02/11/18

Geometry help
write the equation for the circle with center (-16,-5) that has a circumference of 22π
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02/05/18

A diagram shows a sector of a circle with centre O and radius 20cm.
A circle with centre C and radius xcm lies within the sector and touches P,Q,R |<POR|=1.29 radians. (a)By considering the triangle POC, show that x is equal to 7.5cm, correct to one decimal... more
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02/03/18

Altitudes AD,CF of the triangle ABC meet at H. X,Z,P are the midpoints of AB,AC,CH respectively. Prove that angle XZP is a right angle
This is a geometry problem out of the book "A course in Geometry Plain and Solid" by Arthur Weeks and Jackson Adkins
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02/01/18

How fast is it’s distance from the origin changing
An ant is walking left along the curve y=2/x. It’s x-coordinate is changing at 1 unit per minute. When the ant is at point (2,1), how fast is it’s distance from the origin changing?
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01/31/18

TRIG 1/2 ANGLE FORUMLAS
The questions are: "If sin B = -1/3 with B in QIII, find tan B/2. Also find sin B/2   The answer for tan B/2 is-3-2sqrt(2)   The answer for sin B/2 is \sqrt((3+2\sqrt(2))/(6))   These are... more
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01/27/18

Trig/Geometry Help
https://i.imgur.com/mxMdDyA.png (a) Find length of a side of the rhombus to the nearest tenth.(b) Using your answer in part a, find the perimeter of rhombus ABCD.(c) Find the length of diagonal... more
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01/26/18

I'm given the sequence 5^1/2, (5 + 5^1/2), (5 + (5+5^1/2)^1/2). How do I define it recursively?
I can't seem to figure out the relation recursively even if there's clearly a pattern. 
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01/24/18

give an equation in standard form passing through (−3, 3) perpendicular to the line through the origin with slope 0.2
give an equation in standard form passing through (−3, 3) perpendicular to the line through the origin with slope 0.2
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12/29/17

Rewriting trigonometric identities
How do I rewrite (tanθ+secθ)/cosθ in terms of sinθ? (fully simplified)
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12/27/17

graph of the function
what would be the graph of functions F(X) = f(2x)-1G(X)= 1-2f(x)
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12/13/17

Calculus help
Determine the equation of the line in slope-intercept form which is tangent to the following curve at x = 1.   f(x)=2/(3√x^2)
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12/07/17

use the limit process to find the area of the region between the graph of the function and the x-axis over the interval [0,1]
y=x2+1
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11/19/17

The perpendicular bisector of side AB of ∆ABC intersects side AB at point D and BC at point E. If m∠CAB = 82° and m∠C = 68°, find m∠CAE.
The perpendicular bisector of side AB of ∆ABC intersects side AB at point D and BC at point E. If m∠CAB = 82° and m∠C = 68°, find m∠CAE.
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11/16/17

Estimate Area
Estimate the area under the graph of f(x) = 1/(x+4) over the interval over the interval [0,5] using eight approximating rectangles and right endpoints.   Rn= ?   Repeat the approximation using... more
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11/04/17

Find the point of the line
Find the point on the line 5x+3y+3=0 which is closest to the point (-3,3).   =(?, ?)
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11/03/17

Find the volume of the solid obtained by rotating the region bounded by the given curves?
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=x^2, x = y^2 about the axis x =−1
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11/02/17

Consider the curve C given by the equation
Consider the curve C given by the equation: C · · · √ x + √ y = √ a, where a is a constant, a > 0. Let (x0, y0) with x0 > 0, y0 > 0, be a point on C. If (x1, 0) and (0, y1) are x and y... more
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11/02/17

Angle Bisectors
In △ABC, the bisectors of ∠A, ∠B, and ∠C cut the opposite sides into lengths a1and a2, b1 and b2, and c1 and c2, respectively, labeled in order counterclockwisearound △ABC. Find the perimeter of... more
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11/01/17

A curve C is given by the equation:
A curve C is given by the equation:x2 + y2 = (2x2 + 2y2 − x)2(a) Find all points (0, y) on the curve C, where y≠0. (b) At each of the points found in the part (a) above, find an equation of the... more
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11/01/17

Consider the curve C given by the equation
Consider the curve C given by the equation: C · · · √ x + √ y = √ a,   where a is a constant, a > 0. Let (x0, y0) with x0 > 0, y0 > 0, be a point on C. If (x1, 0) and (0, y1) are x and... more
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11/01/17

calculus optimization see below
An observatory is to be in the form of a right circular cylinder surmounted by a hemispherical dome. If the hemispherical dome costs 22 times as much per square foot as the cylindrical wall, what... more
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10/30/17

If the common tangents to the parabola, x^2= 4y and the circle, x^2 + y^2 = 4 intersect at the point P, then what is the distance of P from the origin?
I need the detailed solution. Plz help
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10/29/17

The perpendicular bisector of side AB of ∆ABC intersects side BC at point D. Find AB if theperimeter of ∆ABC is with 12 cm larger than the perimeter of ∆ACD.
Hi there i just need a little help. If you could provide an explanation that would ve nice
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10/29/17

find the limit as h approaches 0
find limh→0 {[(27+h)(1/3)] - 3} / h
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10/26/17

Write a linear function with f(0) = 7 and f(3) =1
How do I write the equation for f(x) With f(0) =7 and f(3) =1
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