Homework Help

Math

For what values of k is the line y=k tangent to the graph (x-4)^2 + y^2 = 16

Posted by jimsteven on May 4, 2011 at 3:22 PM via web. 1 educator answer.

Math

What is the largest 3-digit number that has only 2 and 5 as prime factors?

Posted by cesther86 on May 4, 2011 at 3:08 PM via web. 1 educator answer.

Math

3 students are selected from a class that has 10 boys and 5 girls. What is the probability that 1 boy and 2...

Posted by beatrice0866 on May 4, 2011 at 2:57 PM via web. 1 educator answer.

Math

If cot x= -3/4 and 90° < x < 180° how to find sin x

Posted by steve1234 on May 4, 2011 at 2:30 PM via web. 1 educator answer.

Math

What is 1/2log(25) + log(20)?

Posted by homeworksdone3 on May 4, 2011 at 2:23 PM via web. 1 educator answer.

Math

Solve the equation: 6a^-2 + a^-1 = 2

Posted by homeworksdone on May 4, 2011 at 2:17 PM via web. 1 educator answer.

Math

Prove that if x^y = y^x, then ln(x)/x = ln(y)/y.

Posted by homeworkdone2 on May 4, 2011 at 2:11 PM via web. 1 educator answer.

Math

What is the indefinite integral of (14x)/(x^4+1)

Posted by alfreddie on May 4, 2011 at 2:03 PM via web. 1 educator answer.

Math

What will be the best way to solve this equation 5(2.04)^x = 19. Solveusing a graphing calculator or solving it...

Posted by lilstunna10 on May 4, 2011 at 1:09 PM via web. 1 educator answer.

Math

What is the best way to solve the equation 5*(2.04)^x = 19.

Posted by yetty on May 4, 2011 at 1:03 PM via web. 1 educator answer.

Math

-7square root 6 minus 3 square root 9 plus 2 square root 96

Posted by buckrun on May 4, 2011 at 10:24 AM via web. 1 educator answer.

Math

square root 6x5y1 times square root 2xy2

Posted by buckrun on May 4, 2011 at 10:22 AM via web. 1 educator answer.

Math

inverse and radical functions and relations:  square root of 54a5b15 to 3nth  

Posted by buckrun on May 4, 2011 at 10:19 AM via web. 1 educator answer.

Math

Please factor this equation:x^2 + 2xy - y^2 + 4

Posted by brandih on May 4, 2011 at 2:56 AM via web. 1 educator answer.

Math

QuestionWhich of the following numbers does b have to be divisible by for the equation ax^2 + bx + c = 0 to have...

Posted by jane1992 on May 4, 2011 at 2:42 AM via web. 1 educator answer.

Math

How to find the measure of the intercepted arc?I have to find the measure of an intercepted arc in a circle of...

Posted by bjanuary23 on May 4, 2011 at 2:29 AM via web. 1 educator answer.

Math

RootsWhat are the roots of the derivative of y=x^2/(2x-1)-2/(2x-1) ?

Posted by else9393 on May 4, 2011 at 2:25 AM via web. 1 educator answer.

Math

Find the derivative:Find the derivative of y = sqrt x, from the first principles.

Posted by luna9219 on May 4, 2011 at 2:18 AM via web. 1 educator answer.

Math

Determine the quadratic if f(-1)=4, f(1)=2, f(2)=7 .Determine the quadratic if f(-1)=4, f(1)=2, f(2)=7 .

Posted by jamielegood on May 4, 2011 at 2:04 AM via web. 1 educator answer.

Math

Area of the circle.Find the equation and the area of the circle if the ends of the diameter (18,-13) and (4,-3).

Posted by greta92 on May 4, 2011 at 1:55 AM via web. 1 educator answer.

Math

Circle equation.Determine the equation of the circle whose circumference is 14*pi and the center is (3,-2).

Posted by clockbeige on May 4, 2011 at 1:50 AM via web. 1 educator answer.

Math

mathSolve in R sinx=1+cos^2x

Posted by markusg on May 4, 2011 at 1:28 AM via web. 1 educator answer.

Math

Tangent.What is the domain and range of y=-tan x?

Posted by creativluana on May 4, 2011 at 1:09 AM via web. 1 educator answer.

Math

Differentiate f(x) = 2sin(x^2)*cos(x^2).Differentiate f(x) = 2sin(x^2)*cos(x^2).

Posted by roperswen on May 4, 2011 at 1:01 AM via web. 1 educator answer.

Math

Equation.Find the solution of the equation 7^(3x-2)=17 in terms of logarithms.

Posted by adelajda on May 4, 2011 at 12:02 AM via web. 1 educator answer.

Math

Parallels.Prove that the line d is parallel to the plane P if the equation of the plane is 2x+3y+z-1=0.

Posted by ingw33 on May 3, 2011 at 11:55 PM via web. 1 educator answer.

Math

Circumference of the circle.. What is the circumference of the circle if the cylinder has 39 volume and height...

Posted by jolenta on May 3, 2011 at 11:49 PM via web. 1 educator answer.

Math

mathFind the area bounded by the graphs of the following functions: f(x)=x^2, g(x)=x^3.

Posted by andrzej on May 3, 2011 at 11:34 PM via web. 1 educator answer.

Math

exact valueFind the value of sinx/2 if sinx=1/4 and x is such that pi/2<x<pi.

Posted by dir3ctionn3 on May 3, 2011 at 11:19 PM via web. 1 educator answer.

Math

Find dy/dx if y=ln|2x^2-3x|

Posted by tkniz on May 3, 2011 at 11:04 PM via web. 1 educator answer.

Math

Find all points where the graph of y=2x^3-9x^2+12x-7 has a horizontal tangent line

Posted by tkniz on May 3, 2011 at 11:02 PM via web. 1 educator answer.

Math

Write y=(2-x)^5/3 as f[g(x)], defining f(x) and g(x)

Posted by tkniz on May 3, 2011 at 11:01 PM via web. 1 educator answer.

Math

Find the slope of the tangent line to y=x^5-3x^-3 at x=-2

Posted by tkniz on May 3, 2011 at 11:00 PM via web. 1 educator answer.

Math

If f(x)=e^square root of x*ln*square root of x, find f'(x)

Posted by tkniz on May 3, 2011 at 10:57 PM via web. 1 educator answer.

Math

QUADRATICS questions !!!please answer questions 1, 2, 3...

Posted by mr-bean on May 3, 2011 at 10:39 PM via web. 1 educator answer.

Math

Find values of k so that point (0,k) lies on the triangle formed by the lines y+3x+2=0, 3y-2x-5=0, 4y+x-14=0.

Posted by bhalachandra on May 3, 2011 at 10:06 PM via web. 1 educator answer.

Math

φ10 = aφ + b for a pair of positive integers a and b. The value of b for which this happens is what?

Posted by ttt12 on May 3, 2011 at 9:42 PM via web. Be the first to answer.

Math

A pizza is cut into 6 equal slices. The diameter of the pizza is 14 inches. What is the perimeter of each slice?

Posted by timw996 on May 3, 2011 at 3:35 PM via web. 1 educator answer.

Math

What is the equation of a line perpendicular to 8y-2x=-6 and also passing through the point (2,3).

Posted by paul1234 on May 3, 2011 at 3:25 PM via web. 2 educator answers.

Math

let f: R  --->   R+ and  g: --> R+ . R be defined as     f(x) = ex       and g(x) =...

Posted by niceperson on May 3, 2011 at 2:57 PM via web. 1 educator answer.

Math

What is the 29th term of the AP 6, 14, 22 …

Posted by lxsptter on May 3, 2011 at 1:42 PM via web. 1 educator answer.

Math

Solve: e^2x + 5e^x = 24

Posted by steve1234 on May 3, 2011 at 12:56 PM via web. 1 educator answer.

Math

Prove that : (tan^2 x + 1) / (1 - sin^2 x) = sec^4 x

Posted by schooldump on May 3, 2011 at 12:46 PM via web. 1 educator answer.

Math

Prove 2^n > n for all positive integers n.

Posted by beatrice0866 on May 3, 2011 at 12:34 PM via web. 1 educator answer.

Math

Determine the perimeter of a rectangle that has a length of 21 centimeters and an area of 168 square centimeters.

Posted by grade83 on May 3, 2011 at 12:25 PM via web. 1 educator answer.

Math

What is the value of b if 3x + by + 8 = 0 is equidistant from (1,2) and (3, 8)

Posted by grade82 on May 3, 2011 at 12:12 PM via web. 1 educator answer.

Math

Find the angles of a right triangle if the difference of the acute angles is 24 degrees.

Posted by grade81 on May 3, 2011 at 12:03 PM via web. 2 educator answers.

Math

In how many ways can 5 students line up for a group photograph if 2 of the 5 are not on speaking terms and will...

Posted by dhopkins895 on May 3, 2011 at 11:46 AM via web. 1 educator answer.

Math

How do I find the perimeter of a circle?

Posted by bck13 on May 3, 2011 at 8:37 AM via web. 1 educator answer.

Math

Math problem.The mean of 2 numbers is 12. Find the numbers if the product is maximum.

Posted by browntim3 on May 3, 2011 at 8:24 AM via web. 1 educator answer.