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Post New Question
All Questions
+0
231375 Questions
0
645
1
help
Simplify tan(20) + tan(40) + sqrt(3)*tan(20)*tan(40). (All angles are in degrees.)
heureka
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Guest
Dec 13, 2019
+1
725
2
help
The longer base of an isosceles trapezoid is a chord of a circle, and the shorter base is tangent to the circle. If the length of one leg is 5 and the lengths of the bases are 24 and 18, find the area of the circle.
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Guest
Dec 13, 2019
0
699
5
+262
help!
Find constants A and B such that (x + 7)/(x^2 - x - 2) = A/(x - 2) + B/(x + 1 for all x such that x\neq -1 and x\neq 2. Give your answer as the ordered pair (A,B).
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atlas9
Dec 13, 2019
+2
1006
6
+2862
Test Validation
Can someone help validate my test?
https://forms.gle/6rnd6ryVKctoRtq17
read more ..
off-topic
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CalculatorUser
Dec 13, 2019
0
1422
1
Derivative of Inverse Functions
If the function f is defined by f(x) = 2x+sinx and the function g is the inverse of f, then g'(2)=
A) 0.324
B) 0.342
C) 0.360
D) 0.378 <#>
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Guest
Dec 13, 2019
0
487
7
matrix help
thank you
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Guest
Dec 13, 2019
0
885
2
A number is multiplied by 3. Next, 6 is added to the product. Then, the sum is divided by 8. If the result is 6, what is the number ?
A number is multiplied by 3. Next, 6 is added to the product. Then, the sum is divided by 8. If the result is 6, what is the number ?
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Guest
Dec 13, 2019
+1
809
3
help
If a + b + c = 56, a^2 + b^2 + c^2 = 1344, and a^2 = bc, then find abc.
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Guest
Dec 13, 2019
0
595
2
help
Find the 100th digits after the decimal point in the decimal expansion of 1/7.
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Guest
Dec 13, 2019
0
581
2
HELP!!!
5 + g/8 = 2(3g + 4) -6g dunno what g is
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Guest
Dec 13, 2019
-4
977
13
+30
/gone
/gone
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whoisjoe
Dec 13, 2019
0
568
1
help
A vector makes an angle of 30 degrees with the x-axis, and an angle of 80 degrees with the y-axis. Find the angle between the vector and the z-axis.
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Guest
Dec 13, 2019
0
395
1
help
Solve the puzze ABC - CBA = CAB. (Each letter stands for a digit.)
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Guest
Dec 13, 2019
0
454
1
hep
Find the number of positive integers n such that all the angles in a regular n-gon have an integer number of degrees.
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Guest
Dec 13, 2019
+1
709
1
+7
plz help
If the flour to sugar ratio is 5 liters flour to 1 liter sugar, then how much sugar is needed if only 2 liters of flour are used? (Give the answer as a fraction.)
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chyro
Dec 13, 2019
Dec 12, 2019
0
463
1
geometry
Circles centered at A and B each have radius 2. Point O is the midpoint of line AB, and OA = 2*sqrt(2). Segments OC and OD are tangent to the circles centered at A and B, respectively, and line EF is a common tangent. What is the
read more ..
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Guest
Dec 12, 2019
0
672
2
n the diagram, angle A is right...
https://latex.artofproblemsolving.com/e/d/3/ed32b01b9329769b3c0a5200881c125398c4a2f3.png
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Guest
Dec 12, 2019
0
1716
2
math
An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic centimeters in the volume of the cone? Express your answer to the nearest whole number, without units.
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Guest
Dec 12, 2019
+1
665
2
interesting video i found :)
wanted to share a cool video i found about tangent lines, admittedly i dont understand it fully, probably one of the math whizzes here will :)
https://www.youtube.com/watch?v=n95qJo4ZcnU
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Guest
Dec 12, 2019
0
500
1
very cool video i found :)
video about tangent lines, admittedly i dont understand it fully but it is very interesting, maybe melody will understand
https://www.youtube.com/watch?v=n95qJo4ZcnU
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Guest
Dec 12, 2019
0
798
1
A tractor has a rear wheel with a circumference of x m. The circumference of the front wheel is 6 m less. If the front wheel makes 10 more r
A tractor has a rear wheel with a circumference of x m. The circumference of the front wheel is 6 m less. If the front wheel makes 10 more revolutions than the rear wheel every 360m, what is the circumference in m of the front wheel?
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Guest
Dec 12, 2019
0
385
2
Geometry pls help I really need it
I need help with this question pls help me
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Guest
Dec 12, 2019
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