Monday
February 27, 2017

Posts by Z

Total # Posts: 126

math
thanks!
February 20, 2017

math
Write the inequality that represents the solution set for ?15/9 y <11/13 .
February 20, 2017

math
thank you!
February 20, 2017

math
So far this year Nick has scored a 75, 81, 88 and 92 on four of his math tests. Each test is worth a maximum of 100 points. To earn a B this year, Nick needs a test average of 80 or better. Write the inequality that represents this scenario. Let t equal Nick's grade on the...
February 20, 2017

math
ok i think i wrote it wrong the y is a seperate variable its not suppose to be with the 9
February 19, 2017

math
i put that in and it said it was wrong
February 19, 2017

math
Write the inequality that represents the solution set for ?15/9y < 11/13 . Please help thanks
February 19, 2017

Math
30x
December 21, 2016

Math
expand brackets or simplify for both sides then combine values for x (or y) and the integers. if you end up with 0=0 answer is C if you end up with 0=N answer is B otherwise answer is A. eg qu 2 gives 3y-9=3y-9 which gives 0=0 and is obviously true for any y so answer here ...
December 21, 2016

Physics
Two point sources emit sound waves of 1 m wavelength. The sources are pointed at each other. The sources, 2 m apart, emit waves which are in phase with each other at the instant of emission. a) Where, along the line between the sources are the waves out of phase with each ...
December 11, 2016

Math
6/5 = 51/2 =122.4 sec
November 13, 2016

Math
Your Welcome!
November 10, 2016

Math
8 8*2 = 16, square root of 16 is 4. 1/2 of 8 is also 4, therefore the answer is 8.
November 10, 2016

math
Let number of children's tickets be ----X Let number of adults tickets be 450-X 2x+5(450-x)=1800 X= 183( round it up to nearest whole number) 450-183=267 James sold 267 adults ticket.
November 10, 2016

PLEASE CHECK MATH TY!
They are Correct.
November 10, 2016

Math
Yes
November 9, 2016

Math
When you divide by a fraction don't forget to flip it
November 9, 2016

Math
3*7.8 + 5*9.2 =?
November 9, 2016

Math hard
What are you trying to solve for?
November 9, 2016

Algebra 2
Lol
November 9, 2016

Algebra 2
Write it out helps. Let the 3 numbers be A,B,C B = A + C + 2 2C = A + C 42 = A + B + C
November 9, 2016

** Math - PLEASE help!!
Your Welcome!
November 9, 2016

** Math - PLEASE help!!
Set each one equal to zero and solve for X -2x = 0 x^-16 = 0 x-3 = 0
November 9, 2016

math
It helps if you draw it out.Anyways Let H be the height of the pole. Tan35=H/21.3 Solve for H
November 9, 2016

math
Is the number of worker the only variables they give you?
November 9, 2016

math
Yes. And it's because square root of X can be a negative number which would make it an imaginary number.
November 9, 2016

Pre Algebra
Arnold multiplied instead of dividing by 3
October 31, 2016

Math: Help MEEE!!!!!!
n ≥ –16 when you divide by a negative you have to flip the sign
October 31, 2016

Algebra2
(c) obviously the vertex form (d) standard form, so you have the needed a,b,c coefficients.
October 31, 2016

math
P = Po(1+r)^n. Po = $600. r = 4%/100% = 0.04 = APR expressed as a decimal. n = 1Comp./yr * 6yrs = 6 Compounding periods. Plug the above values in the given Eq and get: P = $759.19
October 31, 2016

Math
15/25=0.6 Each ticket cost $0.6 if you buy a roll of tickets.
October 31, 2016

math
Find the values of the trigonometric functions of t from the given information. tan(t) =1/9 terminal point of t is in Quadrant III sin(t)= cos(t)= csc(t)= sec(t)= cot(t)=
October 29, 2016

Physics
ÔÚ
October 11, 2016

Math
This task is about choosing a new washing machine. Your washing machine is broken. You need a new one. The new washing machine must hold at least as much as the old one and spin at least as fast as the old one. You used your old washing machine three times a week. Details of ...
August 16, 2016

Math
Thanks for the response Steve, but this doesn't quite clarify things for me. The step I keep getting lost on is this one: "x^2+y^2-2x-y = 0 2y+x-2 = 0" How did you get to this point? What happened to the 2yi + xi?
June 20, 2016

Math
Hey! So, I've been working on this problem for awhile but I'm currently a bit dumbfounded on how to solve it. I think this question has been answered before but I still don't quite understand how it works or how to explain it. The problem is as follows: |z|^2 -2(...
June 20, 2016

algebra
One adult ticket and seven children's tickets cost $62. Two adult tickets and eight children's tickets cost $79. How much does one adult ticket cost? How much does one children's ticket cost?
March 31, 2016

Social Studies
A
December 4, 2015

Comm Tech
1 B 2 D 3 B 4 C 5 A I GOT A 100
November 9, 2015

Algebra
the independent variable is the one you change and is usually on the right side. the dependent is the one that changes because of the function and is usually by itself on the left side. but not always! if you have x and y, x is most likely the independent and y is the ...
October 5, 2015

Math (Trig)
A triangle ABC has a trisected angle A. The angle trisectors divide side a (opposite angle A) into three segments which are BD, DE, and DC. The lengths are 2, 3, and 6, respectively. What are the lengths of the other sides?
October 5, 2015

Math
sometimes its easier if you just look at the decimal part as a number. example: 480, 4_1, 463. the missing digit cant be 8 or more because 481 isnt less than 480, and and cant be 6 or less because 460 isnt greater 463. so the digit is seven
October 5, 2015

Chemistry
Suppose water contained some harmful volatile substance. How could you easily remove the volatile substance in a laboratory?
September 23, 2015

Chem
What is the concentration of a solution made by diluting 85 mL of 6.0 mg/L free chlorine to a final volume of 750 mL?
September 19, 2015

Science
WHAT IS THE ANSWER????????
September 9, 2015

Probability & Statistics
To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed. The FDA tests on this cigarette yielded mean nicotine content ...
March 23, 2015

Grade 8
4!/9!
February 6, 2015

Maths
.124
January 12, 2015

Physics
A lunar lander in powered descent at 100 m above the surface of the moon slows down from a velocity of 20 m/s to 0.5 m/s at constant acceleration. Assume that the lander has a mass of 20,000 kg and that burning the fuel does not change the mass. Answer the following questions...
January 6, 2015

Business
Where can I find detailed info on all the lawsuits that Microsoft have encountered?
December 5, 2014

Chemistry
For a particular isomer of C8H18, the following reaction produces 5099.5 kJ of heat per mole of C8H18(g) consumed, under standard conditions. What is the standard enthalpy of formation of this isomer of C8H18(g)?
November 3, 2014

English
To indicate a thought (For example: I'm hungry), do you put quotation marks around the thought as you would do if the thought were spoken out loud, or do you put the thought in italics?
August 28, 2014

statistics
yes
April 20, 2014

science(check answers)
1.B 2.B 3.A 4.D These are the right answers.
March 11, 2014

math
34
February 11, 2014

Science
what is the definition of nutrient?
December 6, 2013

Chemistry
do you have to convert the 9grams to liters in order to answer the first question for the protein amount? i
October 10, 2013

ecology
I have a Data Analysis Lab that has a graph attached to it. It talks about how temperature affects the growth rates of the two species'. It says that researchers studied the effect and they hypothesized that increasing temperature would increase the growth rate. However, ...
September 25, 2013

parellel
Lots of my friends think that Prince's music is old, but I think it's not only excellent or but also an innovation.
July 3, 2013

physics
A ball is thrown downwards from a roof at 24.0m/s. What is the velocity of the ball after 4s?
June 13, 2013

physics
two cars weighing 1500 kg are made to collide with a wall.the initial and final velocities are 15 m/s and 2.6 m/s.if the collision last for 0.15 seconds,then find impulsive force exerted on the car
June 6, 2013

math
. Which ordered pair could you remove from the relation {(–2, –1), (–1, 1), (–1, 0), (0, 1), (1, 0)} so that it becomes a function?
May 21, 2013

computer science
What does it mean when there is a high prior probability in terms of Baynesian statistics?
April 26, 2013

Science
Paper is abiotic!
April 2, 2013

chemistry
Calculate the pH of a 195 mL solution containing 7.50g of ethylamine (CH3CH2NH2) and 7.50g of ethylammonium bromide (CH3CH2NH3+ Br-). The Kb of ethylamine is 4.7 x 10-4
March 7, 2013

chemistry
how many grams of magnesium are required to react with 2.0 moles of hydrochloric acid?
February 2, 2013

calculus 2
yes
February 1, 2013

math
Minding their manors
January 24, 2013

Chemistry
titration is when you eat the water, hydration is when you drink the water. U are the welcome.
December 2, 2012

Chemistry
jislkm
December 2, 2012

Chemistry
By the way, The answer is D. :0)
November 30, 2012

Chemistry
It's that simple? Thank you. I made it harder than it was.
November 30, 2012

Chemistry
When solutions of KCl and Pb(NO3)2 are mixed, a precipitate forms. Which of the following is the balanced equation for the double replacement reaction that occurs? a. KCl(aq) + Pb(NO3)2 (aq) ¨ KNO3 (aq) + PbCl2 (s) b. KNO3 (aq) + PbCl2 (s) ¨ KCl(aq) + Pb(...
November 30, 2012

Math
when testing for a fever, what is the true positive rate for a thermometer that always reads 105 F? What is the false positive rate? **Note: the definition of fever is that the patients temperature exceeds 100 F**
October 14, 2012

Computer Science
when testing for a fever, what is the true positive rate for a thermometer that always reads 105 F? What is the false positive rate? **Note: the definition of fever is that the patients temperature exceeds 100 F**
October 14, 2012

adventist
The sum of two consecutive numbers is 37. What are they?
October 12, 2012

math
right answers 4.? 5. A 6. B
October 3, 2012

PHYICAL
What is equivalent between points a and b when R=3 R R ----\/\/\/----\/\/\/---- a /\/\/\-----b \/\/\/\/-----
July 9, 2012

PHYICAL
What is equivalent between points a and b when R=3 R R ----\/\/\//---\/\/\/\/----| | | | | | | a | | R | b ----| --/\/\/\/\--------- | | | R | |----------\/\/\/\/-------|
July 9, 2012

english
Hi, I Proofread for wording errors and grammar, but I need help to see if my grammar is proper now. I personally respect every religion, and I love reading holy books. Holy books inspire many people. Holy books taught me many morals and stories on our everyday life, which ...
June 29, 2012

chemistry
An unknown sample with a molecular mass of 180.0g is analyzed to yield 40% C, 6.7% H, and 53.3% O. What is the empirical formula and the molecular formula of this compound?
June 20, 2012

Related rates
hii... am in the solution with the V = (1/3)π (h^2/4)(h) still have h in 2/4?? isn't the derivative of r = h/2 is just 2/4??
May 14, 2012

Physics
zz
February 21, 2012

statistics
Find a z value to the right of the mean so that 74.5% of the distribution lies to the left of it.
November 29, 2011

English
I need the answerrr uhg I'm stuck
October 24, 2011

math
chicken butt
August 20, 2011

math
you are standing 15 feet from a statue the angle of the elevation from eye level to the top of the statue is 27 degrees, and the angle of depression to the base of the statue is 18 degrees. How tall is the statue? show work
May 17, 2011

Maths 7th grade
How do you factorise?
May 17, 2011

algebra
8^(x+5)=32^(x-9)
May 12, 2011

algebra
5|2x-5|=15
May 12, 2011

Calculus (pleas help!!!)
Consider the parameterization of the unit circle given by x = cos(ln(2t)), y = sin(ln(2t)) for t in (0,∞). De- scribe in words and sketch how the circle is traced out, and use this to answer the following questions. SOLUTION Let h(t) = ln(2t). Then h′(t) = 1 . The ...
April 15, 2011

Algebra II
((x-1)/3x+15))-((x+3)/(5x+25)) HOW TO SIMPLIFY THAT???
April 6, 2011

Algebra II
((x-1)/3x+15))-((x+3)/(5x+25)) HOW TO SIMPLIFY THAT???
April 6, 2011

Algebra II
((x-1)/3x+15))-((x+3)/(5x+25)) HOW TO SIMPLIFY THAT???
April 6, 2011

math
laura has a roll of ribbon there are 29 yards of ribbon on the roll what equation can laura use to find the number of inches of ribbon on the roll
March 9, 2011

Ap Chemistry
explain the difference in boiling points of acetone and 1 proponol. (proponol higher) also explain the difference in water solubility of chloroethane and acetone. (acetone is soluble but not chloroethane)
February 27, 2011

Math
Rupert flew 3/16 of the way around the world but George flew 4/9 as far as Rupert. How far around the world did George Fly?
January 27, 2011

english
Is my sentence punctuated correctly? Even though it is almost summer, we still have overcast skies and light rain.
January 23, 2011

Chemistry
n=5 to n=4
January 16, 2011

physics
2D
November 7, 2010

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