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ddocm
Nombre de usuario
ddocm
Puntuación
69
Membership
Stats
Preguntas
14
Respuestas
3
15 Questions
3 Answers
0
454
1
+69
Function problem
If f(x)= (ax+b)/(cx+d), abcd ≠ 0 and f(f(x))=x for all x in the domain of f, what is the value of a+d?
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ddocm
20 feb 2021
0
407
1
+69
Function problem
Let N,O be functions such that N(x) = 2/sqrt(x), and O(x) = x^2. What is N(O(N(O(N(O(3)))))?
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ddocm
20 feb 2021
0
499
1
+69
Compute the sum (a +(2n+1)d)^2- (a + (2n)d)^2 +(a + (2n-1)d)^2 - (a+(2n-2)d)^2 + ... + (a+d)^2 - a^2
Compute the sum (a +(2n+1)d)^2- (a + (2n)d)^2 +(a + (2n-1)d)^2 - (a+(2n-2)d)^2 + ... + (a+d)^2 - a^2
A full explanation on how to do the problem would be appreciated.
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ddocm
14 feb 2021
0
745
4
+69
Power of a point circle question
In the diagram below, EU = 8, UF = 7,GV = 5, VH = 16, and UV= 6. Find XY.
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ddocm
3 feb 2021
0
704
3
+69
Semicircle problem
In the adjoining figure, CD is the diameter of a semicircle with center O. Point A lies on the extension of DC past C; point E lies on the semicircle, and B is the point of intersection (distinct from E) of line segment AE with
lee mas ..
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ddocm
29 ene 2021
0
755
3
+69
Circle in a trapezoid problem
Quadrilateral ABCD is an isosceles trapezoid, with bases AB and CD. A circle is inscribed in the trapezoid, as shown below. (In other words, the circle is tangent to all the sides of the trapezoid.) The length of base AB is 2x and
lee mas ..
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ddocm
28 ene 2021
0
435
1
+69
weird function problem
If f(x)= -1/x , what is f(f(f(f(f(6)))))?
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ddocm
22 ene 2021
0
484
1
+69
Given that f(x)= (1/ 𝝅 ) x , what is the range of f(x) on the interval [0,∞) ?
Given that f(x)= (1/𝝅)x, what is the range of f(x) on the interval [0,∞)?
Give your answer in interval notation.
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ddocm
22 ene 2021
+1
515
2
+69
Three circles inside of a triangle- geometry
Three circles are drawn, so that each circle is externally tangent to the other two circles. Each circle has a radius of 2. A triangle is then constructed, such that each side of the triangle is tangent to two circles, as shown below. Find the perimeter
lee mas ..
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ddocm
21 ene 2021
0
523
2
+69
Trapezoid proof problem
Quadrilateral ABCD is an isosceles trapezoid, with bases AB and CD. A circle is inscribed in the trapezoid, as shown below. (In other words, the circle is tangent to all the sides of the trapezoid.) The length of base AB is 2x and the length of
lee mas ..
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ddocm
21 ene 2021
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último
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#2
+69
0
thanks!
ddocm
7 mar 2021
#4
+69
+3
Yes this is correct. Thank you.
ddocm
3 feb 2021
#2
+69
+1
The answer is wrong. GV * VH = XV * VY isn't true.
ddocm
3 feb 2021