times.
asked by Traci on February 20, 2011 
MATH PLZ HELP
I need all the answers please :( Find the like terms in the expression 1.) y + 1.2y + 1.2z 2.) simplify 2 + 17x  5x + 9 3.) simplify 3(5 = 6)  4 4.) Factor 81 – 27p
asked by Matthew Connexus MATH on November 6, 2017 
calculus
find the vertex,focus, direction of the parabola. use a graphing utility to graphthe parabola: 1) x^22x+8y+9=0 2) y^24y4y=0 3) x=1/4(y^2+2y+33) 4)(x+1/2)^2=4(y1) 5) y= 1/4(x^22x+5)
asked by reem on May 1, 2011 
physics
100 kg jeepney is at reast on a bridge 5m from the right end, neglecting the weight of the bridge. find f1 and f2
asked by awts on October 20, 2014 
Calculus (Solid of Revolution)
The region R is bounded by the xaxis, x = 1, x = 3, and y = 1/x^3. C. Find the volume of the solid generated when R is revolved about the xaxis.
asked by Casablanca on March 13, 2012 
Maths
IF length of rectangle is 20 & breadth 5cm, find the side of square which is equiangular with rectangle.
asked by Anushka on March 16, 2016 
math
in a rational number... nemerator is 3 less than the denominator. if 3 is added to the numerator.. fraction becomes 1. find the fraction??
asked by vaibhav sahu on November 3, 2017 
high school calculas
Find the (a) the local extrema, (b) the intervals on which the function is increasing, (c) the interval on which the function is decreasing h(x)=2/x
asked by pipi on November 6, 2008 
Math
cos^2(x^3) Find the derivative How is it 6x^2sin(x^3)cos(x^3) I know you use chain rule but Im confused what else to apply
asked by M on January 9, 2019 
algebra
Find 1.The first 4 terms of the binomial expansion in ascending powers of x of (1+x/4)^8. 2.Use your expansion to estimate (1.025)^8
asked by lindsay on July 22, 2014 
Science
How to find the amount of diploid cells, haploid number of chromosoems, and number of autosomes
asked by Anonymous on January 23, 2016 
science
you push yoursef on a skateboard with the force o 30n and the accelerate at 0,5m/s2 find the mass of you and the skateboard together
asked by joe on October 19, 2009 
Algebra 2
Jessica's bank contains 18 quarters and dimes, of which q are quarters. Find the total value of the coins in dollars.
asked by Nina on September 2, 2013 
math
Find an equation of the tangent line to the graph of y = g(x) at x = 2 if g(2) = −6 and g'(2) = 5. (Enter your answer as an equation in terms of y and x.)
asked by Yuxiang Nie on February 21, 2019 
math
Find two consecutive integers such that the sqaure of the bigger number in equal to the product of number
asked by Dhanu Bista on March 7, 2016 
MATH
for which value of X will the fraction 7/2x6 be undefined ? and check this IF three times a number decreased by 5, the result is 7. find the number. 3x5=7 and x=4 is this right?
asked by CHRIS on December 25, 2011 
Algebra 2
Jessica's bank contains 18 quarters and dimes, of which q are quarters. Find the total value of the coins in dollars.
asked by Nina on September 2, 2013 
geometry ratio
5. find the ratio between the area of a square inscribed in a circle and an equilateral circumscribed about the same circle.
asked by BARBIE LEE on November 7, 2013 
chemistry
find the molality of a saltwater solution containing 0.27 mol NaCl in 150 g water.
asked by Catherine on April 7, 2013 
maths
the displacement of a particle moving in straight line is given by x= 16t2t^2 find out displacement travelled after 2 and 6 second
asked by mahi on June 8, 2016 
Calculus
Find the point on the graph of y = x^2 + 1 that’s closest to the point 8, 1.5. Hint: Remember the distance formula.
asked by Mishaka on December 16, 2011 
math
A 10 kg quantity of a radioactive isotope decays to 3 kg after 17 years. Find the decay constant of the isotope.
asked by Eric on February 3, 2011 
Math
Find two numbers whose sum is 90 and onethird of the smaller number is equal to one seventh of the larger number
asked by Bob on March 7, 2011 
math
Find the range of possible measures if each set of expressions represents measures of the sides of a triangle:x 2x+10, x+8
asked by bob on December 16, 2010 
Math
A particle is traveling along a straight line. Its position at time t is given by s(t)=7t^(2)+7. Find the velocity at time t=7.
asked by John on January 28, 2016 
math
Find the standard form of the equation of the circle with the given characteristics. Center: (5, 2); point on circle: (3, 4)
asked by mary on May 26, 2018 
Calculus
Suppose that f(x)=ln(3+x^2). Use interval notation to state when f(x) is concave up and concave down. Then find all inflection points for f(x).
asked by Sckricks on November 6, 2013 
math
The area of a rhombus is 139.2cm.cm.and its altitude is 9.6cm.find the perimeter of the rhombus?
asked by subham on May 2, 2016 
geometry ratio
5. find the ratio between the area of a square inscribed in a circle and an equilateral circumscribed about the same circle.
asked by Barbie Lee on November 6, 2013 
Astronomy
Earth is spinning along at 1,674 km/h at the equator. Use this number to find Earth's equatorial diameter.
asked by vv on September 10, 2013 
math
A segment of a circle has a 120 arc and a chord of 8in. Find the area of the segment
asked by tony on October 20, 2010 
math
Suppose $ABCD$ and $EFGH$ are congruent parallelograms with $AD = 10$. If the area of $ABCD$ is $112$, find $EN$.
asked by geometry on February 8, 2019 
math
A Boy Is 6 years Younger Than His Sister.The Product Of Their Ages Is 135.Find The Ages
asked by elvis on September 25, 2016 
math
after twelve monthly deposits of $400 at 12% compounded monthly, find the amount of an annuity. please help me:(
asked by sha on July 13, 2010 
Math
A walks 2Km south to B, she the walks 3km west to C. Find the distance and bearing from C and A
asked by Ana on January 25, 2011 
MATHS
A committee of two persons is selected from two men and two women. Find the probability that the committee will have at least one man.
asked by CASEY on November 27, 2012 
Calculas
The slope of the tangent line to the graph of a function, h(t) is 7/2t The function passes through the point (5,3) Find h(4)
asked by ryan on March 2, 2014 
Life
I hate my life right now, I don't want to finish college, I want to drop out now and find something (I don't know what), what should I do? ARGH!
asked by Anonymous on March 20, 2008 
physics
A hammer falls from a scaffold on a building 50.0 m above the ground. Find its speed as it hits the ground.
asked by Anonymous on February 1, 2015 
Physics
A hemisphere of radius r is placed on a horizontal plane and a small mass of "m" is placed on the top of the hemisphere. Find the height from the ground to the mass m,at the moment it loses it's contact with the hemisphere.And the contact is frictionless.
asked by Shenaya on July 11, 2017 
Statistics
1. For the following exercise, complete the following by using the data sets below that provides the ages of the first seven presidents: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of
asked by Mercede on April 26, 2010 
Algebra
How would I complete this problem? Geometry. The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle. I think the width is 3x+5 but not sure. Subjects Art Business Computers English Foreign Languages Health Home Economics
asked by Loreal on June 5, 2007 
Chemistry(Please help)
What is the pH of a 5.06E2 M aqueous solution of sodium acetate? I know that I would set this up the same way I did for the previous question that I posted. I am just confused on how to find the Ka. I know it is kw/kb but for what compound is what I do
asked by Hannah on April 8, 2012 
Math
#1.) The first row of an amphitheater contains 50 seats, and each row there after contains an additional 8 seats. If the theater seats 938 people, find the number of rows in the amphitheater. #2.) At oceanside deck the first high tide today occurs at 2:00
asked by Wavikz on June 12, 2007 
math statistic
One of your friends knows that you are taking Advanced Placement Statistics and asks for your help wither Chemistry lab report. She has come up with five measurements of the melting point of a compound: 122.4, 121.8, 122.0, 123.0, and 122.3 degrees
asked by rhinechilde on February 16, 2017 
Math
Sandy can jog 3 2/5 in 5/6 hour. Find her average speed in miles per hour.
asked by Deja on October 20, 2015 
Maths
a) P is the point on the curve y= 2x^3 +kx 5 where x= 1 and gradient is 2. Find (i) The value of the constant k (ii) The equation of the normal to the curve at P
asked by Kelly on May 2, 2019 
on areas
the surface area of the three faces having the same border of a cuboid are 4,10,40 sq.cm respectively. find the volume of the cuboid?
asked by sree on January 4, 2012 
Linear Algebra
Find an example of 2 by2 matrices with a12 = .5 for which: a. A^2 = I b. A^1 = A^T c. A^2 = A By the way, a12 means the first row and second column.
asked by fatih on February 18, 2012
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