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May 3, 2016

Search: pre-calculas

Number of results: 5,143

pre -calculas
No answer.
April 25, 2012 by Anonymous

pre-calculas
Can someone please help me?
September 18, 2012 by ladybug

pre-calculas
rationalize the denominator: 5 + the sq. rt. of 3 ________________________ 4 + the sq. rt. of 3
February 16, 2014 by Marina

Pre Calculas
verify the following 1+1/csc^2x-1=sec^2x
November 2, 2011 by Raven

pre-calculas
Use "completing the square" to find the zeros of the polynomial. =2x squared + 6x + 5 = 0
February 16, 2014 by Marina

pre-calculas
find the LCD and solve: x+3 12x + 4 1 - 2x ____ + _________ = _______ 3-x x squared - 9 x + 3
February 16, 2014 by Marina

Pre Calculas
Need help Give an example of an exponential function that goes through the point (0,4) .
November 25, 2015 by Reese

Pre Calculas
how would you varify the following sinx+sinx cot^2x=cscx
November 2, 2011 by Raven

pre-calculas
what is the function whose graph is the graph of y=+4, but is reflected about the the x-axis. y=
September 19, 2012 by ladybug

pre-calculas
write a function whose graph is the graph of y=x^2, but is shifted to the left 6 units.
September 18, 2012 by ladybug

pre-calculas
simplify the following complex fraction: x ____ -2 x-5 _____________________________________ x squared - 9x - 10 ____________________ x squared - 25
February 16, 2014 by Marina

Pre-Calculas
I a lighthouse is 75 feet tall and boat is out at sea 40 min away, how far is the boaat from the lighthouse. I'm stump on this problem..Help!
September 1, 2011 by Carlos

Pre Calculas
A man who can row in still water at 3 mph heads directly across a river flowing at 7 mph. At what speed does he drift downstream?
May 12, 2015 by Jared

Pre Calculas
Im having a little trouble help please? 1.Given the table below, evaluate the following: x -3 -2 -1 0 1 2 3 4 5 f(x) 10 20 30 40 50 60 70 80 90 g(x) -1 -2 -3 -4 -5 -6 -7 -8 -9 a. (3f+2g(1) b. (fog)(-1) 2. Express the following function, H(x) as a composition of two functions f...
October 8, 2015 by ryan

Pre-calculas Math
how to find the exact value of: cos(9*pi/12)*cos(5*pi/12)+sin(9*pi/12)*sin(5*pi/12)
November 4, 2012 by Jon

pre-calculas
Find the function that is finally graphed after following transformations are applied to the graph of y=x in the order list 1. shift down 8 units 2. reflect the x-axis 3. reflect the y-axis
September 18, 2012 by ladybug

pre-calculas
Find the slant asymptote, if any, of the rational function. Do not graph the function. (Enter your answers as a comma-separated list of equations. If an answer does not exist, enter DNE.) f(x) = x2 − 2x + 15 _____________ x + 7
March 10, 2013 by melanie

Pre Calculas
If you deposit $5,000 in an account that pays 5% interest compounded annually, how much money will you have in your account at the end of 15 years? Write an exponential function that represents this situation. I got 1,500,000 but im not sure if i did it right and im stuck
November 25, 2015 by Ryan

Pre-Calculas
The voltage E of an alternating current electrical circuit can be represented by the sinusoidal function E = 220 cos( t), where E is the measured in volts and t is measured in seconds. How long does it take the alternating current to complete one full cycle?
September 10, 2011 by Anonymous

Pre Calculas
True or false (logx)^2=2logx True or false in56/in7=in8 i got true for the first one and false on the second im sorry for posting today but i just need someone to check
November 26, 2015 by Ryan

Pre-calculas
A conical tank of radius R=19 feet and height of H=16 feet is being filled with water at a rate of 9ft 3 /min . (a) Express the height h of the water in the tank, in feet, as a function of time t in minutes
January 27, 2016 by Help Please

Pre-Calculas 11
a farmer wants to build two pens (one for cows, the other for horses) on land by a straight road. There is already a fence along the road and the farmer has 800m of fencing to build his fence to enclose the pens and seperate them as shown in the diagram below. what is the ...
October 1, 2013 by Ravneet Gill

Pre Calculas
A GARDENER HAS 60' of edging. She wants to use it to enclose a 120 square foot rectangular area. She does not have to use up all of the edging. what are the possible lengths that a side of the rectangle can have? Answer using interval notation. Hint: if the length of the ...
May 23, 2013 by Laura

Pre-calculas
The function C(x)=x2−4x+28 models the cost, in hundreds of dollars, to produce x thousand pens. Find the total cost to produce 36,000, 139,000, and 222,000 pens. (a) Cost to produce 36,000 pens is?
January 19, 2016 by Answer please!

pre-calculas
can someone please help me with this question? Given the function f(x)=3x-9 Find the rate of the change between the stated values for x: 7 to 8 A. Find the equation of a secant line containg the given point (7,f,(7)) and (8,f,8)) B. Find the rate of change between the stated ...
September 18, 2012 by ladybug

Pre-calculas
Boat A leaves a dock headed due east at 1:00 PM traveling at a speed of 16 mi/hr. At 2:00 PM, Boat B leaves the same dock traveling due north at a speed of 18 mi/hr. Find an equation that represents the distance d in miles between the boats and any time t in hours for t≥...
January 27, 2016 by Help Please

calculas
If f(x)=3x-1 and g(x)=2/3x+2 find: a) f(-3)+g(6) b)f(3)-g(2)
June 5, 2011 by Genevieve

ap calculas
derivative of (-x^3+3)(3x+2)^3
March 25, 2013 by Rebecca

pre-calculas
An object is situated so that its center of mass is located at the origin.Three forces X,Y, and Z act on the object at the same time. Force X passes through the point (-3, -4), forve Y passes through the point (5,-12), and force Z passes throught the point (15,8). Forces X,Y, ...
May 10, 2012 by R

calculas
how to find the x intercepts for f(x) = 3x^3+7x^2+3x+1
March 23, 2009 by Sandra

calculas
f(x)=ln[(1+e^2x)/(e^2x-4) find the derivative
March 29, 2010 by Lori

ap calculas
derivative of (2x^3+5)cos2x^5
March 25, 2013 by Rebecca

calculas
If f(t) = square root of 7/t^5. Find f'(x) and f'(2)
October 21, 2010 by sandy

Calculas
Find the length of the curve y=(2x), from x=1 to x=4.
July 24, 2012 by Drew

Calculas
area between the curves y=4-x^2 and y=x-8
December 21, 2014 by jessica

Calculas
Evaluate the definite integral. S4 (-3x+4) dx 1
November 10, 2015 by Please Help !!!

AP Calculas
Does f(x)=(2x^3-2x)/x^3+x^2-4x-4 have any horizontal asymptotes? How can you tell?
October 7, 2010 by Yishan shan

Calculas
find the compute derivative of f(x)=sinh^2(5x)
April 12, 2012 by ASB

Calculas
how to find the x intercepts for f(x) = 3x^3+7x^2+3x+1 please show your steps
March 23, 2009 by Sandra

calculas
The function f(x)= (8x-7)e^2x has one critical number. Find it
November 5, 2009 by jenny

CALCULAS
POLAR EQUATION OF INWARDLY SPIRALING SPIRAL
February 13, 2010 by YAMNA

calculas
let p=(1,1,1), Q=(2,3 5), and R=(-1,3,1). find the area A of thr triangle with vertices P,Q, and R
December 11, 2012 by Anonymous

calculas
Solve following equations tan^(2 ) x-5tanx=-6
March 5, 2013 by preet

Calculas
Integrate: Cos^7(2x) Explanation would be helpful
February 16, 2015 by Pen

calculas
Differentiate the explict funtion of 9x^2 + 64y^2 = 576
March 27, 2016 by Sagar

Calculas
F(X)=9 csc6(X) it is continous from -infity to infinity except what value?
October 24, 2012 by Mohammad Al-Abdullah

calculas
Write following equations in polar coordinate then graph them Y=4X
March 5, 2013 by preet

Calculas
Find the area of the region under the curve y = 12 e ^{3 x} between x = -2.6 to x =2.6
March 8, 2014 by ryan

Calculas
W= [ a , a+b ] (2x2 matrix) a-b , b a, b are element of R Show that W is a Subspace of M22?
April 10, 2016 by Wong

calculas
Question # 01 Solve the inequality and sketch the solution on a coordinate line.
March 20, 2007 by khan

Calculas
I stumble a question I cannot answer please help up. Find value of limit k for equation:
May 9, 2010 by Mike

Calculas
find the tangent line of the following function Y=2sinx + sinx^2 at the points Pi/6,5/4
October 26, 2014 by Bashar

Pre Calculas
7. For the function defined by: f(x)= {x^2, x<=1} {2x+1, x>1} a. evaluate f(0) 8. Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices. 3x-y=0 5x+2y=22 9. Solve the following system of equations algebraically...
October 6, 2015 by Bob

Pre Calculas
Complete the identity sin theta / cos theta + cos theta / sin theta = ? Do you mean (sin theta/cos theta) + (cos theta/sin theta) ? That would equal tan x + cot x = tan x + (1/tan x) = (tan^2 x + 1)/ tan x I don't see any way to further simplify it. 1/(cosx)(sinx) or sin^2x+...
June 10, 2006 by Robert

Calculas
Use the derivative of sinx and cosx to develop the derivatives of y=secx and y=tanx? Help would be much appreciated
October 26, 2014 by Bashar

calculas
Find the volume of the solid that is obtained when the region under the curve y=x+3 over the interval [5, 24] is revolved about x-axis.
June 28, 2012 by raza

math- 165 calculas
Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = 5x^2 + 1/ 7x^3 − 2x^2 + 5
October 6, 2015 by akash

Calculas
Find any critical numbers of the function. (Enter your answers as a comma-separated list.) g(t) = t sqrt6 − t , t < 13/3 I don't even know how to start out!
February 19, 2012 by Mary

Applied calculas
Let y=〖tan〗^(-1) x Rewrite it as an equation involving a trig function. Use implicit differentiation to determine an expression for y.
April 8, 2013 by jack

calculas
Find the equations for the tangent line and normal line to the curve for f(x)=(x^4)+(2e^x) at the point (0,2)?
September 28, 2010 by john

Math ( calculas)
find the intervals on which the curve y=x/(x+1)^2 is concave upward or concave downward.
March 27, 2011 by Tina

calculas
Consider the function f(x) = 7 xe^{-7.5 x}, 0<_x<_2. This function has an absolute minimum value equal to: which is attained at x=
February 19, 2014 by ryan

Calculas
Can someone walk me through the following questions: Partial Derivatives f(x,y) = x^7 -8y -3 find x and y f(x,y) = 7 / 5x + 4y, find x and y
June 11, 2008 by Annette

Calculas
what is the velocity (in ft/s) of a sandbag 2.75 s after it is released from a hot-air balloon that is stationary in the air?
December 21, 2014 by jessica

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)
March 2, 2014 by ryan

Calculas
Evaluate lim x→0 10x/√(9+x)-√(9-x)
March 16, 2013 by Radical Limits!

calculas
Let f(x) = 1+3sin2x be a function, determin the amplitude and the period of the function,
April 3, 2013 by mathews

calculas
Let f(x) = 1+3sin2x be a function, determin the amplitude and the period of the function,
April 3, 2013 by mathews

calculas
Let f(x) = 1+3sin2x be a function, determin the amplitude and the period of the function,
April 3, 2013 by mathews

differential calculas
Find the instantaneous velocity and acceleration at the given time for the straight-line motion described by the equation: s= (t+2)^4- (t+2)^(-2) at t=1 Round to one decimal place.
November 26, 2012 by Preet

Calculas
Can someone please walk me through the steps for the following Partial derivatives problems: f(x,y) = x^7 - 8y - 3, find x and y f(x,y) = 7 / 5x+4y, find x and y
June 11, 2008 by Annette

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
November 6, 2008 by pipi

Calculas
I stumble a question I cannot answer please help up. Find value of lower and upper limit of k for equation: (3x^3-5)/x^2 dx = 10 limit: -k , k
May 9, 2010 by Mike

Calculas
Given f(x)=x^3−2x+5/x+4 and f′(3)=a/b, where a and b are coprime positive integers, what is the value of a+b? Details and assumptions f′(x) denotes the derivative of f(x).
March 16, 2013 by Derivative of f(x)

calculas
Suppose that the box height is h = 2 in. and that it is constructed using 193 \text{in.}^2 of cardboard (i.e., AB = 193). Which values A and B maximize the volume?
April 7, 2014 by MEMO

math- 165 calculas
Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = x^3 − 3x^2 + 5x + 1/ x^2 − 5x + 3
October 6, 2015 by akash

calculas,math
A cylindrical can is made from tin.If it can be contain liquid inside it then what is the parameter of design if we are oblige use the minimum amount of tin.
December 2, 2013 by mash

pre-algebra
kk my teach told me to describe and draw things that are about pre-algebra and she told me to write what pre-algebra is... so can anyone help me??
August 25, 2008 by damainmind

differential calculas
The angular displacement in radians is given by: θ=8√(t^2+2) Find the angular velocity and angular acceleration at t = 0.25 s
November 26, 2012 by Preet

Calculas
Johnny is designing a rectangular poster to contain 15 in^2 of printing with a 5-in margin at the top and bottom and a 3-in margin at each side. What overall dimensions will minimize the amount of paper used?
December 7, 2014 by jessica

Calculas
Suppose that the radius r of a right circular cone of fixed height h = 30 cm is increasing at a rate 10 cm/s. How fast is the volume increasing when r = 15? Give your answer correct to two decimal places.
October 12, 2010 by Jp

calculas
A car braked at a constant deceleration of 45 ft / s2, producing a skid mark measuring 105 feet before coming to a stop. How fast was the car travelling when the brakes were first applied?
December 4, 2011 by jordan

Calculas
The profit obtained when x barbecues are sold is P(x) = 100 x − 3x^2 (lnx) dollars . Find the marginal profit when 4 are sold.
April 4, 2014 by jake

calculas
if the length is decreasing at a rate of 2 in./min. while width is increasing at a rate of 2 in./min., what must be true about area of the rectangle
December 7, 2010 by Anonymous

Calculas
Do I just put in 3 for t? A ball is dropped from a tower 550 meters above the ground with position function s(t) = 4.9t^2 + 550. What is the velocity of the ball after 3 seconds?
December 16, 2014 by John

calculas
airplanes fly from left to right along the path y=1+(1/x)and can shoot their bullets in the tangent direction at creatures placed along the x-axis at x=1,2,3,4 and 5.determine whether a creature will be hit if the player shoots when the plane is at p(1,2)
November 25, 2015 by khalid

Calculas HS
a trucker handed in a ticket at the toll booth showing that in 2hours she had covered 159 mi on a toll road with speed limit 65mph. the trucker was cited for speeding. why?
November 6, 2008 by dt

calculas
consider the following. Function y = cos 3x point (pi/4, -square root of 2/2) (a) Find an equation of the tangent line to the graph of f at the given point. (Let x be the independent variable and y be the dependent variable.)
March 26, 2016 by Sagar

Calculas HS
show that the solution has exactly one solution in the interval x+ln(x+1)=0, 0<and equal to x <and equal to 3
November 6, 2008 by elley

Need some ideas.... for a Pre-K class
I am teaching a Pre-K class this summer and the theme for the next two weeks is Community History. What could I all my pre-k class to do that connects to this theme? I thought of helping them to construct houses or certain buildings using boxes and also make a large copy of a ...
July 5, 2008 by MARY

calculas
find the perimeter of the rectangle with maximum area that can be inscribed in a semicircle of radius 2 ft. if two of its vertices are on the diameter of the semicircle and the other two are on the semicircle.
December 7, 2010 by Anonymous

Pre-Calculus
I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for the help =)
September 17, 2011 by Cristina

Pre-Calculus
I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for the help =)
September 17, 2011 by Cristina

differential calculas
A rocket fired at 275 m/s at 36o angle of elevation is described by: x= (275cos〖36〗^0 )t and y= (275sin〖36〗^o )t-4.9t^2 Find the velocity (magnitude and direction) at t = 8 s. Round to 1 decimal place.
November 26, 2012 by Preet

english
is pre-analyzed a word? We have pre-analyzed how they would end up if they think they are in love from comparing to Tom and Daisy.
August 23, 2011 by sam

pre- algebra(MATH)
I need help with pre-algebra solving equations by multiplying or dividing. Can you help me with this homework for free?
November 5, 2009 by Ketrice

Chemisrt
What is pre-exponential factor for diffusion, because i have a problem with this equation. D=D0*exp[-Ea/R*T] where D=2*10^-13 Ea=2.9*10^-19 joules/atom T=1009 K How to find the pre-exponential ?
July 27, 2014 by Musaka

pre-ap pre calculus
To solve an equation by finding x-intercepts, Cynthia graphed the function y=x^3-5x+|2x-3| Give several possibilities for the original equation. How do I do it and what's the answer? Thanks
September 8, 2009 by Anonymous

Pre Calculus
Pre Calculus why is sin(-20)/cos 380 equal to tan (-200)
November 15, 2009 by Pre Calculus

Pre-Algebra
How do you solve this Pre-Algebra problem: $1.25x + $2.25y = $916 x + y = 560
February 1, 2014 by 8th Grade

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