All Questions ⁺⁰238450 Questions

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Probability Help

A member of the junior varsity swim team will be elected as President. Each member is equally likely to be elected. The probability that a sophomore is elected is times the probability that a freshman is elected. Everyone on the junior varsity read more ..

Guest Feb 14, 2023

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291

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Functions

The functions f and h are defined as follows:
f(x) = (x + 5)/(x - 7) and h(x) = (x + 5)(x - 7).

Explain why the functions f and h are not the same function. read more ..

Guest Feb 14, 2023

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280

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Stuck on a tough question. Help would be greatly appreciated!

Find the number of positive integers that satisfy both the following conditions:
Each digit is a 1 or a 2
The sum of the digits is 10

Guest Feb 14, 2023

Feb 13, 2023

-1

228

6

GUYS!!! I THINK I FOUND NEW FORMULA!!!

GUYS!!! I THINK I FOUND NEW FORMULA!!!
Just try to multiply numbers, that have one common "middle" number between them, got it? For example, multiply 5 by 3, (they have one middle number, which is 4), the answer is 15. Can I say that the middle read more ..

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Guest Feb 13, 2023

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293

2

Plz help

How many multiples of 9^3 are greater than 9^4 and less than 9^5?

Guest Feb 13, 2023

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304

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Acute triangle

costheta=8/10. What is the value of csctheta?

Guest Feb 13, 2023

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218

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Problem

Let f(x)=log x. What is the average rate of change of f(x) from 4 to 6? Round to the nearest hundredth.

Guest Feb 13, 2023

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216

0

Counting

How to solve this

Catherine rolls a 6-sided die five times, and the product of her roll is . How many different sequences of rolls could there have been? (The order of the rolls matters.)

Guest Feb 13, 2023

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289

4

HELP!

what are the proper factors of 64209??
PLZ PLZ PLZ

Guest Feb 13, 2023

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233

3

Counting

I have to count these for class

There are 18 padded chairs around a circular table, and the chairs are numbered from 1 through 18 . How many ways can five people take their seats, so that no two people are adjacent? read more ..

Guest Feb 13, 2023

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241

1

factors of ten.

factors of ten.

Guest Feb 13, 2023

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240

3

Given that the domain is all real numbers, what is the limit of the range for the function ƒ(x) = 42x - 100?

Given that the domain is all real numbers, what is the limit of the range for the function ƒ(x) = 42x - 100?

Guest Feb 13, 2023

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213

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Geometry

Need help with a geometry proof

Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.

Guest Feb 13, 2023

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258

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Please help me

In triangle $PQR,$ $M$ is the midpoint of $\overline{PQ}.$ Let $X$ be the point on $\overline{QR}$ such that $\overline{PX}$ bisects $\angle QPR,$ and let the perpendicular bisector of $\overline{PQ}$ intersect $\overline{PX}$ at $Y.$ If $PQ = 36,$ $PR read more ..

Guest Feb 13, 2023

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226

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Interest Rates

I don't have the formula

Chuck deposits $2000 into a bank account that compounds annually at an interest rate of . Assuming there are no other transactions, what will the balance be after years, in dollars?
read more ..

Guest Feb 13, 2023

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213

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Counting

Plz help with counting

In a regular decagon, the sides are to be colored with five different colors, so that sides are diametrically opposite have the same color. (Not all five colors need to be used.) One possible coloring read more ..

Guest Feb 13, 2023

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227

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3d geometry

In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, OB = 1, OC = 1. Show that the read more ..

Guest Feb 13, 2023

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205

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Need help plz

When two standard 6-sided dice are rolled, there are 36 possible outcomes for the sum of the two rolls: one sum of 2, two sums of 3, and so on, up to one sum of 12.

Find all possible ways of numbering two 6-sided dice read more ..

Guest Feb 13, 2023

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256

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help

-26+13x+2>2-13x

Guest Feb 13, 2023

-1

191

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what is the square root of 100

'what is the square root of 100

Guest Feb 13, 2023

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