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All Questions
+0
230804 Questions
0
377
1
geo problem
Three circles of radius 5 are drawn so that each touches the other two. Find the radius R of the outer circle that touches all of the three circles, as shown in the figure below.
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Guest
Jan 4, 2021
0
289
1
help plz
What is 2021^2021 mod 31?
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Guest
Jan 4, 2021
0
438
1
algebra
If x + y = 3 and x + y = 5, then find x^2 + y^2.
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Guest
Jan 4, 2021
0
474
2
i need help with my math question
w/9=-180 what is w
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Guest
Jan 4, 2021
0
728
1
coordinates
The center of a circle has coordinates (6, -5). The circle is reflected about the line y = 1.What are the x, y coordinates of the center of the image circle? State the x coordinate first.
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Guest
Jan 4, 2021
0
314
1
Functional Equations Problem
Let $f(x)$ be a function such that $f(0)=1$ and $f(xy)=f(\frac{x^2+y^2}{2})+(x-y)^2$ for all real numbers $x$ and $y$. Find $f(x)$.
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Guest
Jan 4, 2021
0
469
1
Halpp
(a) How many cards are in a complete deck of Set?
(b) How many unique sets are there?
When three cards form a set, we can also count the number of attributes for which all three cards are the same. For example, in the set below,
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Guest
Jan 4, 2021
0
398
1
probability question
I randomly pick an integer between 1 and 10 inclusive. What is the probablility that I choose a p such that there exists an integer q so that p and q satisfy the equation pq-2p-2q=2? Express your answer as a common fraction.
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Guest
Jan 4, 2021
0
457
2
geometry
Triangle ABC is acute. Point D lies on AC so that line BD is perperdicular to line AC, and point E lies on AB such that line CE is perpendicular to line AB . The intersection of segments line CE and line BD is P. Find the value
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Guest
Jan 4, 2021
0
606
2
12 – x = –3x + 36
12 – x = –3x + 36
x = ?
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Guest
Jan 4, 2021
0
547
1
Halp
There is a unique polynomial $P(x)$ of degree $4$ with rational coefficients and leading coefficient $1$ which has $\sqrt{1+\sqrt{6}}$ as a root. What is $P(1)$?
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Guest
Jan 4, 2021
0
423
1
square
Two identical touching circles of radius r share the same tangent. A square of side s, rests on the tangent and touches the two circles as shown in the diagram above. If r is 10 units. Then the side ss of the square is how many
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Guest
Jan 4, 2021
0
436
2
circle
An equilateral triangle of side length 2 units is inscribed in a circle. Find the length of a chord of this circle which passes through the midpoints of two sides of the triangle.
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Guest
Jan 4, 2021
+1
424
3
nedd help
In rectangle ABCD, AB = 6 and BC = 4. EF is parallel to BC, and EC = 1. Rectangle GHIJ is inscribed in rectangle AFED, such that it is similar to rectangle ABCD. Find the ratio of the area of GHIJ to the area of ABCD.
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Guest
Jan 4, 2021
0
449
2
probability
Two numbers are independently selected from the set of positive integers less than or equal to 5. What is the probability that the sum of the two numbers is less than or equal to their product? Express your answer as a common fraction.
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Guest
Jan 4, 2021
0
820
3
Help With This Question
Ryosuke is picking up his friend from work. The odometer reads 74,568 when he picks his friend up, and it reads 74,592 when he drops his friend off at his house. Ryosuke's car gets 28 miles per gallon and the price of one gallon of gas is . What
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Guest
Jan 4, 2021
+2
886
4
+79
PLZ HELP ASAP
A standard six-sided die was rolled 50 times, and the outcomes are shown in the table. What is the average of the 50 outcomes? Express your answer as a decimal to the nearest hundredth.
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Leafie
Jan 4, 2021
0
465
1
+86
I request Help With This
Let m⋆n=m/n+n/m for all integers m, n≠0 If m^2+n^2=8 and mn=4, what is the value of m⋆n?
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JoLink
Jan 4, 2021
0
379
1
help with area
From the figure below, ABC and DEF are right triangles, and AF and DC are the their respective altitudes. Point G is the intersection of AC and DF and GH is drawn from it such that it is perpendicular to BC. If AF = 6 and GH = 4 and FC
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Guest
Jan 4, 2021
0
469
2
geometry question
Two parallel chords in a circle have lengths 6 and 8. The distance between them is 1. Find the diameter of the circle.
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Guest
Jan 4, 2021
0
539
2
+86
I Would Like Help With This... Math Problem
Let f(x)=2x-3 For what value of x is (f(f(x)) = x?
Melody
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JoLink
Jan 4, 2021
0
429
1
algebra
Given
- m is the greater root of the equation (1999x)^2-1998x2000x-1=0
- n is the lesser root of the equation x^2+1999x-2000=0,
please determine the value of m-n!
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Guest
Jan 4, 2021
Jan 3, 2021
0
492
1
help geo
Regions I, II and III are bounded by squares. The perimeter of region I is 12 units and the perimeter of region II is 28 units. What is the ratio of the area of region I to the area of region III? Express your answer as a common fraction.
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Guest
Jan 3, 2021
0
518
3
number theory
The product of two positive integers plus their sum is 95. The integers are not relatively prime, and each is less than 20. What is the sum of the two integers
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Guest
Jan 3, 2021
0
394
1
polynomial division
Find the remainder when x^4 + 1 is divided by x^2 - 3x + 6.
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Guest
Jan 3, 2021
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