Mathematics

How many complex roots does this problem have

x^4+2x^3-9x^2-2x+8 And can you also tell me how you got the answer. Thanks for you help!-None. The roots are -4, -1, 1, 2 The divisors of 8 are -1, 1, -2, 2, -4, 4.Try them to see if any are roots

Math geniuses only part 2!!!

write a general term to find the number of flowers in the nth row when the first row has 42 flowers, 2nd has 40 flowers the 3rd has 38 flowers..etc.. Additional Details and using that general term how

Math geniuses part 3

write a general term to find the number of flowers in the nth row when the first row has 42 flowers, 2nd has 40 flowers the 3rd has 38 flowers..etc..i need a general term to determine the total number

Graph the system of linear inequalites? You explain the steps not the real answer :)

x>or equal to 0 y y>-x-graph the linear equation x = 0 with a solid line (number plane) or a solid dot (number line) because x >/= 0 (it can equal zero) graph the linear equations y = x and y = -x wi

Math word problem please help

How long will it take a mile long train, going 20 miles per hour, to get COMPLETELY through a 2 mile long tunnel? I am getting 9 minutes to get completely through the tunnel-In total it travels 3 mile

What's the derivative of (2^x)*ln2

d/dx ((2^x) ln(2)) = ln(2) * d/dx (2^x) = ln(2) * 2^x ln(2) = (ln(2))² 2^x Mαthmφm

Rings! Let I (not equal to R) be an ideal in a commutative ring R with identity.

Prove that R/I is an integral domain if and only if whenever ab is in I, either a is in I or b is in I. Thanks!!!!!-Supose that R/I is an integral domain, and ab is in I for some a,b in I. ==> ab+I =

What comes after 70 in the series 6, 13, 26, 45, 70, ..

6, 13, 26, 45, 70, .. a(n) = 3n^2 - 2n + 5 a(6) = 108 - 12 + 5 = 101-6,,,,,,,,13,,,,,,,26,,,,,,,,45,,,,,,,70,… ------> (1) ,,,,,7,,,,,,,,,13,,,,,,,19,,,,,,,,25,,,…-------> (2) ,,,,,,,,,,6,,,,,,,,,,6,

Math help i need to factor the symmetric quartic equation for x. x is a complex number. could u please help me

i need to factor the symmetric quartic equation for x. x is a complex number. could u please help me? x^4-3x^3-2x^2-3x+1=0-Hello, f(x) = x⁴ - 3x³ - 2x² - 3x + 1 If x=0, f(0) = 0 - 0 - 0 - 0 + 1 = 1

Writing system of equation with a solution of (5,2)

Ineed to Write a system of EQUATIONS that has a solution of (5,2) , BUT it MUST be NON-LINEAR. and then solve the system algebraically to verify that the solution is (5,2)-Hello, { x = y + 3 { y = √(

Algebra sigma notation help

evaluate:35Σ5n-3k=2-evaluate:35 Σ 5n-3 = 5*(34/2)(2 + 35) -- 34*3 = 3043 Answerk=2

Need help figuring out this algebra

Can anyone tell me how you get from step A to B? A)(5/3)^k+(5/3)^k-1 B)((5/3)^k-1) x ((5/3)+1) I just dont understand what steps to take to get from A to B.It goes from addition to multiplication, th

Probability of event A and not B?

This is for my statistics class P(A) is .7, P(B) is .25, P(A and B) is .05 I need to find P(A not B) and as far as I know, it should be 0.5/.7 and that is .071 and my book says the answer is 0.65. H

Statistics Standard Deviation Help

According to a survey, only 20% of customers who visited the web site of a major retail store made a purchase. Random samples of size 100 are selected. a. What is the standard deviation of all the sa

Math geniuses only!!!!

write a general term to find the number of flowers in the nth row when the first row has 42 flowers, 2nd has 40 flowers the 3rd has 38 flowers..etc..-assuming n= what row you are in.number of flowers