Questions Asked on
April 23, 2016

GEOMETRY HELP PLEASE
The bases of trapezoid $ABCD$ are $\overline{AB}$ and $\overline{CD}$. We are given that $CD = 8$, $AD = BC = 7$, and $BD = 9$. Find the area of the trapezoid.
asked by Sarah 
Maths
A rectangular room 8m long by 5m wide contains 129m square of air. Calculate the height of the room. I assume that the above question is a trick question. Since the room is 8m high, it then goes that the height I 8metres. Thank you.
asked by Lucas 
math
A man invests rs6750,partly in shares of 6% at rs140 and partly in shares of 5% at rs 125.if his total income is rs280,how much has he invested in each?
asked by nitin 
math
which pair of expressions are equivalent A 4(6X) and 10X B 4(6X) and 24X C 4X + 6X and 10 XX D 4X + 6X and 24X
asked by sara 
geography
Settlement: Centrifugal forces drives people and businesses to move out of this landuse zone. Write a paragraph (approximately 12 lines) supporting this statement by referring to factors that cause businesses to move away from this landuse zone.
asked by Suffix D 
Chemistry
Methane (CH4) is the major component of natural gas. 2.5 moles of methane were placed in a commercial colorimeter and subjected to a combustion reaction. The reaction released 2800 kJ of energy. Compare this energy value to the energy values of paraffin
asked by Tracy 
relative and absolute change
If you earn $1200 per month and you expect your earnings to increase by 10% per year, how much do you think you will be making per year in 5 years?
asked by Anonymous 
Calculus
The rate of decay is proportional to the mass for radioactive material. For a certain radioactive isotope, this rate of decay is given by the differential equation dm/dt = .022m, where m is the mass of the isotope in mg and t is the time in years. A. If
asked by Anonymous 
Calculus
A race car is running practice laps in preparation for an upcoming race. To judge how the car is performing, the crew takes measurements of the car's speed S(t) (in miles per hour, or mph) every minute. The measurements are given in the table below. t
asked by Anonymous 
Absolute and relative change
The interest rate on a car loan has increased 50% over the last 10 years and is now 9%. What was the rate 10 years ago?
asked by Anonymous 
life orientation
Identify 3 human rights violations or discrimination and explain in an introductory paragraph why you choose the specific human rights violations or discrimination (xenophobic )
asked by Londani 
life orientation
are individuals empowered and do they understand their human rights or when their rights/the rights of others are being violated.provide five reasons for your analysis and standpoint.
asked by Anonymous 
AP Calculus
Suppose that f has a continuous second derivative for all x, and that f(0)=1, f'(0)=2, and f''(0)=0. A. Does f have an inflection point at x=0? Explain your answer. B. Let g'(x) = (3x^2 + 2)f(x) + (x^3 + 2x + 5)f'(x). The point (0,5) is on the graph of g.
asked by Anonymous 
Calculus!!
Consider the differential equation given by dy/dx = xy/2. A. Let y=f(x) be the particular solution to the given differential equation with the initial condition. Based on the slope field, how does the value of f(0.2) compare to f(0)? Justify your answer.
asked by Anonymous 
math
an astronomer estimated that a canyon on another planet was 2.5x10^3 kilometers long which is equivalent 25,000km 2,500km 0.025km 0.0025km please help
asked by lisa 
converting parabolic equations
The vertex form of the equation of a parabola is x=8(y1)^215. What is the standard form of the equation?
asked by kimberly 
AP Calculus
Consider a curve given implicitly by the equation (1+x)y^3 + (x^4)y  85 = 0. A. Calculate dy/dx at a general point (x,y). B. Write the equation of the tangent line to the curve at the point (3,1). C. At (3,1), y(x) is defined implicitly as a function of
asked by Anonymous 
Calculus
Let M be the region under the graph of f(x) = 3/e^x from x=0 to x=5. A. Find the area of M. B. Find the value of c so that the line x=c divides the region M into two pieces with equal area. C. M is the base of a solid whose cross sections are semicircles
asked by Anonymous 
Maths
Calculate the perimeter of the sector of a circle in centimeters. Use pie = 22/7, radius =14cm and angle =45 degrees.
asked by Rolz 
math
which is equivalent to the expression shown (3.3x10^3)(1.8x10^4)? 5.94x10^7 5.94x10^8 594x10^6 59.4x10^5 please help
asked by lisa 
Calculus
The equation dy/dx = 6x^2/y gives the slope at any point on the graph of f(x). The range of f(x) is [0, infinity] and f(1) = 2. A. Find the equation of the tangent line to f(x) at the point (1,2). B. Write the function f(x). C. Determine the domain of the
asked by Anonymous 
math
on a 18 numbered spinner, how do I find an even number or a number greater than 6?
asked by Suzan 
converting parabolic equations
The vertex form of the equation of a parabola is x=8(y1)^215. What is the standard form of the equation?
asked by kimberly 
math
the standard form of the equation of a parabola is y=x^26x+14.what is the vertex form of the equation?
asked by kimberly 
Calculus
If f(2) = 2.5 and f'(2) = 2.5, then f(2.5) is approximately: A. 2.5 B. 2.5 C. 2 D. 2 E. 1.25
asked by Anonymous 
Math
(secxcosx) / (tanxsinx) = cosecx+cotx Spent hours to solve this question but failed. Please help. Thank you
asked by Aina 
maths
the distance travelled by an object thrown upwards in t seconds is 30t  4.9t square metres. after how much time would it fall down? at what all times would it be 20 metres above the ground?
asked by shivanya 
L. O
What are the factors that may threaten or limit the democratic functions of the media
asked by Mendy 
Chemistry
For the reaction H2(g) + I2(g) ⇀↽ 2 HI(g) at 425◦C, calculate [HI], given [H2] = [I2] = 0.000617 mol/L and K = 54.3.
asked by Claire 
Chemistry
At 350 K, Kc = 0.142 for the reaction 2 BrCl(g) ⇀↽ Br2(g) + Cl2(g) An equilibrium mixture at this temperature contains equal concentrations of bromine and chlorine, 0.077 mol/L. What is the equilibrium concentration of BrCl?
asked by Matthew 
Chemistry
A reaction between gaseous sulfur dioxide and oxygen gas to produce gaseous sulfur trioxide takes place at 600◦C. At that temperature, the concentration of SO2 is found to be 1.14 mol/L, the concentration of O2 is 1.39 mol/L, and the concentration of SO3
asked by Olivia 
Trigonometry
At a point on the ground 125 ft from the base of a tower, the angle of elevation to the top of the tower has a degree measure of 38 degrees. How high is the tower
asked by Claire 
Music
WHich of the following is true about a harpsichord? A. A harpsichord has a wide range of dynamics? B. It is still widely used today C. it has a very loud or very soft sound D. it creates sound by strings being plucked.
asked by help plz ;; 
Chemistry
A flask initially contains 2.00 atm of NH3, 2.00 atm of N2, and 3.00 atm of H2 at 673 Kelvin. What is the delta G for the reaction? What is the equilibrium partial pressures of each gas at 673 Kelvin? So I figured out how to do the first question with
asked by Chris 
Math
Erin bought 12 yards of landyard.She cut the lanyyard into 1/2 yard pieces. Write an equation that represents the number of pieces of landyard,n,that Erin has now.
asked by Leany 
life orientation
identify your 3 human rights violations or discriminations and explain in an introductory paragraph why you choose tha specific human rights violations or discriminations
asked by dineo manganyi 
math
) An object is moving on a straight line which is 15 centimeters away from the center of a circle of radius 28 centimeters. (Both the circle and the straight line are on the same plane.) A source of light is located on the line drawn from the center of the
asked by price 
math
the length ( L cm) of an edge of a cube is proportional to the cube root of its mass ( M grams).It is known that if L= 15, then M=125. let K be the constant of variation. CALCULATE THE VALUE OF K
asked by emily 
Data Analysis
A firm produces batteries that have a lifetime which is normally distributed with a mean of 360 minutes and a standard deviation of 30 minutes. The firm needs to keep an eye on the production process to ensure that everything is working properly and that
asked by Sam 
Maths
ABC is an isosceles triangle in which the equal sides are AB and A.If AD is an altitude and BC=1/2AB.Prove that AD^2=15BC^2
asked by Pamela 
sequence
Select the first five terms in the arithmetic sequence an = 4n, starting with n =
asked by jim 
geography
Calculate the gradient of a road (4km) intervals from a given roundabout the different height between the two end point the road is 400mm?
asked by jamilu abubakar sadiq 
math
Question 1 Production Rates A manufacturing company wishes to estimate the number of items that its workforce can produce on average each hour now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past
asked by tim 
life orientation
six ways that the human rights violation influence individual groups and the broader south Africa community
asked by phillipine 
math
The area of a rectangular prism is 93.5 inches The height of the prism is 8 inches and the width is 2.5 inches I need help in finding the length of the rectangular prism
asked by Lee 
Physicis
A mass of gas occupies 20cm at5c and 760mmhg pressure what is its volume at30c and800mmhg pressure .
asked by Chidera 
social studies
please help... Why did the Roman Empire fall?
asked by brandi 
BIO chemistry
What is the pH of a mixture of 0.042M NaH2PO4 and 0.054M Na2HPO4
asked by Katlego 
Math
The onedimensional displacement, s meters of a particle, after t seconds, is given by the function s=t(t4)^2. (i) when does the particle have zero acceleration? (ii) where is the particle at this time and what is it doing?
asked by Anonymous 
social studies
How might Greece's physical features have affected the development of Greek trade, culture, and legacy?
asked by brandi 
Math
What is the Greatest Common Factor of 36x+12y
asked by Abigail 
Chemistry
At equilibrium at 1.0 L vessel contains 22.00 mol of H2, 20.00 mol of CO2, 13.00 mol of H2O, and 5.700 mol of CO at 427◦C. CO2(g) + H2(g) ⇀↽ CO(g) + H2O(g) What is the value of K at this temperature for the reaction?
asked by John 
Math
If f[g(x)] = x, then f(x) and g(x) are inverses of each other. Why? I don't get this in my math question.
asked by Cindy 
math
What is the difference between the largest prime number less than 50 and the smallest composite number greater than 10?
asked by fabianah 
Calculus
Water is draining from a small cylindrical tank into a larger one below it. The small cylindrical tank has a radius of 4 feet and a height of 6 feet; the large cylindrical tank has a radius of 8 feet and a height of 16 feet. The small tank is initially
asked by Anonymous 
maths
If the sum of the cubes of two numbers is 72 and the difference of their squres is 12. Find the numbers.
asked by Najm 
life orientation
how is the human violation influence in the community and country?
asked by sinovuyo 
PreCalc
Help solving this please. I am unsure how to do it? Determine the domain of the following functions, write answer using interval notation. P( x )=log2(3x8)
asked by Juniper 
chemistry
Which type of heat transfer is not blocked even by an insulated thermos? radiation ???
asked by Boberto 
science
what is the function of pore in a cell membrane
asked by carmelita 
Law and ethics
You are in charge of General Hospital’s compliance program. As part of the Hospital’s orientation program, you provide an overview of the compliance program to new employees. Things to consider: The concept of compliance has been a feature of health
asked by Anonymous 
geometry
Thye area of a regular hexagon is 38 cm^2. What is the area of a regular hexagon with sides 4 times as long?
asked by Steve 
Precal/Math
Solve: log(32x)log(x+24)=0
asked by Bobbie 
Physics
A military gun is mounted on a railroad car (m = 1500 kg). There is no frictional force on the car, the track is horizontal, and the car is initially at rest. The gun then fires a shell of mass 30 kg with a velocity of 300 m/s at an angle of 40° with
asked by Jessica 
Calculus
Compute the curvature. r(t)=(t^2,2t^3/3) t >0 The answer is 1/2t(1+t^2)^3/2 I have tried multiple times but i cannot arrive to this answer.
asked by Lyndsay 
Math
How do i find the x and y intercept of y=5(3^x)
asked by Shayne 
math
Two particles A and B of mass 5kg and 9kg respectively rests on the smooth faces of a fixed wedge .They are connected by a light inextensible string passing over a smooth pulley at C and are released from rest.In the subsequent motion B hits the ground and
asked by morgan 
Math
I have a 92 average right now. I got a 93 on a major grade test, but my teacher has not posted the grade in Skyward yet. Will my average get lower or higher?
asked by Rhea 
Math
How do i solve 36^5x= (6^x)(6^x2)
asked by Carl 
fin/370
Spread the balance sheets and income statements of Lake of Egypt Marina, Inc., for 2015 and 2014. (LG36)
asked by George 
Economics
Are there any current subsidy or welfare issues that are being dscussed or addressed in parliament or in municipalities?
asked by Faatimah 
geometry
Line l has the equation y=1/2x4. Write the equation of the image of l after a dilation with a scale factor of 1/4 centered at the origin. Write your answer in slopeintercept form?
asked by pearl 
math
which is equivalent to the expression shown? 10^2 • 5^2 2,500 250**** 500 200 please help
asked by lisa 
math
which equation is true? square root 8^2=4 square root 6^2=24 square root 5^2=5 square root 3^2=81 please help
asked by lisa 
life orientation
three human rights violations and two examples of such violation
asked by conce 
physics
i figured out the ratio its 1.10 , don't know how to get the second part please help!! my understanding is not good enough to answer part 2 Pretend you have two containers, one filled with ethyl alcohol and the other filled with benzene. How would you show
asked by please help urgent! 
math
Joe made 15 points in a basketball game, 3 points are given for a long shot, 2 points given for a field goal, and 1 point is given for a free throw. In how many ways can Joe score 15 points?
asked by Anonymous 
Chemistry
One of the two possible rearrangements of the parent ion of 2methyl3pentanol is more likely than the other. Which rearrangement is more likely, and explain why there is a difference?
asked by Anonymous 
Logarithm
Determine the value of each logarithm a) Log(4)256 b) Log(2) 1/64 Thank you!
asked by Kasey 
Math
The difference between two numbers is 33. If three times the larger number is subtracted from six times the smaller number the difference is 18. Find the smaller number. 6n3(n+33)=18
asked by PLEASE CHECK MY ANSWER ASAP! 
ELA Please check answers!
Please check my answer(s) for me. I don't think I understand what adverbs, adjectives, or nouns are in infinitve phrases. Directions: Write the infinitive or infinitive phrase from each sentence. Then write noun, adjective, or adverv to identify its
asked by Destielforever 
math
Joe made 15 points in a basketball game, 3 points are given for a long shot, 2 points given for a field goal, and 1 point is given for a free throw. In how many ways can Joe score 15 points? My answer: 6 ways is this correct or incorrect please help
asked by PLEASE CHECK MY ANSWER ASAP! 
Math
How do i find x and y intercepts of y=7b^x
asked by Carl 
Geography
Mexico’s maquiladora program has been a central feature of the U.S./Mexico border. This border stretches nearly 2,000 miles, from the Pacific Ocean in California to the Gulf of Mexico in Texas. Four U.S. states (Arizona, California, New Mexico, and
asked by Anonymous 
life orientation
how does beliefs and opinions violation influence broader south African community
asked by Shannon 
english
does African marriage is an advantage for men only not women
asked by precious 
Life orientation
Evaluate the physical,social and economic consequences of this crime to the offender. How did this corruption and fraud impact negatively in the Country :for example service delivery,tax,expense of trial,etc.
asked by Maboko 
life orientation
describe the three human rights violations or discrimination you selected. And give at least two examples of such violations you have found in your research
asked by dineo manganyi 
Calculas
consider a cube with side length x cm. what is the volume of the cube? what is the surface area of the cube? The material to make the base costs $5/m^2 while it costs $3/m^2 to make the rest of the cube. Write an expression for the cost of material for the
asked by Lexci 
life orientation
critically discuss six ways that the human rights violations influences individuals, groups and the broader south african community
asked by dineo manganyi 
Algebra
Which pattern could have been used to create the sequence? 20, –40, 80, –160, 320 Multiply the previous term by –2 Divide the previous term by 2 Subtract 60 from the previous term. Add –60 to the previous term.
asked by Reyrey 
life orientation
Six suggestions on how to combat human rights violations
asked by Nomsa 
Mathematics
Find using substitution: ∫ 1/[x(1+lnx)^2] dx I'm not sure what substitution to use.
asked by Chloe 
Physics
two particles of mass m1=1.5 kg, and m2=3.5 kg undergo a 1dimensional headon collision. Their velocities along x are V1i=12 m/s, and V2i=7.5 m/s. The 2 particles stick together after the collision. a.) Find the velocity after the collision. b.) How much
asked by Jessica 
life orientation
make six suqqwstions on how to combat the violations of human rights identified by you in the previous questions and indicate any organisationds you have come about in your research and indicate how they combat the human rights violations or
asked by dineo manganyi 
Finance
You can save $ 1,500 each year in saving account that pays 4% interes quarterly. How much will you have in 5 year? What if interest was compounded semi annual? What is interest was compund annual?
asked by Ronny santos 
English
so people, what can be done to make surbubian people allowd sloughting retual in the surbubes?
asked by Hadebe Sakhile 
Psychology
Apply two psychological principles to real life situations
asked by Eleanor 
Math
If I have a pool and it is 16 feet round and 4 fthe deep, how many gallons of water would that hold?
asked by Hali Carmen 
life orientation
Identify your human rights violation or discrimination and explain in and introductory paragraph why you choose the specific human rights or discrimination
asked by goitsi 
life science, maths lit,agric,geography, life orie
Criticality discuss six way that human Rights violation influence individually, groups and broader south African community
asked by shaima 
Life orientation
How corruption and fraud impact in South Africa
asked by Malope chegofatxo 
chemistry
Hi, I am trying to find the pH of a buffer I created and then added NaOH to. This is my data: total volume of solution 34.2 mL [NaOH] before reaction 6.0 [HOAc] before reaction .8 M [OAc] before reaction .4 M [HOAc] after reaction 0 M [OAc] after
asked by anon 
Geography
Evaluate the physical,social and economic consequences of fraud and corruption impact negatively in the country For example service delivery,tax,expense of trial
asked by Mf 
geomentry
points P and Q are on line segment AB on the same side of the midpoint of AB .Point P divides AB in the ratio 2:3 and Q divides AB in the ratio 3:4.If PQ =2 ,then the length of segment AB is ________
asked by sunena 
chemistry lab
so i'm trying to finish my lab and im trying to solve for the concentration, and the lab handout says "remember all the cl from the original sample ended up in 100 mL of solution" The concentration i solved for (from my graph) was 9.8 ppm Cl....how would
asked by Anonymous 
Computer science
How do I count how many arrays there is  what do I add to the code? I have managed to create 2 buttons and the top button works and changes the fruits into alphabetical order but the second button doesn't work  please help! Press the button to change the
asked by Anonymous 
Chemistry
In the lab we synthesised nickel (II) ammine tetraflouroborate using hydrated nickel chloride and ammonia then this solution was added to a slotion of ammonia and ammonium tetraflouroborate,now im struggling to write a fully balanced chemical
asked by Sikhulile 
Natural science
What happens to the level of the salt solution in the distilling flask ? Explain why this happens
asked by Phumelele 
accounting
how to calculate depreciation using carrying value method?
asked by Jeylen 
maths
Find the median of 3,6,10,13, 14,17,19 and 22
asked by emmanuel 
Math
A biased coin is tossed 3 times. The probability that the coin will land on heads is 0.6 The probability that the coin will land on tails three times is less than 0.1 Is this correct? Show all your working.
asked by Geny 
Chemistry
What mass of CaO, can get by the decomposition of 250 g of CaCo3 with 80% purity?
asked by Adam 
algebra
Select the first five terms in the geometric sequence an=(3)n−1, starting with n=1
asked by jim 
Chemistry
Calculate the concentrations of Cd2 +, [Cd (CN) 42] and CN at equilibrium when they dissolve 0, 42mol of Cd(NO3)2, molarity= 2.50 M Kf =7.1x10^16
asked by Victor 
Chemistry
In the lab we synthesised nickel (II) ammine tetraflouroborate using hydrated nickel chloride and ammonia then this solution was added to a slotion of ammonia and ammonium tetraflouroborate,now im struggling to write a fully balanced chemical
asked by Sikhulile 
English
Speech that says english is the laguage of opportunity .why bother to teach indigenous laguage.
asked by Nonjabulo