Liv
Most popular questions and responses by Liv
Nature Science
If a typhoon hits an island without any person, is that a disaster?
asked on December 6, 2016 
Trigonometry
Evaluate arctan(cot10Pi/9) sec(arccos(1/6) csc(arcsec(5/3) sin(2 arccos(sqrt5/5)
asked on November 27, 2016 
Math
You want to conduct a survey to find out what sport the students at your school prefer to play. a) You interview 20 boys playing football at lunch. Is this a random sample? explain b) The survey question you ask is, ''What is your favorite sport to play?''
asked on April 29, 2014 
Math
The formula for finding the perimeter of an equilateral triangle is P = 3s. How can you transform the formula so that it can be used to determine the length of one side of the triangle when given the perimeter?
asked on March 15, 2016 
math
identify the choice that best completes the statement or answers the question. For questions 13, what is the solution of the systems? Use subsitution. 1. y = x + 6 y = 2x
asked on May 7, 2018 
General chemistry
1) How high above the inner blue cone of the burner flame should the crucible be when the Mg is heated? 2) What should you do if you see white smoke rising from the crucible in the early stages of heating the Mg? 3) How will you know when the reaction
asked on February 12, 2018 
General chemistry
Ammonia fumes can permanently fog soft contact lenses. Briefly explain why students wearing soft contact lenses should be particularly careful when doing this experiment.
asked on February 12, 2018 
Organic Chem question
What would be the product when 3bromoprop1ene and cyclohexane1,3dione react with excess NaOH?
asked on April 19, 2017 
chemistry
What is the condensed formula for 6chloro2methyl3heptyne?
asked on November 8, 2017 
physics
a car starts from rest and accelerates uniformly to reach a speed of 21 m/s in 7.0s. What was the speed of the object after 2.0 seconds?
asked on October 11, 2016 
Precalculus
prove the identity sin2xsin2y/sin2x+sin2y=tan(xy)/tan(x+y)
asked on November 19, 2016 
Math
Insert grouping symbols to make the following sentence true: 160 = 8 * 16 + 12  4 / 2
asked on September 15, 2015 
Calculus
Suppose that the price p, in thousand pesos, and the number of sales x(in hundreds) of a certain item can be modeled by the equation 5p+4x+px=100. Suppose also that the price is increasing at the rate of $200 per year. How fast is the quantity changing at
asked on March 1, 2017 
Trigonometry
Show that the following are not trigonometric identities 1.tan 2x = 2tan x 2. sec x= sqr rt 1+tan^2 x 3. sin(x+y)=sin x +sin y
asked on October 1, 2016 
math with application
If 12 % of a radioactive substance decays in 7 hours, what is the halflife of the substance? Carry out all calculations exactly, then round the final answer to three decimal places. The half life is what hours?
asked on October 16, 2015 
Counseling
Hansen's 6 tasks are all focused on a holistic view of career development.
asked on June 9, 2019 
General Chemistry
The formula of a compound of lead (Pb) and sulfur (S) was determined using the method in this module. A sample of Pb was weighed into a crucible and covered with finely powdered S. The crucible was covered and heated to allow the Pb and S to react.
asked on February 12, 2018 
Trigonometry
Evaluate please: a.) arcsin(sin 13pi/16) b.) arccos(cos[pi/18]) c.) arcsin(sin pi/18 d.) arcsec(√2) e.) arctan(√3/3)
asked on November 26, 2016 
DerivativeOptimization Problems
You plan to enclosed part of a rectangular farmland with a fence. Since one side of it is bounded by a river, you only need to fence the other three sides. if you have enough budget to buy 600m of fencing material, what is the largest area you can enclose?
asked on February 22, 2017 
physics
A triangular plate with a nonuniform areal density has a mass M=0.700 kg. It is suspended by a pivot at P and can oscillate as indicated below. Its center of mass is a distance d=0.200 m from the pivot axis and its moment of inertia about an axis through
asked on December 4, 2011 
Calculus Reposted
A point is moving along the curve xy=12. When the point is at (4,3), the xcoordinate decreases at the rate of 2cm/sec. How fast is the ycoordinate changing at that point? dy/dx=y/x is my change rate so far, should i substitute the coordinates (x,y) to
asked on March 1, 2017 
Calculus
A point is moving along the curve xy=12. When the point is at (4,3), the xcoordinate decreases at the rate of 2cm/sec. How fast is the ycoordinate changing at that point?
asked on February 25, 2017 
Precalculus
Prove the following identities. 1. 1+cosx/1cosx = secx + 1/secx 1 2. (tanx + cotx)^2=sec^2x csc^2x 3. cos(x+y) cos(xy)= cos^2x  sin^2y
asked on November 18, 2016 
Geometry
A rectangular quilt's length is twice the length of a rectangular picture, and the quilt's width is three times the width of the same picture. The area of the picture is 2 square feet. What is the area of the quilt, in square feet?
asked on March 26, 2015 
Precalculus
prove sin(x+y)+sin(xy)/cos(x+y)+cos(xy)=tanx
asked on November 19, 2016 
Precalculus
Evaluate sin 7pi/12. Using sum, difference, and cofunction identities
asked on October 15, 2016 
Algebra
the phone company has two plans for cell phones. the first plan calls for a monthly fee of 35.00 with unlimited calling. The other plan is a monthly fee of 15.00, with a 0.50 fee for every minute over 100 used in a month. What is the greatest number of
asked on August 27, 2012 
Physics
A 20mm diameter rivet is used to fastened two 25mm thick plate If the shearing stress of rivet is 80MPa. What tensile force is applied to each plate to shear the rivet
asked on March 27, 2019 
2 problemsmath
1. find the relationship of x and y in the table. x: 2; 4; 6; 8; 10 y: 1.5; 2; 3; 4.5; 5 y = _______ x + ________ 2. find the relationship of x and y from a graph of a line that crosses the yaxis at y = 6 and that goes into the left 2 units and rises 3
asked on April 12, 2018 
Precalculus
Convert cartesian equation to polar form 1. x^2+y^2=4x 2. (x^2+y^2)^2=6(x^2y^2)
asked on December 4, 2016 
Precalculus
Evaluate sin16° cos29° + cos16° sin29°
asked on October 15, 2016 
Stats
Sally rolls a fair number cube 8 times and gets a 5 twice. What is the experimental probability that on her next roll, she will roll a 5? I know that experimental probability is f/n, so the number of trials is now 9, but is the number of times Sally roll a
asked on August 22, 2014 
Trigonometry
A weight hanging from the end of a spring is pulled 8 inches below its rest position. When released, the weight then exhibits simple harmonic motion, with period 1/2 second. Find an equation describing its motion
asked on October 1, 2016 
Trigonometry
how do i evaluate this? 1+tan 200(degrees) tan 80(degrees)/tan200(degrees)tan 80(degrees)
asked on October 15, 2016 
Science
Direction: Place a big mug, a plastic drinking glass and an empty glass bottle on the table with the big mug at the center, the drinking glass at the edge of the table, and the bottle anywhere on the table. With the force , shake the table and observe what
asked on November 28, 2016 
Physics
An Olympic long jumper is capable of jumping 8.44m. Assuming his horizontal speed is 5.644m/s as he leaves the ground, how high does he go?
asked on October 30, 2016 
Geometry
Point P lies in plane M. How many circles are there in plane M that have center P and a circumference of 6π inches? a) none b) one c) two d) four e) more than four
asked on July 7, 2010 
MATH  PLEASE HELP!!
The length of a rectangle is 3yd less than twice the width, and the area of the rectangle is 65ydsquare. Find the dimensions of the rectangle.
asked on November 9, 2016 
Biochem
1 ml of whole blood is collected and centrifuged to obtain a plasma sample. The volume of the plasma sample is 600 microlitres. A 1 in 4 dilution of the plasma is made and analysed using a cholesterol assay like the one you performed in the laboratory. 10
asked on September 30, 2012 
General chemistry
Briefly explain if wearing googles or other eye protection remove the hazard for these students.
asked on February 12, 2018 
Trigonometry
arctan(cot10Pi/9)
asked on November 27, 2016 
MATH  HELP PLEASE
The length of a rectangle is 3yd less than twice the width, and the area of the rectangle is 65ydsquare. Find the dimensions of the rectangle.
asked on November 9, 2016 
Precalculus
Find the acute angle between the lines 2x3y6=0 and x+5y20=0
asked on October 15, 2016 
calculus
Let g(x)={x^2x2 if x is not equal to 1 {0 if x=1
asked on January 29, 2017 
Precalculus
Derive an identity that transforms sin(α+β+γ) into a sum of products of sines and/or cosines of the individual numbers α, β, γ.
asked on October 15, 2016 
math
6/?=18/?=?/12 (fractions)
asked on April 2, 2012 
math
What is 5 percent of 40
asked on April 2, 2012 
math
5,25,50,10 what are the next 3 numbers?
asked on October 3, 2011 
mat?h
What would the answer be to 4m+(3n)+n? 3n squared +4m 4m+(3n)+n = 4m + n(3 +1) = 4m +(2n) = 2(2m n)
asked on October 19, 2006 
Calculus Antiderivatives
Find a function whose derivative is a constant k
asked on March 4, 2017 
Math
Kailey's recipe calls for 1 1/2 cups of oil to make one large batch of cookies. How much oil will she need for 1/4 batch?
asked on February 7, 2017 
Calculus
Can you please help me get the solution to this limit without using squeeze theorem and l'hopitals rule lim x to 0 of x^3 sin(1/x) lim x to 0 of x^2 sin^2(1/x)
asked on January 11, 2017 
Do newspapers, magazines, television, radio, movie
Im not sure what directing to go for this essay, i have changed it 3 times. can someone tell me if this would be correct? The answer is media doesn't decide what is important, The creators put out there what they think will catch peoples eyes, boring
asked on January 12, 2015 
chemistry PLEASE HELP
How many milligrams of sodium azide will produce 8.35 Liters of N2 at STP???
asked on March 7, 2013 
Biochem
1 ml of whole blood is collected and centrifuged to obtain a plasma sample. The volume of the plasma sample is 600 microlitres. A 1 in 4 dilution of the plasma is made and analysed using a cholesterol assay like the one you performed in the laboratory. 10
asked on September 30, 2012 
math help needed
what is 5 percent of 40
asked on April 2, 2012 
Integral Calculus
How to determine the order and degree of this differential equation, (y''')^22(y')^6=x2
asked on March 17, 2017 
Precalculus
If sin2x=7/25, siny=2/sq root of 13, cot y>0, and pi/4
asked on November 19, 2016 
*** MATH, PLEASE HELP!
Solve 5x^5/x^4x+3. THANK YOU!
asked on November 9, 2016 
Precalculus
If sin x=3/5 and sec x>0, find all the other circular function values of x
asked on October 15, 2016 
Physics
Determine the mass of a pasteboard with area 75.0cm
asked on September 15, 2016 
Maths
all the integer values of 4 < 2x 6 < 12
asked on June 19, 2016 
Chemistry
How many grams of KOH will be needed to boil a liter of cold water?
asked on December 12, 2010

pre algebra
whats the answers to the whole quiz?
posted on May 6, 2019 
Algebra 1
1/(x5)(x+7) =1/(x^2+2x35)
posted on March 27, 2019 
Health
thanks that girl!
posted on March 8, 2019 
Math
Convert 566.2% into a decimal
posted on March 6, 2019 
Language Arts Ms. Sue?? Writeacher?? Reed?
what are the answers to the whole quiz, i'm new by the way.?
posted on February 28, 2019 
Math
181 and 327
posted on February 14, 2019 
History
your right
posted on February 11, 2019 
Science
That's not now stop!
posted on February 11, 2019 
Science asap
A C C A C 100%
posted on October 23, 2018 
Art
The ms. Sue on here is not the right Ms. Sue
posted on May 16, 2018 
2 problemsmath
alright, thank you!
posted on April 12, 2018 
2 problemsmath
sorry, for question 1 its x: 0; 1; 3; 6; 7
posted on April 12, 2018 
General chemistry
Ammonia?
posted on February 12, 2018 
Calculus Related rates
Is dA=4/3?
posted on March 1, 2017 
Calculus Related rates
So dr/dt is equals to 1/9pi? or i have miscalculated again?
posted on March 1, 2017 
calculus
Srry the question is incomplete... please help with these questions a. Is g(x) continuous at x=1 b. What type of discontinuity does it have
posted on January 29, 2017 
Math
25
posted on January 18, 2017 
algebra
.75(8x24)4x=182 49218+328=182 510+328=182 182=182 if x=82
posted on October 1, 2016 
algebra
solve for x 0.75(8x24)4x=182 6x184x=182 2x=182+18 2x=164 x=82
posted on October 1, 2016 
The Giver
It's D because I am in connection acedmey
posted on May 27, 2016 
Math
3P = s Ps = 3
posted on March 15, 2016 
Math I need help Please help me!!!!!!
A car is traveling at a rate of 54 miles per hour. What is the car's rate in feet per second? How many feet will the car travel in 20 seconds? In your computations, use the fact that 1 mile is equal to 5280 feet.
posted on March 13, 2016 
factorization
How did you get 891? I'm confused on that... PLZ explain!
posted on January 12, 2016 
Math
aflyercracker
posted on November 17, 2015 
Science 8th grade
What gets hot and cold faster, solid or gas and why?
posted on April 6, 2015 
Stats
But, we know that the 5 came up two times in the first eight rolls.
posted on August 23, 2014 
Science
The cup becomes positively charged and I know this 100% the right answer.
posted on March 10, 2013 
math
first do what is in perenthises then do exponints then multiply then divide then add then subtract. you can remember this by doing p e m d a s pemdas!!!!!!!!!!
posted on May 17, 2012 
Jobs(9th)
you should reasearch some real interior designers and look up all of your questions
posted on April 2, 2012 
Science
the answer is letter c think of food food is chemical energy
posted on April 2, 2012 
math
i know but thanks anyway
posted on April 2, 2012 
geometry
40 multiplyed by 12 equalls area
posted on April 2, 2012 
math help needed
thanks CON
posted on April 2, 2012 
Geometry
plus wouldnt the answer be 36 because there both square and there distance isnt far
posted on April 2, 2012 
Geometry
whats a ratino and then ill help because i have no idea what that means
posted on April 2, 2012 
math
what
posted on April 2, 2012 
math
you dot need a calculator unless you memorized the area and you don't need tape unless its used to hold down string
posted on April 2, 2012