
Trigonometry/ Please Help
Given sine of alpha=2/3 and cosine of alpha is less than zero, find the exact value of the other five trigonometric functions.
asked by CJ on January 13, 2011 
PreAlgebra
Directions: Find the missing measure of each angle How do I do this? It's a triangle, angle one 2x + 15 x 45degrees
asked by Dean on February 3, 2010 
math
Find x (the longer leg of the right triangle). the shorter leg is 18 m and the tip is at 34 degrees
asked by Katie on May 9, 2019 
math
find the area between the xaxis and the graph of the given function over the given interval: y = sqrt(9x2^2) over [3,3] actually, it's y = sqrt(9x^2) over [3,3]
asked by jamay on April 18, 2007 
math214
Please help me with this I do not understand this at all Find each of the following: 113°57 + 18°14, 84°139 27°45, 113°57 + 18.4°, 0.75° in degrees, minutes, and seconds
asked by alicia on February 17, 2010 
MATH
How do i solve the pair of simultaneous equations y=42x y=2x^23x+1 ?? how do i find minimum value of 2x^23x+1 and the value of x for which the minimum occurs???
asked by Aaliyah on June 17, 2009 
geology (science)
can you help me find pictures of igneous rocks and metamphoic rocks in wisconsin dells?
asked by scooby9132002 on April 26, 2009 
Math
Find the perimeter of the rectangle with length 9 inches and width 7 inches? 32 in. 16 in. 63 in. (MY ANSWER) 64 in.
asked by LOVE on March 18, 2016 
math
find the two ordered pairs from this equation. y+x=2 then give the ordered pair of the y intercept?
asked by KiKi on March 28, 2010 
math
Find a negative real number such that the square of the sum of the number and 3 is equal to 25
asked by diane on April 12, 2016 
trigonometry
In triangle ABC, a=8, b=15, and m
asked by jonathan on February 24, 2008 
maths
f(x)=ln(e^xe^x), x>0 By applying in turn the Composite and Quotient Rules, find derivative and second derivative. Thanks.
asked by albert on May 16, 2011 
geology (science)
can you help me find pictures of igneous rocks and metamphoic rocks in wisconsin dells?
asked by scooby9132002 on April 26, 2009 
math
x_1=3/2, x_(n+1)=3/(4x_n) prove that the series x_n converges and find its limit.
asked by moran on February 1, 2015 
Physics
find the magnitude of the sum of these two vectors 5.00m on A on the line. B 6.00m 30degrees.
asked by damien on June 14, 2019 
math
he area of a triangle with base b and height h is given by A=1/2 bh. find the area when b =15 (meter) and h= 40m
asked by Anonymous on July 29, 2010 
math
find the distance (0,0) and (5,8) round the answer to the nearest hundred how do you calculate distance
asked by val on May 5, 2016 
math
if I know the kinetic friction and the weight of the chair how do I find the force I need to push the chair ?
asked by nathan on December 27, 2012 
math
If three identical cubes have 3x^2+18x^2+36x+24 find a possible length of one side of one of the cubes
asked by Anonymous on April 19, 2012 
L.A or C.A
Hello everyone! I have a question about feature articles... How is it suppose to look like? Can you find me a feature article on anything so I can see the formate? well thank you! =)
asked by Nick on February 24, 2008 
Calculusderivatives
What is the slope of the tangent of each curve at given point y=√(16x^3), (4,32) If I find the derivative of y=√(16x^3) Will it be 16/x^3
asked by Jake on February 15, 2012 
math
find an equation of the line passing through the pair of points. write the equation in Ax+By=C (9,7), (10,4)
asked by ann on October 29, 2013 
Maths
Find the two digit number such that if you treble it and you take away four times the reverse of that number, the ansswer will be 8.
asked by Annabella Richards on June 20, 2011 
maths
f(x)=ln(e^xe^x), x>0 By applying in turn the Composite and Quotient Rules, find derivative and second derivative. Thanks.
asked by albert on May 17, 2011 
math
Suppose a vector v has initial point (4, 3) and terminal point (8, 1). Find the magnitude of v
asked by Anonymous on March 17, 2016 
calculus
Use the linearization approximation (1+x)^k=1+kx to find an approximation for the function f(x)=(1/square root of 4+x) for values of x near zero.
asked by Anonymous on March 4, 2008 
Calculus
I'm having a little trouble with this problem...it would be great if you could point out where I'm going wrong. Hours of Daylight as a Function of Latitude. Let S(x) be the number of sunlight hours on a cloudless June 21st, as a function of latitude, x,
asked by Sara on November 12, 2010 
Math
A grandfather is ten times older than his granddaughter.he is also 54 years older than her. Find their present ages.
asked by Anonymous on May 10, 2017 
Calc I
How do I find the derivative for the sqrt(sin(e^(x^3)*cos(x)))??? I know this is a combination of the chain rule and product rule. Please help!
asked by Coolio on June 30, 2013 
error bound
find the bound on the magnitude of the error if we approximate sqrt 2 using the taylor approximation of degree three for sqrt 1+x about x=0
asked by tony on May 8, 2011 
Math
Use the diagram below. Write an equation using the angle measures shown. Then, find the measures of LAVB and LBVC
asked by Ashley on October 5, 2016 
Ap calc
A particle moves along the X axis with the acceleration a(t)=12t6. If v(0)=3, find the total distance the particle traveled from t=0 to t=2. Please help
asked by Lynds on March 11, 2015 
beginnning algebra
the perimeter of a triangle is 136m. If the seond side is 8m. more than half the first and the third side is 12m. less than twice the first, find the three sides.
asked by Linda on June 20, 2012 
Stats.....plz help me.....
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Errors Frequency 5153 9 5456 19 5759 16 6062 24 6365 25
asked by Jennifer on October 14, 2011 
Calculus
Find the absolute maximum and absolute minimum values of f(x)=sinx + (ã3) cosx on the closed interval [0,ƒÎ/3]
asked by Anonymous on October 8, 2008 
geometry
If four angles of a convex pentagon measure 120°, 93°, 108°, and 101°.how would you find the measure of the fifth angle?
asked by daerius on October 4, 2010 
math
find its slant height for volume of a right circular cone is 100¦Ð cm3 and its height is 12cm.
asked by susovan on January 16, 2016 
Trigonometry
Find the maximum value of r and any zeros of r. (Assume 0 ≤ θ < 2π. Enter any zeros as a commaseparated list.) r = 19  19sinθ
asked by Thomas on April 27, 2019 
english
I have to find the correct article that goes in the sentence. 1.)Usually ___ strange bird is a timid animal. Article the.
asked by Martha on January 6, 2015 
calculus
Find the point(s) on the curve y=x^2 that is/are closest to the point (0,3). If you use your calculator to do this (instead of taking a derivative), Sketch the graph that you use.
asked by kelly on January 22, 2017 
Chem
Find pH. A) 0.10M Zn(OH)4^2 F) Zn(OH)2 in 0.010M ZnCl2 Q) 0.010 M Zn(NH3)4^+2 hint: fined [NH3] then kb for OH^ Im having trouble with these can someone help me.
asked by Alison on March 25, 2012 
Geometry
Point J is between H and K on line segment HK. use th given information to write an equation in terms of x. Solve the equation. Then find HJ and JK. HJ=(x/4) JK= 3x  4 KH = 22
asked by Aaron on September 1, 2014 
math12
What is the third number in the 156th row of Pascal's triangle? I know that it is 154 x ___ how do I find out the number? thanks in advance
asked by sh on April 14, 2009 
Physics
A proton is at the origin and an electron is at the point x = 0.37 nm, y = 0.39 nm Find the electric force on the proton? I don't even know where to start. Can someone help me?
asked by Adam on August 13, 2009 
Math
Sheena is now one third of her father's age.Twelve years hence she will be half as old as her father.Find their present ages??
asked by Anonymous on January 15, 2017 
trig
Two forces of 5 lb. and 14 lb. act on a body at right angles to each other. Find the angle their resultant force makes with the force of 14 lb
asked by Anonymous on June 20, 2012 
maths
a wheel revolves 360 degree revolution in one minute.Find how many radians will the wheel subtend in one second
asked by ayesha on June 28, 2013 
math
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
asked by shaikha on March 15, 2015 
math
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. y=5x^2,y=x^2+3
asked by Philip on April 27, 2019 
Physics
Find the de broglie wavelength of a 1500kg car when its speed is 80 km/h. How significant are the wave properties of this car likely to be?
asked by Noah on November 2, 2017 
Math
Find the volume of the largest right circular cylinder (in units^3) that fits in a sphere of radius 4 units.
asked by Meghan on April 7, 2018 
Maths
5% of items manufactured by a machine are known to be defective is 4 out of 100 items taken randomly, find the probability that they will be deffective.?
asked by Aliya on June 12, 2019 
algebra/trigonometry
find the smallest positive number that is the difference of two threedigit integers made up of the digits 1, 2, 3, 6, 7, 8 where each digit is used once.
asked by DJ on September 9, 2012 
math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.9 * 10^2 µm. Find this earthquake's magnitude.
asked by lisa on November 11, 2013 
math
if we have pentagonal numbers 1 5 12 22 35 fit a quadratic model to find a formula for p(n) the nth pentagonal number.
asked by mike on December 17, 2008 
Calculus
If g(X) = 2+ln(x5), find the inverse function, (g^(1))(x) Solution: y = 2+ ln(x5) e^y = 2 + x  5 x = e^y + 3 y = e^x + 3 g^(1) = y = e^x + 3 Is that right? I'm following an example  but don't really get it  how do I determine the domain and range 
asked by Linda on September 3, 2016 
math
tori gates are often found in japan where they originated. what kinds of solids can you find in a tori gate?
asked by tracy on January 4, 2011 
steve plz help me on my math
Find the perimeter of a rectangular area with a length of 13 inches and a width of 7 inches using distributive property and not using it.
asked by Lucy on December 1, 2016 
Math
Find the value of k such that the quadritic poly 3x square plus 2 kx plus x minus k minus 5 has the sum of zeroes as half of there product?
asked by Dwithun Basumatary on June 26, 2013 
geometry
In parallelogram ABCD, BC = 8, DC = 12, and measure of angle D is 50 degrees. Find the area of the parallelogram to the nearest tenth.
asked by josh on January 23, 2012 
Algebra
Factor the GCF out of 5x2  10x? I know I need to find the GCF of the coefficients but I need to write it using the distributive property. Help please?
asked by Bob on January 13, 2013 
geometry
find the surface area of the figure below. A cylinder which has a hemisphere on one side of cylinder and radius is 5 and the hight is 8.
asked by zivar on March 17, 2011 
math
Given p is true, q is false, and r is trus, find the truth value of the statement (~p^q)~r. Show step by step work.
asked by Melissa on July 17, 2011 
math
Find the perimeter of a rectangular area with a length of 13 inches and a width of 7 inches using distributive property and not using it.
asked by ginger on December 1, 2016 
math
A polynomial P(x) has remainder R x +S on division by (xa) (xb). If a is not equal to b, express the constants R and S in terms of a, b, P(a), P(b). Find the remainder when P(x) is divided by (xa)^2.
asked by youngguru on March 16, 2017 
Math
Find the area of a parallelogram with a base of 6.2 meters and a height of 9.3 meters. round the the nearest tenth
asked by Nathaniel on July 23, 2008 
geometry
Find the sine of ∠K. 36 77 85 K J I Simplify your answer and write it as a proper fraction, improper fraction, or whole number.
asked by Anonymous on June 6, 2016 
Stats
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Errors Frequency 5153 9 5456 19 5759 16 6062 24 6365 25
asked by Jennifer on October 13, 2011 
math
A cuboid has a square base of side 18cm.The height of the cuboid is 10.4cm.Find its volume
asked by kimi on September 5, 2011 
calculus
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=4 x^2, x = 1, y = 0, about the xaxis
asked by john on December 9, 2010 
math
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x=2y^2 , y=1 ,x=0 about the yaxis
asked by yoo on January 29, 2011 
Calculus
The region R is in the first quadrant and bounded by the xaxis, the y axis, and y= 3+2xx^2. Find the volume of the solid that results when R is revolving about y+1= 0
asked by Anonymous on December 2, 2016 
linear algebra
Let A be the matrix below and define a transformation T:ℝ3→ℝ3 by T(U) = AU. For the vector B below, find a vector U such that T maps U to B, if possible. Otherwise state that there is no such U. A = +3+3 −6 +1+3 −8 −3 0 −2 B = +6 0 −9 Not
asked by sal on November 4, 2018 
math
If the sides of a square are lenthened by 7 cm, the area becomes 121 cm^2. Find the length of a side of the original square
asked by marie on August 29, 2010 
PHYSICS
find the heat of fusion of ice M copper calorimeter= 50 g M h20 200 g at 30 C M ice=20.45 at 0 C t2= 20C
asked by lollipop225 on March 16, 2015 
calculus
f(x)=2x+8x^1.For this function there are four important intervals: (infinity,A],[A,B),(B,C), and [C,infinity) where A,B and C are either critical numbers or points at which f(x) is undefined.Find A,B and C.
asked by zama on November 8, 2009 
Math
Really Stumped on this one, any help would be great! Thanks! Find the exact value of cos 2x using the double angle formula. cosx=−2/13 cosx=2/13 where π2
asked by Daemon on February 7, 2018 
Alg 1
Completing the square: Find the value of c such that each expression is a perfectsquare trinomial. p^2  11p + c Is the answer 30.25? If not, please explain. Thanks
asked by Jane on April 13, 2013 
algebra 2
Find two negative numbers such that the sum of their squares is 170 and twice the square of the first minus 3 times the square of the second is 95
asked by aaron on April 15, 2013 
Algebra
the perimeter of a rectangle is 54 inches. two times the width of 3 centimeters more than the length. find the dimensions of the rectangle.
asked by Julianna on January 31, 2016 
social studies 8th grade
Can you please help me find an accurate map of The Treaty of Fontainebleau 1762? I am trying to complete a project and want to make sure it is accurate
asked by Reed on April 13, 2013 
precalc helpppp
Find sin x/2, cos x/2, and tan x/2 from the given information. (show work please) thank you!!! cos x = − 4/5, 180° < x < 270°
asked by John on April 21, 2012 
trig
Find the sign of the expression if the terminal point determined by t is in the given quadrant. cos t X sec t in any given quadrant
asked by Katie on December 1, 2010 
physics
A car accelerates uniformly from rest to a speed of 64.5 km/h (17.9 m/s) in 10 s. Find the distance the car travels during this time.
asked by lindsey on February 16, 2010 
math help!!!!
4. Ernesto loses 14.5 pounds in 7 months. Now he weighs 156.5 pounds. Which equation can be used to find how much he weighed before?
asked by Jman on November 20, 2012 
Mensuration
A saree is 5 m long and 1.3 m wide . A border of width25 cm is pritedalong its sides. Find the costofprinting the border at rs 1 per 10 cm sq.
asked by SakshÃ¯ on August 30, 2017 
Calculus
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=6x^2, x=1, y=0, about the xaxis
asked by Anonymous on December 2, 2016 
math
Given the coordinates of the vertices of a quadrilateral, determine whether it is a square, a rectangle or a parallelogram. Then find the area of the quadrilateral. E(–7, –1), F(2, –1), G(–4, –8), H(5, –8)
asked by Jonathan on April 4, 2018 
calculus
Find all values of x in the interval [0, 2π] that satisfy the inequality. (Enter your answer using interval notation.) 14 cos(x) + 7 > 0
asked by Anonymous on September 19, 2011 
Trigonometry
Find the maximum value of r and any zeros of r. (Assume 0 ≤ θ < 2π. Enter any zeros as a commaseparated list.) r = 3sin(2θ)
asked by Thomas on April 27, 2019 
MAth
Find the smaller angle given the following: The angles are adjacent and form 120° angle. One is 5 times as large as the other.
asked by Stefanie Thews on January 30, 2016 
Chemistry
I wanted to find out what the difference is between acetic acid and boric acid and how they relate to the LaChatelier's principle.
asked by Colleen on November 30, 2010 
math118
Numbers is a game where you bet $1.00 on any 2digit number from 00 to 99. If your number comes up, you get $80.00. Find the expected net winnings.
asked by lawerance on November 13, 2013 
Algebra 2
Find the equation for the parabola with the given vertex that passes through the given points. vertex (4,2) point (3,0) please show work!!!
asked by Alicia on January 11, 2015 
Physics
A 55 uC point charge is at the origin. Find the electric field at the point x1 = 60 cm,y1 = 0cm . I have no idea where to start can someone help me?
asked by Adam R on August 13, 2009 
STATISTICS
Find the sample standard deviation s for the following sample data. Round your answer to the nearest hundredth. x: 23 20 11 33 27
asked by Jake on June 3, 2010 
Math
Two round fountains are similar. One measures 7'6" across and the other measures 14'11" across. Find the scale factor from the small one to the large one.
asked by Nicole on January 10, 2011 
science
a solid weighs 100g in air 75 g in water and 70 g in oil.find relative density of oil
asked by mk on March 11, 2015 
PreCalculus
A hemispherical bowl with a 30centimeter radius contains some water, which is 12 centimeters deep. Find the volume of the water.
asked by Danny on October 10, 2016 
geometry
the diagonals of a rectangle are 8 units long and intersect at a 60 degree angle. Find the dimensions of the rectangle?
asked by eddie on January 27, 2011
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