Mathematics

Math: Algebra 2 Help...

I dont understand how to work this math problem: The square root of 5/7 + The square root of 7/5 How do you solve this type of problem?-rt = square root rt5/rt7 + rt7/rt5 (rt7/rt7) (rt5/rt7) + (rt

Solve 4x^2 = 20x -24

Hello! Im doing some review for a math placement test tomorrow. I cant remember how to solve this sort of equation: Solve 4x^2 = 20x -24 I just know that it will have two answers. Please try to show

How to solve y²=x³+1 , y³+9 =4√81

y³+9 =4√81 y³+9 =4*9 y³ =3*9 y³ =3³ y=3 y²=x³+1 9=x³+1 8=x³ 2³=x³ => x=2

What is the statistical probability of flipping a coin and having it land on heads five consecutive times

1/2 * 1/2 * 1/2 * 1/2 * 1/2 = 1/32 chance-Assuming this is a fair coin, so P{heads will come out of a single coin flip} = 0.5 So, probability that you will get heads five consecutive times is = P(head

Need help with exponential inequalities please guys

Guys please I need a step by step approach with simple clear explanations on how to solve these two problems. Here is the link below (please if link is unclickable, copy to address bar): http://desm

How to solve... (math/physics question) #3

Suppose that cos(theta) + 1.2 sin(theta) = 0.What is a possible value for theta?-cos(theta) + 1.2 sin(theta) = 0. What is a possible value for theta? ---> (a) 1.2 sin(theta) = - cos(theta) (b) tan(t

Need help on Algebra problem

.4x + 16.1 = x - 2.98 Can someone please show me how to work this and what the correct answer is?Thank you!-4x +16.1=x-2.98 -x-x3x+16.1=-2.98-16.1-16.13x=-19.083x/3=19.08/3x=-6.36-subtract 4x over to

Completing the square to find the turning point

Y= -9/8 (x^2 - 12x + 20) Help please....-Reena, the question says to complete the square to find the turning point; you did neither of those things. y = -9/8 (x^2 - 12x + 20)= -9/8 (x^2 - 12x + 36 -

Edit my Math English

English is not my mother tongue. Please edit my solutions so that it sounds English style. Problem: Pump A can fill a tank of water in 5 hours. Pump B can fill the same tank in 8 hours. How long does

Im having arithmetic question problem

the question is - the sum of the first 4 terms of an arithmetic series is -8 and the sum of the first 5 terms is 85. determine the first erm and the common difference. i honestly have no idea what

Revolve given equation about the horizontal line y = 4

The function 4x - 2x^2 I did this problem myself by doing: pi * integral from 0 to 2 of ( 4 - (4x - 2x^2)^2)dx Is this method correct?I get 56 pi / 15 as a final answer.In one of my classes, the te

If p is odd prime (!=2), how to proof that x^2 == 1 (mod p) has only 2 solutions

What theorems should I look into if not... Thank you.-Since x^2 = 1 (mod p), we have p | (x^2 - 1). ==> p | (x - 1)(x + 1) ==> p | (x + 1) or p | (x - 1), since p is prime ==> x = -1 (mod p) or x = 1

Math Help please?????????

Describe a method of finding the midpoint of a segment that has one endpoint at (0,0). Give an example using your method, and explain why your method works.-use distance formula since x=0, y=0 M=( x1/

How do I find the period of a sinusoidal wave

I have a graph and the first crest is at pi/6 and the second crest is 7pi/6 (one whole wave from pi/6 to 7pi/6). Can someone explain how I find the period? Is the period 8pi/6?-The period is 7π/6 - π/

Help with math problems please?!!!

a) If (1-2k)x^2 + 8kx - (2+8k) = 0 has equal roots, find the value of k. x^2 - 2kx^2 + 8kx - 2 - 8k = 0 b) If x^2 + kx + 2x + 2k = 0 has real and equal roots, find the value of k. c) Find the value