All Questions ⁺⁰237748 Questions

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481

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

395

1

help plz

What is 2021^2021 mod 31?

Guest Jan 4, 2021

0

543

1

algebra

If x + y = 3 and x + y = 5, then find x^2 + y^2.

Guest Jan 4, 2021

0

587

2

i need help with my math question

w/9=-180 what is w

Guest Jan 4, 2021

0

825

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.

Guest Jan 4, 2021

0

414

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 $f(x)$.

Guest Jan 4, 2021

0

575

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, read more ..

Guest Jan 4, 2021

0

514

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.

Guest Jan 4, 2021

0

567

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 read more ..

Guest Jan 4, 2021

0

672

2

12 – x = –3x + 36

12 – x = –3x + 36
x = ?

Guest Jan 4, 2021

0

623

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 $P(1)$?

Guest Jan 4, 2021

0

524

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 read more ..

Guest Jan 4, 2021

0

527

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

527

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

538

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.

Guest Jan 4, 2021

0

904

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 read more ..

Guest Jan 4, 2021

+2

953

4

+82

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

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576

1

+87

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?

JoLink Jan 4, 2021

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489

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 read more ..

Guest Jan 4, 2021

0

571

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.

Guest Jan 4, 2021

0

625

2

+87

I Would Like Help With This... Math Problem

Let f(x)=2x-3 For what value of x is (f(f(x)) = x?

JoLink Jan 4, 2021

0

533

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! read more ..

Guest Jan 4, 2021

Jan 3, 2021

0

593

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

610

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

Guest Jan 3, 2021

0

505

1

polynomial division

Find the remainder when x^4 + 1 is divided by x^2 - 3x + 6.

Guest Jan 3, 2021

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