All Questions ⁺⁰230590 Questions

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207

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+166

Circles

Two circles with radius 1 and 2 are externally tangent at point P. Suppose the distance from point P to the common external tangent line of the two circles is m/n, where m and n are relatively prime positive integers. Find m+n.

RainbowSquirrel53 Aug 15, 2022

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216

1

How many 11 -digit positive integers can be written using only the digits 1,2 and 3 and have exactly five 1’s and exactly two 2's as digits?

How many 11 -digit positive integers can be written using only the digits 1,2 and 3 and have exactly five 1’s and exactly two 2's as digits?

Guest Aug 15, 2022

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185

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Please Help. Any kind of help is appreciated.

Please Help. Any kind of help is appreciated.

Guest Aug 15, 2022

0

217

1

+275

Combinations

The Combinatorial Creamery features 10 flavors of ice cream. Their waffle cone special has four scoops of different flavors stacked on top of each other on a waffle cone. You can decide the order in which the scoops are stacked. How many different read more ..

Jasonkiln Aug 15, 2022

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149

0

I need help understanding this, so I can finish the rest. Help is appreciated

Hello,

Can someone please take a look at this question? I really need help on this:
read more ..

Guest Aug 15, 2022

+2

242

2

+275

Combinations

A set of 25 square blocks is arranged into a 5x5 square. How many different combinations of 3 blocks can be selected from that set so that no two are in the same row or column?
I don't understand the question fully and have no idea on how to approach read more ..

Jasonkiln Aug 15, 2022

0

219

2

+275

Permutation

How many positive integers greater than 3000000 can be formed by arranging the seven digits 1,2,2,3,6,6,6 in some order?
A number big as 3mil would be very hard to list out

Jasonkiln Aug 15, 2022

0

217

1

+275

Combinations

Aadya is building towers by stacking identically shaped cubes of different colors on top of each other. She has 1 red cube, 2 yellow cubes, 3 green cubes, and 4 blue cubes. How many different 10 -cube-high towers can Aadya build using these 10 cubes so read more ..

Jasonkiln Aug 15, 2022

Aug 14, 2022

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355

7

+275

Permutations

In how many ways can the letters of the word ACCURACY be rearranged so that no two C's appear as consecutive letters in the rearrangement?
The word accuracy can be arranged 3360 times

●●●●●●●

Jasonkiln Aug 14, 2022

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225

3

+275

Combinations

A math teacher has 4 students in their class. To keep students engaged during class, they like to call on students to answer questions. During one particular class, they call on students 12 times, making sure to call on each student exactly 3 read more ..

Jasonkiln Aug 14, 2022

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222

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Help

Matt and Bill shared a painting job in a ratio of 5:8. Bill worked 9 h more than Matt. How many hours did Bill work? Matt?

Guest Aug 14, 2022

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169

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HELPPPP!

Let r and s be the roots of 3x^2 + 4x - 12 = 0. Find r^2 + s^2.

Guest Aug 14, 2022

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149

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Functions

Let f(x)=3x+2 and g(x)=ax+b, for some constants a and b. If ab=90 and f(g(x))=g(f(x)) for x=0,1,2...9, find all possible values of a, separated by commas

Guest Aug 14, 2022

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180

1

please help with geometry

The midpoints of the sides of a triangle with area $T$ are joined to form a triangle with area $M$. What is the ratio of $M$ to $T$? Express your answer as a common fraction.

Guest Aug 14, 2022

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200

1

Help!!

Jeri finds a pile of money with at least . If she puts of the pile in her left pocket, gives away of the rest of the pile, and then puts the rest in her right pocket, she'll have more money than if she instead gave away of read more ..

Guest Aug 14, 2022

+1

243

2

+66

does anyone remember me

hi remember me people me like pandas

qjin27 Aug 14, 2022

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165

1

one question (HELPPPP)

Enter the letters of the points that are below the graph of $y = -\frac 1 3 x.$

Guest Aug 14, 2022

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192

0

+166

Circles

Points P,Q,R and S lie on a circle and angle SRP = 60. If RS = 4, RQ = 6, SP = x and PQ = y, then a possible solution for (x,y) is A) (4,2) B) (3,3) C) (4,4) D) (4,3) E) (5,2).

RainbowSquirrel53 Aug 14, 2022

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174

1

helllp pls

Two circles with radius 1 and 2 are externally tangent at point P. Suppose the distance from point P to the common external tangent line of the two circles is m/n, where m and n are relatively prime positive integers. Find m+n.

Guest Aug 14, 2022

0

162

1

Help

There are three circular pieces of paper on the table, two with radius 5 cm and one with radius 8 cm. any two pieces of paper touches exactly at one point. if we want to cover these three pieces of paper completely by another large circular piece of paper read more ..

Guest Aug 14, 2022

0

219

1

+166

circles

The circle with BC as its diameter intersects the sides AB and AC of ABC at D and E respectively. if BC=30,BD=18,AD=7, find the length of CE.

RainbowSquirrel53 Aug 14, 2022

0

178

0

an archeologist found the remains of an ancient wheel, which she then placed on a grid. if an arc of the wheel passes through a(7,0), b(3,4)

an archeologist found the remains of an ancient wheel, which she then placed on a grid. if an arc of the wheel passes through a(7,0), b(3,4) and c(7,0), locate the center of the wheel, and the standard equation of the circle defining its boundary read more ..

Guest Aug 14, 2022

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