All Questions ⁺⁰237665 Questions

0

1126

5

Height of a football

If a football is kicked and it is in the air for 9 seconds, how high does it go?

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Guest Jul 29, 2018

0

888

2

+4

Compare

A = 1/2(332-1)
B = 322-1
Which one is smaller?

Nostalgica Jul 29, 2018

0

828

3

pls help (have idea but not sure. plz give answer)

Three cards are chosen at random from a standard 52-card deck. What is the probability that they are not all the same color?

So what I'm thinking is that the first card doesn't matter and there is 1/2 and 1/2 for the read more ..

Guest Jul 29, 2018

0

1278

2

please help

Two distinct integers, x and y, are randomly chosen from the set {1,2,3,4,5,6,7,8,9,10}. What is the probability that xy-x-y is even?

Guest Jul 29, 2018

Jul 28, 2018

0

680

1

+279

Given {a_n}, a_1=1 a_1+a_2+...+a_n=n^2*a_n (n>=1), please determine the general formula of a_n. (Hint: Use the induction formula to

Given {a_n}, a_1=1 a_1+a_2+...+a_n=n^2*a_n (n>=1), please determine the general formula of a_n. (Hint: Use the induction formula to determine your a_n).

Thanks so much in advance!

yasbib555 Jul 28, 2018

0

678

1

+279

Please help with this general formula/sum of sequence question

Given , calculate 's value.

yasbib555 Jul 28, 2018

+1

1558

3

number theory

Let A=111111 and B=142857. Find a positive integer N with six or fewer digits such that N is the multiplicative inverse of AB modulo 1,000,000.

Guest Jul 28, 2018

-1

839

1

+1246

Not urgent questions

Jamie and Billy each think of a polynomial. Each of their polynomials is monic, has degree 3, and has the same positive constant term and the same coefficient of $x$. The product of their polynomials is \[\]What is the constant term of Jamie's polynomial? read more ..

Lightning Jul 28, 2018

-1

622

1

+1246

Basics

If $f(x)$ and $g(x)$ are polynomials such that $f(x) + g(x) = -2 + x,$ then what is $g(x)$ if $f(x) = x^3 - 2x - 2$?

Lightning Jul 28, 2018

-3

1701

1

+1246

Couple of Questions

1. Let $$ and $$. What is the coefficient of $x^3$ in the sum $f(x) + g(x)$?

2. Let $f(x) = x^4-3x^2 + 2$ and $g(x) = 2x^4 - 6x^2 + 2x -1$. Let $a$ be a constant. What is the largest possible degree of $f(x) + a\cdot g(x)$? read more ..

Lightning Jul 28, 2018

0

560

1

Help with binomials

1. Suppose $f$ and $g$ are polynomials, and that $h(x)=f(g(x))+g(x)$. Find the degree of $g(x)$ given that the degree of $h(x)$ is $6$ and the degree of $f(x)$ is $2$.
2.Consider the polynomials \[f(x)=1-12x+3x^2-4x^3+5x^4\] and \[g(x)=3-2x-6x^3+9x^4.\] read more ..

Guest Jul 28, 2018

0

712

2

Permutations...

If the permutations of the first 5 letters, a, b, c, d, e, are arranged in alphabetical order from the beginning to the end, then what is the alphabetical order of the 77th term? How about the 100th term?
Thank you for any help.

Guest Jul 28, 2018

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