Mathematics

How would you calculate Q1,Q2and Q3 in a situation like this ,.1,5,8

When youhave LOTS ofdata,youjustcount infromboth ends1/4 of theway,and 1/2wayfor theQ2,and 1/4of the wayback ,forQ3...but there isanother trick:Ifyouhave allthedataarranged inorder,then :therewillbeam

How do you solve this inequalities

1# 2x-3>2(x-5) 2# 7x+6≤7(x-4)-1# 2x-3>2(x-5) 2x - 3 > 2x - 10 0 > -7 This is true for all x. 2# 7x+6≤7(x-4) 7x + 6 ≤ 7x - 28 0x ≤ -34 No solution-2x-3>2(x+5) 2x-3>2x+10 0>13 7x+6≤7(x-4) 7x+6≤7x

Algebra II help please!

Solve the following system of equations. x + 3y + 2z = –16 2x – y + 2z = –15 2x – 2y – z = 1 please help me :(-x + 3y + 2z = –16, multiply by - 2 2x – y + 2z = –15 - 2x - 6y - 4z = 32 + 2x – y + 2z =

What is 1/(2)(y) following the order of operations

What is the appropriate way to write 1/(2)(y) using the order of operations. I understand 1/2y = y/2. I always thought 1/(2)(y) = y/2, however, someone else has told me otherwise claiming that since

5/2 = 6/(x+4)² solve using square root principle

(Rationalize denominator in the answer) Solve using the square root principle... I cant get this one! Thanks The answer is x=-20 +/- 2√15/5-5 / 2 = 6 / (x + 4)^2 cross multiply 5(x + 4)^2 = 12 (x +

Verify the following identity

(cos2x+2sin(^2)x)/(cosx)=secx-cos2x=cos^2x-sin^2x numerator cos^2x-sin^2x+2(1-cos^2x) cos^2x-sin^2x+2-2cos^2x -cos^2x-sin^2x+2 -1+2=1 denominator: cosx numerator/deonominator 1/cosx=secx.

I need precal assistance

http://answers.yahoo.com/question/index;_ylt=AtWDlvWuYakv8az_6pKtfsEM_dw4;_ylv=3?qid=20110818165608AAWkxis I already asked this, but i NEED an answer soon, thanks for any help-factor by grouping...

Can you solve this equation

(e^(sqrtx)-1)/8 = 1/2-i guess:e^(sqrtx)-1 = 4e^(sqrtx) = 5take ln for both sides ln( e^(sqrtx) ) = ln5 (sqrtx)* ln e = ln5 (sqrtx) = ln5 square both sides x = 2ln5

Can someone please help me with my factoring problem.

Im stuck and dont think I know how to solve this one. Can you please explain how to do it. 9x^2+7x-56-9x^2 + 7x - 56 = 0 cannot be factored, so you need the quadratic formula to solve it: x = (-a ±

How heavy is.............................

an envelope with 7 pieces of standard paper in it. In ounces please, Im mailing a letter.-On average, each sheet weights 0.175 oz. 7 sheets plus the envelope should weight about 1.4 oz. If you want m

10 points to whoever can help me out with this geometry angles!

In the puzzle below… linesandare parallel. linesandare parallel. lineis perpendicular to line . Find the measures of angles 1–15. http://i55.tinypic.com/1zcmmg3.gif-since lines c//d, a is transversa

PLEASE HELP WITH THIS MATH PROBLEM!!

I have to find the slope and y-intercept, AND SHOW MY WORK, for the equation -15 - x = -5y. Can you help? Its not like Im trying to cheat, I really dont get it! Thanks!--15-x=-5y -5y=-15-x divide by -

How to prove sin pi/6 = 1/2

Im currently using Tom Apostols Calculus. One question involves proving sin pi/6 = 1/2 as well as the cos pi/6. The hint stated that I could use the previous exercise to help me which is showing the v

Evaluate this expression with exact answer (no decimals)

arcsin(cos11pi/6)-cos11pi/6 = Sqrt3/2 Arcsine of that = pi/3 Jen--arcSin(1/6)assuming radians, right? I just pasted your formula into microsoft math, a free download.-cos(11pi/6) = cos(330) = sqrt(

Math help! Thanks! So much guys!

1) the product of 6 and a number y 2) 50 divided by a number h 3) the sum of 15 and a number x 4) 3 less than the square of a number p 5) 5 more than 3 times a number w Thanks!! I am just checking my