Wednesday
April 16, 2014

# Search: Estimate the area under the graph of f(x) = 10 cos(x) from x = 0 to x =

Number of results: 115,704

Calculus
Estimate the area under the graph of 25−x 2 from x = 0 to x = 5 using 5 left rectangles. b. Sketch for yourself the graph of f and the rectangles. Is this left sum an overestimate or underestimate? Enter OVER or UNDER. c. Now use 5 right rectangles to estimate the area. ...
Friday, April 12, 2013 at 1:46pm by Daniel

Calc
Estimate the area under the graph of f(x)= x^2 + 2 x from x=4 to x=10 using 3 approximating rectangles and left endpoints.
Wednesday, April 22, 2009 at 9:53pm by Perry

Math: Calculus
Estimate the area under the graph of f(x)=3x^3+5 from x=-1 to x=4, first using 5 approximating rectangles and right endpoints, and then improving your estimate using 10 approximating rectangles and right endpoints. I'm having problem with using the midpoint to find the area. ...
Friday, November 12, 2010 at 6:59pm by REALLY NEED HELP!!!!

calculus
given the graph of f(x) = x sinx, 0<=x<=2pi assuming that a quantity y changes at a rate of y' = xsinx, find by how much it will increase or decrease over 3pi/2 <= x <= 2pi the area under the graph from 0 to pi/2 is 1 the area under the graph from pi/2 to pi is pi-...
Tuesday, September 27, 2011 at 11:55pm by Ethan

Calculus
Set up a Riemann sum to estimate the area under the graph of f(x) = 5x 2 + 2 between x = 0 and x = 1 using 3 subdivisions and left endpoints. Draw the graph and the 3 rectangles
Wednesday, December 5, 2012 at 12:41am by Rudy

Math: Need Answer to study for a quizz. Help ASAP
Estimate the area under the curve f(x)=x^2-4x+5 on [1,3]. Darw the graph and the midpoint rectangles using 8 partitions. Show how to calculate the estimated area by finding the sum of areas of the rectangles. Find the actual area under the curve on [1,3] using a definite ...
Thursday, November 18, 2010 at 7:35pm by Jesse

Math
Estimate the are under the curve f(x)=x^2-4x+5 on [1,3]. Darw the graph and the midpoint rectangles using 8 partitions. Show how to calculate the estimated area by finding the sum of areas of the rectangles. Find the actual area under the curve on [1,3] using a definite integral.
Thursday, November 18, 2010 at 7:17pm by Jesse

Calculus
The area A of the region S that lies under the graph of the continuous function is the limit of the sum of the areas of approximating rectangles. A = lim n → ∞ [f(x1)Δx + f(x2)Δx + . . . + f(xn)Δx] Use this definition to find an expression for the ...
Sunday, November 24, 2013 at 11:10pm by christina

Calculus
Use 5 right rectangles to estimate the area of the area under the graph of 25−x 2 from x = 0 to x = 5 using 5 left rectangles?
Friday, April 12, 2013 at 4:21pm by Molly

Calculus
Estimate the area under the graph of 25−x 2 from x = 0 to x = 5 using 5 left rectangles?
Friday, April 12, 2013 at 4:20pm by Molly

calculus
4. a. Estimate the area under the graph of f(x)=sqrt(x^2+4) from x=0 to x=2 using four rectangles and right endpoints.
Thursday, July 21, 2011 at 1:02pm by Rick

Calculus
Use n = 3 subdivisions and left endpoints to estimate the area under the graph of f(x) = 3x 2 + 1 between x = 0 and x = 1.
Wednesday, December 5, 2012 at 12:42am by Rudy

Calculus
Use n = 6 subdivisions and left endpoints to estimate the area under the graph of f(x) = 2x + 1 between x = 0 and x = 3.
Wednesday, December 5, 2012 at 12:42am by Rudy

Math: Calculus
Estimate the area under the graph of f(x)=x^2+2x from x = 4 to x = 10 using 3 approximating rectangles and left endpoints. I got 290.25 as my answer but it's wrong. Would someone explain to me how to answer this question.
Friday, November 12, 2010 at 7:02pm by REALLY NEED HELP!!!!

Calculus-Approximate areas
Estimate the area under the graph of f(x)= x^2 + 3 x from x=1 to x=10 using the areas of 3 rectangles of equal width, with heights of the rectangles determined by the height of the curve at a) left endpoints: b) right endpoints:
Monday, November 4, 2013 at 12:59pm by Liz

Calculus
Estimate the area under the graph of f(x) = 2x^3 + 3 from x= -1 to x=5, first using 6 approximating rectangle and right endpoints, and then improving your estimate using 12 approximating rectangles and right endpoints. When using the left and right endpoints, is there a ...
Tuesday, November 10, 2009 at 7:29pm by Z32

Calculus
I don't understand what the graph is suppose to show and what the integral equation is suppose to mean. How would I use the graph to answer the questions? f is the differentiable function whose graph is shown in the figure. The position at time t (sec) of a particle moving ...
Sunday, May 20, 2007 at 11:02pm by Anonymous

Calculus - maximum problem
An isosceles trapezoid is inscribed under the graph oof y =cos x. what are the dimensions which will give the greatest area?
Monday, October 26, 2009 at 6:27pm by calculus

physics
The first graph you plotted is called a speed-time graph. However, information other than speed or time can be obtained from such graphs. (a) What does the area under the line of the graph represent? the distance traveled? (b) Write an equation to represent the area under the ...
Sunday, October 21, 2007 at 11:21am by Anonymous

trig
By what fraction of the period of f(x)=10 cos(7 x) has the graph of f(x) been shifted to obtain the graph of g(x)=10 cos(7x- pi/2). how do I approach this and solve for the fraction shift and the domain and range?
Friday, July 2, 2010 at 4:12pm by tamara

physics
You provided no speed-time graph "below". Integrate the area under the speed-time graph between t = 0 and 10. That will be the distance travelled. Divide that by 10 seconds for tha average speed.
Saturday, October 23, 2010 at 6:15am by drwls

Algebra 1B
A painter can use the formula A=2/3bh to estimate the Area of space under the parabola, where b is the length of the base and h is the height from the base to the vertex. Calculate the area, in square feet under each arch.
Tuesday, April 2, 2013 at 6:32pm by Frank J

Python programming
A standard problem in mathematics is to measure the area under a curve (or to integrate the function defining the curve). A simple way to do this is to approximate the area with a series of rectangles (whose areas are easy to compute). For example, we could split the range ...
Sunday, January 13, 2013 at 2:31am by Anonymous

Calculus
Question Details: Do the following. (Round your answers to four decimal places.) (a) Estimate the area under the graph of f(x) = 8 + 2x2 from x = -1 to x = 2 using three rectangles and right end-points. R3 = 1 Improve your estimate by using six rectangles. R6 = 2 (b) Repeat ...
Monday, April 26, 2010 at 5:52pm by Cindy

Math
Use the following table of values to estimate the area under the graph of f(x) over [0, 1] by computing the average of R5 and L5. Table: x: 0 0.2 0.4 0.6 0.8 1 f(x): 51 48 46 43 41 38 I need help with this problem.
Thursday, July 1, 2010 at 10:27am by Jason

Math
Jenna lives 4 3/10 miles from school, she estimates that she travels 4 x2x5 or 40 miles each week. Is her estimate an over estimate or underestimate? I think it is under estimate but not sure?
Tuesday, February 12, 2013 at 5:23pm by Jared

calculus
Let A be the area if the region in the first quadrant under the graph of y = cos(x) and above the line y = k for 0 < k < 1. a. Determine A in terms of k. b. Determine the value of A when k = 1/2 c. If the line y = k is moving upward at a rate of 1/pi units per minute, at...
Tuesday, March 23, 2010 at 11:43pm by mary

calculus
The graph of f'(x) is shown for 0=< x =<10. The areas of the regions between the graph of f' and the x-axis are 20, 6, and 4, respectively. I'm going to describe the graph of f' since I can't post pictures. The first section of the graph goes up (like the sin function) ...
Monday, May 2, 2011 at 11:34pm by Mike

trig
I dont understand this. can you please tell how you got each answer? describe how the graph of each function is related to a basic trigonometric graph. 1. y= 1/2cos x 2. y= 2cos x+1 3. y= sin x-4 4. y= sin(x-4) 5. y= sin(3x) 6. y= cos(1/2x) 7. y= -cos x 8. y= -cos x+2 9. y= -...
Friday, February 10, 2012 at 12:41am by BreAnne

Science - gr. 10 physics
Calculate the area under the velocity-time graph.
Monday, January 5, 2009 at 7:40pm by GK

Calculus
Estimate the area under the curve f(x)=x^2 between x=0 and x=1 using 4 rectangles of equal width if a) The height is taken from the right endpoint b) The height is taken from the midpoint. I have no idea what exactly this question is asking me to do is this suppose to be a bar...
Sunday, March 11, 2012 at 5:53pm by Enrique

Physics - work done
You did not state in which direction the force acts. I assume in the direction of displacement. Work done will be the area under the graph FvsD. sketch the graph (F=kd is a straightline) c) Using calculus, work=integral f.dx= = int kx dx= 1/2 x^2 You should get this by ...
Wednesday, October 6, 2010 at 6:20am by bobpursley

Physics
It is really pretty simple: Displacement is the area under the velocity-time graph (remember in the 5th grade...distance=velocity*time?) So count the squares under the graph, each one is (1m/s*7sec=7m)
Monday, October 12, 2009 at 4:19pm by bobpursley

Calculus-Aproximate Areas
Estimate the area under the graph of f(x)=sin(pix) from x=0 to x=1 using the areas of 3 rectangles of equal width, with heights of the rectangles determined by the height of the curve at a) left endpoint: b) right endpoint:
Monday, November 4, 2013 at 7:03pm by Liz

Calculus-Aproximate Areas
Estimate the area under the graph of f(x)=sin(pix) from x=0 to x=1 using the areas of 3 rectangles of equal width, with heights of the rectangles determined by the height of the curve a a) left endpoint: b) right endpoint:
Monday, November 4, 2013 at 8:55pm by Liz

math
Find the area of the region under the graph of the function f on the interval [4, 10]. f(x)=10x-5 ? square units
Friday, November 30, 2012 at 11:15am by Ashton

math
"the area of the region under the graph" is an integral of f(x) from a to b, in your case from 4 to 10. ∫ f(x) from 4 to 10=∫ (10x-5)dx from 4 to 10. you just have to compute the integral and that will give you: 1/2*10x^2-5x evaluate it from 4 to 10 I hope it helps
Friday, November 30, 2012 at 11:15am by julia

hi calculus asap
the graph of a piecewise linear function f, for -1<x<4. what is the value of integral (-1 to 4) F(x) dx? the interval i gave is grerater than or equal to and less than and equal to. i didn't know how to put the underscore under the symbol. for the integral, -1 is on the ...
Thursday, November 30, 2006 at 10:51pm by Anonymous

calculus
I assume you know how to plot a graph. Choose 10 or more x values between -pi and pi, compute f(x) for each, and graph them with f(x) on the y axis. Draw a smooth line between the points. The x intercepts are where y = 0. That would be whenever cos x = 0 or 1. You should know ...
Friday, February 27, 2009 at 1:22am by drwls

MATH
Under estimate. Add (3/10)*2*5 to get exact distance 4 3/10 = (4 + 3/10) (4 + 3/10) * 2 * 5 = 4 * 10 + 3 by distributive property = 43
Sunday, March 24, 2013 at 9:01am by Damon

algebra w o r d Problem
yes, however, most people use estimate to estimate, not use a calcuator. Examples: estimate 227 divided by 23: estimate (mine) 10 estimate 333 times 14: my estimate 3330+1300=4600 Estimate usually means "approximately", and estimates are results of mental math, not calculators.
Thursday, October 13, 2011 at 8:21pm by bobpursley

trig function
Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x after it has been horizontally compressed by a factor of 1/2. Thanks so much...
Thursday, May 17, 2012 at 2:50pm by Anonymous

trig function
Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x after it has been horizontally compressed by a factor of 1/2. Thanks so much...
Thursday, May 17, 2012 at 2:51pm by Anonymous

trig function
Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x after it has been horizontally compressed by a factor of 1/2. Thanks so much...
Thursday, May 17, 2012 at 2:51pm by Anonymous

trig function
Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x after it has been horizontally compressed by a factor of 1/2. Please help, thank you!
Thursday, May 17, 2012 at 7:10pm by Kjd

trig and combine function
Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x after it has been horizontally compressed by a factor of 1/2. Thanks so much...
Wednesday, May 16, 2012 at 6:13pm by thomas

Pre-calc
Can anyone help with the following problem please...Thank u so much Let f(x) =|9x|. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the graph of f(x)
Tuesday, December 7, 2010 at 9:06pm by Amy

Pre-Calc
Can anyone help with the following problem please...Thank u so much Let f(x) =|9x|. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the graph of f(x)
Wednesday, December 8, 2010 at 11:15pm by Amy

Math
Melvin estimate 645 + 322 by adding 600 + 300. Is his estimate sum an over or under estimate please? Ty
Thursday, September 15, 2011 at 9:02pm by Kelly

CALC
Let f(x) be the function e^sin(x/10). If you wanted to estimate the area under the curve for this function from 3 to 5, how many intervals would you need to use to be sure that your upper and lower bounds differered by no more than .01?
Wednesday, January 30, 2008 at 9:58pm by anonymous

precalc h
1+1/cos = tan^2/sec-1 I will guess (parentheses missing again) you mean 1+1/cos = tan^2/(sec-1 ) use sin and cos everywhere 1+1/cos = (sin/cos)^2/([1/cos]-1 ) multiply top and bottom of right by cos^2 1 + 1/cos = sin^2/(cos - cos^2) (cos + 1)/cos = sin^2/cos(1-cos) (cos + 1)/...
Sunday, December 9, 2012 at 8:17pm by Damon

Calculus
Estimate the area under the graph f(x)=3x^3 + 5 from x=-1 to x=5 using 12 mid points? I got the right answer for using 6 mid points but what mid points would I use for 12?
Tuesday, April 20, 2010 at 11:26pm by Z32

mathematics
Go on wolframalpha dot com When page be open in rectangle type : plot f(x)=tanx , g(x)=2cosx, x=0 to 2pi and click option = Graph of g( x ) = 2 cos ( x ) are same graph of cos ( x ) but all values of cos ( x ) are multiply by 2 Remark : 360 ° = 2 pi radians
Saturday, May 4, 2013 at 5:31am by Bosnian

Pre-calc
Can someone please show me the steps to this problem...Thanks in advance. Let f(x) = Ð9xÐ. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the graph of f(x)
Tuesday, December 7, 2010 at 9:06pm by Amy

Pre-calc
Reiny this is the complete problem...Sorry about all that...Thank you Let f(x) =|9x|. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the graph of f(x)
Tuesday, December 7, 2010 at 9:06pm by Amy

math
What are the equation on these 1. Determine the amplitude of y = -16 cos (x) 2. Determine the amplitude of = -sin (x) 3. Determine the domain of = -5 cos (x) 4. Determine the range of y = -10 sin (x) 5. Determine the period of y = -5 cos (2ðx) 6. Determine the phase shift of y...
Thursday, December 17, 2009 at 12:42pm by Bernice

science/math
I have to make this density graph on a standard sheet of graph paper of this area outside. Each side of the area is a meter (in real life). What would be an good scale to use for my graph on graph paper?
Friday, September 26, 2008 at 6:52pm by Jasmine

Triggggggg ;(
Use your graphing calculator to graph y = cos^−1(x)in degree mode. Use the graph with the appropriate command to evaluate each expression. (a)cos^−1(√2/2) = ___________˚ (b)cos^−1(-1/2) = _____________° (c)arccos (√3/2) = _____________˚ ...
Monday, March 3, 2014 at 6:17am by Anonymous

calculus
A rectangle with its base on the x-axis is to be inscribed under the graph of y=2-x^2. Find the height of the rectangle if the area is the largest possible area.
Sunday, March 2, 2008 at 9:36pm by Anonymous

Calculus
Let's think for a minute about what this first question means. We have some function y(t) which we integrate from t = 1 to t = x^3. Then we want to find out how much the area under the function changes for a smal change in x. Well the change of the area for a change dx in x is...
Wednesday, December 5, 2007 at 3:16am by Damon

calculus
For lack of specificity, I will let θ be the angle between the upper base and a side. I expect it will end up 90°, making a square cross-section, but let's wee what happens. The height of the trapezoid will be 10sinθ, so the area is a = 10sinθ (10+10+2*10cos&#...
Monday, June 11, 2012 at 10:49am by Steve

Physics
On a postition versus time graph to find the acceleration you would simply find the area under the graph right? and how would you figure out whether acceleration is increasing, decreasing, constant of unknown from a graph? My guess is that the accereration is constant throughout.
Friday, September 21, 2007 at 1:43pm by Tammy

Calculus ll - Improper Integrals
Find the area of the curve y = 1/(x^3) from x = 1 to x = t and evaluate it for t = 10, 100, and 1000. Then find the the total area under this curve for x ≥ 1. I'm not sure how to do the last part of question ("find the the total area under this curve for x ≥ 1.") ...
Saturday, October 2, 2010 at 9:32pm by Alyssa

Physics
In Figure 10-20, the magnitude of the force necessary to stretch a spring is plotted against the distance the spring is stretched. Figure 10-20 (a) Calculate the slope of the graph, k, and show that F = kd, where k = 25 N/m. (b) Find the amount of work done in stretching the ...
Tuesday, October 25, 2011 at 6:07pm by Claire

calculus
A rectangle with its base on the x-axis is to be inscribed under the graph of y=2-x^2. Find the height of the rectangle if the area is the largest possible area. (Round to the nearest hundreth)
Sunday, November 13, 2011 at 7:38pm by Sarah

math
A government survey conducted to estimate the mean price of houses in a metropolitan area is designed to have a margin of error of \$10,000. Pilot studies suggest that the population standard deviation is \$70,000. Estimate the minimum sample size needed to estimate the ...
Sunday, May 6, 2012 at 5:37pm by jennifer

math
A government survey conducted to estimate the mean price of houses in a metropolitan area is designed to have a margin of error of \$10,000. Pilot studies suggest that the population standard deviation is \$70,000. Estimate the minimum sample size needed to estimate the ...
Sunday, July 15, 2012 at 5:25pm by Vivian

6th G-Math
1.What is a reasonable estimate for the area of a circle with radius 4 cm? A. Area=12cm^2 B. Area=16cm^2 C. Area=24cm^2 D. Area=48cm^2
Monday, April 9, 2012 at 9:20pm by Lauren

Trig-Medians and law of cosines and sines
median length x = BC length median hits BC at D triangle ABC 4^2 = 3^2 + x^2 - 6 x cos B triangle ABD x^2 = 3^2 + (x/2)^2 - 3 x cos B ================================= 16 = 9 + x^2 - 6x cos B x^2 = 9 +x^2/4 -3 x cos B x^2 -6 x cos B -7 = 0 3x^2/4 +3 x cos B - 9 = 0 x^2 - 6 x ...
Wednesday, November 20, 2013 at 11:53am by Damon

Physics Multiple choice!!
Well I've already tried them and Im I have no clue! The slop of a straight line graph is the vertical change ____ the horizontal change. b) added to A graph that is a hyperbola represents ____ relationship c) a linear The slop of a position-time graph is the ____ of an object ...
Monday, January 7, 2008 at 3:09pm by Tomas

Math
area of walls: 2(50*10 + 30*10) = 1600 area under roof: 2(1/2 * 30 * 6.5) = 195 total area: 1795 ft^2 gallons = 1795ft^2 / 400ft^2/gal = 4+ gals, or 5 gallons
Wednesday, September 26, 2012 at 1:21am by Steve

Calculus (Area Between Curves)
Thank you Nade for making this correction! I went back and graphed the functions with pencil to see if I could figure a rough estimate for the area. I found that these function make an odd trapezoid shape. The area of the solid trapezoid portion of the graph is 15 and then ...
Wednesday, February 29, 2012 at 2:39pm by Mishaka

Calc I
with finding the area under a line i need to find anti derviatives for: e^3x dx Cos^4 x Sinxdx e^(x^2) xdx e^x^2 dx Cos(3x)dx
Thursday, December 8, 2011 at 12:26pm by kenny

MATH HELP
1. Consider the following. f(x)=8x-10 g(x)=x^2-4x+10 (a) Find the points of intersection of the graphs. ANSWER:(2,6) are the smaller values and (10,70) are the larder values (b) Compute the area of the region below the graph of f and above the graph or g. How do I answer part b?
Tuesday, July 20, 2010 at 12:26pm by Jason

Physics
What does the area under a velocity vs. time graph represent??
Friday, September 18, 2009 at 9:51pm by Layla

Terminal Velocity
If you have a velocity versus time graph, the distance traveled is the area under that velocity curve. For every little vertical slice of the graph from the time axis up to the velocity curve the little area around that vertical line is velocity times that little time, which ...
Tuesday, November 30, 2010 at 7:46pm by Damon

Algebra 2 Need Help
1. function g(x)=-x^2-3x+7 . Find the area under the curve for the domain –4£ x £ 1. a 71.6 square units b. 46 square units c.35.83 square units d.17.916square units 2. y=2sin(circle with a line through it) a. How many cycles occur in the graph? b. Find the period of the graph...
Sunday, August 5, 2012 at 4:33pm by Anonymous

algebra
y= -x^2-12x+28 A painter can use the formula A=2/3bh to estimate the area of space under the parabola. Calculate area in square ft under each arch ~ if there are 8 arches to be painted how many square ft must be painted ~ if 1 gallon paints 200 square ft , how many gallons ...
Sunday, March 31, 2013 at 8:30pm by nancy

calculus(Lab)
Well, first graph the graph of f(x)=-1/10x^2 + 3 2. We are going to approximate the area between f and the x-axis from x = 0 to x = 4 using rectangles (the method of Riemann sums). This is not the entire area in the first quadrant, just most of it. Draw four inscribed ...
Wednesday, January 25, 2012 at 5:32pm by Yoona

trigonometry
find the grahp of cos(x-2) first and then switch your x and y value, oh another thing with arc cos you have to limit it from one point to another or else its not a function anymore, so say a regular cos has 2pi for its period dont graph that whole 2pi for the arccos graph one ...
Saturday, February 2, 2013 at 1:42am by vii

geometry
14. Question says that there is a triangle with a base of x units and height h units and two sides of length 10 units. Answer the following questions: • Draw a representation of this situation (the triangle). • Find a formula for h in terms of x. h = square root {10^2-(x/2)^2...
Tuesday, July 10, 2012 at 3:23am by nisha

physics
the slope of a velocity-time graph represents? the area under a velocity time-graph represents? the slope of a line drawn tangent to a curved position-time graph represents..?
Monday, September 14, 2009 at 8:21pm by kaaay

algebra
The drama club is building a backdrop using arches whose shape can be represented by the function f(x)=-x^2+2x+8, where x is the length in feet. The area under each arch is to be covered with fabric. -What is the length of the segment along the floor of each arch? -What is the...
Thursday, May 8, 2008 at 10:32pm by astrid

Math
Graph and identify the kind of conic the graph represents: a. x(t)=3 cos t y(t)=3 sin t on [0,2pi] b. x(t) =2 cos t y(t) =5 sin t on [1,5] I tried graphing A on my TI-89 calculator as y(1)=3 cos x and y(2)=3 sin x. All I see are two wave-like graphs crossing each other; I don'...
Tuesday, August 11, 2009 at 4:27pm by Nikki

calculus
Find the area of the region under the graph of the function f on the interval [-1, 2]. f(x) = 6x + 1
Wednesday, December 8, 2010 at 12:32pm by Anonymous

precalculus
assuming we take f(0) = 3 because that's where a seat starts, we want f(x) to have a minimum of 3, an amplitude of 10 (the wheel radius) and a period of 10 f(t) = 3 + 10(1-cos(2pi t/10)) since cos has a max at t=0, 1-cos has a min.
Monday, March 25, 2013 at 11:44pm by Steve

Pre-Calculus
cos^4 - sin^4 = (cos^2+sin^2)(cos^2-sin^2) Remember algebra I and your double-angle formulas? working with the right side, we have csc^2 - csc cot 1/sin^2 (1 - cos) 1/(1-cos^2) (1-cos) (1-cos) / (1+cos)(1-cos) 1/(1+cos) Hmmm. I don't get 1/cos (cos x/ (sec x -1))- (cos x/ tan^...
Thursday, October 31, 2013 at 10:03am by Steve

Math: Calculus
what is f(x) at x=4,6, 8 area=f(4)*2+f(6)*2 + f(8)*2 that is three rectangles of width 2, height to f(x)(left end point). How in the world would you estimate to five digits of precision. "estimate" f(4)=24 f(6)=48 f(8)=80 estimate: you do it. Twice the sum of those numbers.
Friday, November 12, 2010 at 7:02pm by bobpursley

math
A spherical ballon is being inflated at the rate of 35cc/min. the rate of increase in the surfece area(un cm²/min.) of the ballon when its diameter is 14cm is: 1. 10 * under root 10 2. under root 10 3. 100 4. 10
Wednesday, May 1, 2013 at 5:16pm by aku

Calculus
Find the area cut off by x+y=3 from xy=2. I have proceeded as under: y=x/2. Substituting this value we get x+x/2=3 Or x+x/2-3=0 Or x^2-3x+2=0 Or (x-1)(x-2)=0, hence x=1 and x=2 are the points of intersection of the curve xy=2 and the line x+y=3. Area under curve above X axis ...
Tuesday, April 1, 2014 at 3:07am by MS

physics
sorry I copy and pasted and it came out weird. Part a- take the area under the curve and multiply it by (-1) because W= -delta u (area under the curve). part b- use Kf + Uf = Ki + Ui we know that Ui=0 and Uf= 2J (just by looking at the graph) they gave you your final velocity ...
Wednesday, December 2, 2009 at 10:52pm by Gia

Math
Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve. x = sec Q y = cos Q x^2 + y^2 = 1/cos^2 + sin^2/cos^2 = x^2(1 +sin^2) = x^2(2-cos^2) x^2(2-1/x^2) = 2x^2 - 1 x^2 - y^2 = 1 My teacher said to use secant*cosine = 1. ...
Tuesday, May 4, 2010 at 6:22pm by Abbey

Graphing - Trigonometry
Below is the graph of y = a cos(bx+c)+d, where a, b, and c are positive, and c is as small as possible. Find a + b + c + d. prntscr. com/20mkyo The link is to a screenshot of the graph. (without spaces) I'm unsure of how to solve - I tried it and got y = 2 cos (2/3x + 5pi/2...
Tuesday, October 29, 2013 at 6:24pm by Sam

Calculus
Use a simple area formula from geometry to find the area under function A(x) that gives the area under the function f(x) = 9 on the interval [2, x].
Sunday, December 19, 2010 at 12:50pm by Raj

algebra
Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph. Find the area of a rectangle if three of its corners are (-0.1,-3.4), (-7.9,-3.4), and (-0.1,6.8). one I draw the graph how do I figure out the area of the...
Monday, February 28, 2011 at 1:39pm by bianca

Calculus
Consider the function x^2+x-4 Estimate the area between the graph and the x-axis between x=2 and x=4 using four rectangles and right end points.
Tuesday, December 17, 2013 at 12:27pm by Lindsay

Physics
Layla, my book says the area under a velocity vs. time graph is displacement.
Friday, September 18, 2009 at 9:51pm by kristen

integration
Find the area of the region under the graph of the function f on the interval [-1, 2]. f(x) = 6x + 1 bound by the x axis
Wednesday, December 8, 2010 at 1:09pm by peter

physics
You don't really need to draw a graph to figure that out. We can't draw them for you here, anyway. You will have to convert the 3.6 cm to 0.036 m and the 5.6 cm to 0.056 m. The answer is k[(.056)^2 - (.036)^2] If you used a graph to do it, you should plot the force kx vs x and...
Tuesday, November 17, 2009 at 11:51am by drwls

Calculus
Let R be the region in the first quadrant under the graph of y=1/sqrt(x) for 4</=x</=9. (a)Find the area of R. I took the antideriative. Then, I plugged in the 9 and 4. I got 2. (b) If the line x=k divides the region R into two regions of equal area, what is the value of...
Thursday, December 13, 2007 at 10:11pm by Anonymous

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members