Questions Asked on
March 23, 2013

Chemistry
3. Which oxidationreduction reactions are best balanced by the halfreaction method? A.) covalent reactions *B.)acidbase reactions C.) ionic reactions D.) intermolecular reactions Thank you.
asked by Anonymous 
chemistry
Consider a solution made by mixing 500.0 mL of 0.04182 M Na2HAsO4 with 500.0 mL of 0.03645 M NaOH. Complete the mass balance expressions below for Na and arsenate species in the final solution. There are 4 arsenate species, but I only got three of them. I
asked by Jackie 
Chemistry
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 106) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added. a)0.0 mL b)20.0 mL c)25.0 mL d)40.0 mL e)50.0 mL f)100.0 mL
asked by Jeff 
Chemistry
A solution contains 25 mmol of H3PO4 and 10. mmol of NaH2PO4. What volume of 2.0 M NaOH must be added to reach the second equivalence point of the titration of the H3PO4 with NaOH?
asked by Holly 
physics
Two fixed charges 1.07mC and 3.28mC are 61.8 cm apart. Where the third charge may be placed so that no net force acts on it
asked by hamid 
chem
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 0.080 M NaOH. chlorous acid (HClO2) benzoic acid (C6H5COOH)
asked by hannah 
physics
A rock, mass = 2.0 kg, is fired straight up at 60 m/s from a catapult. What will be its maximum height at the moment it stops going up and starts to come down? Use the magnitude of g to be 10m/s2.
asked by Anonymous 
CHEMISTRY HELP PLEASE!!!
The solubility of AgCl(s) in water at 25 C is 1.33x10^5 M and its delta H of solution is 65.7 kJ/mol . What is its solubility at 60.1 C ?
asked by vanessa 
Chemistry
Suppose that 2.3 L of gas at 35°C and 1.0 atm is expanded to 4.5 L at 42°C. What will the final pressure of the gas be? (Ti in Kelvins=308.15; Tf(K)=315.15) Can someone please show me how to plug the values into the Combined Gas Law formula to calculate
asked by Pam 
Math
CAN YOU HELP ME MS.SUE JUST GIVE ME THE ANSWER PLEASE I TRY AND TRY AND TRY AND STILL I CAN'T DO IT PLEASE I NEED HELP PLEASE GIVE ME THE ANSWER ANYBODY MS.SUE ANYBODY PLEASE HELP ME WITH THIS PLEASE PLEASE GIVE ME THE ANSWER PLEASE :( :( :( :( :( :(
asked by Dianna 
Chemistry
Calculate amount (in grams) of unknown acid used for titration. You want 30 mL of titrant to get the equivalence point. Assume that the base is 0.05 M and the unknown acid molar mass is around 400 g/mol.
asked by Justine 
physics
a positive test charge of 3.0uC experiences a force of 0.75 N in an electric field. What is the magnitude of the electric field at the location of the test charge?
asked by alex 
Math(arithmetic & Geometric Series)
1)The sum of 6 terms of an arithmetic series is 45, the sum of 12 terms is 8. Find the first term and the common difference? 2)If in a geometric sequence the sum of the second and the third is 20 and the sum of the fourth and fifth is 320, find the common
asked by Estrick Abel 
Physics please help!!
A cart of mass M1 = 5.00 kg and initial speed = 3.00 m/s collides head on with a second cart of mass M2 = 3.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. I have tried the answer 5.0 m/s however it says it
asked by Erin 
Chemistry
What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.83 at 25 Celsius? Ka for HC2H3O2 is 1.8 x10^5 a)0.82 b)0.55 c)3.5 d)1.2 e)2.0 The answer I got was 8.2 ..(help!)
asked by Viv 
Calculus
an open topped cylinder has a volume of 125 cubic inches. determine the radius of the pot that will minimize it's surface area. What I have so far... radius =r keight =h V=πr²h 125/πr²=h SA = πr² + 2πr(h) = πr² + 2πr(125/πr²) SA =πr² +250/r
asked by Dewayne 
Trigonometry
If sin A = 3/5 and cos B = 24/25 and
asked by Maryanne 
chemistry
how many grams of Ag2CO3 will precipitate when excess Na2CO3 solution is added to 64.0 mL of 0.554 M AgNO3 solution?
asked by mya 
geometry
The measures of two consecutive angles of a parallelogram are in the Ratio 3:7. Find the measure of an acute angle of the parallelogram
asked by Kay 
Physics so confused!!
A bullet with a mass of 5.40 g is fired horizontally at two blocks resting on a smooth and frictionless table top as shown in the Figure. The bullet passes through the first 1.20 kg block, and embeds itself in a second 1.20 kg block. Speeds v1 = 3.90 m/s
asked by Julia 
chemistry
Determine [Zn2 ], [CN–], and [HCN] in a saturated solution of Zn(CN)2 with a fixed pH of 1.78. The Ksp for Zn(CN)2 is 3.0 × 10–16. The Ka for HCN is 6.2 × 10–10.
asked by Jackie 
chem
(b) (4 pts.) Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a
asked by Anonymous 
maths
if the LCM of first 20 natural numbers is X, then what will be the LCM of first 25 natral numbers
asked by Meenakshi 
Chemistry
A chemist dissolves 0.095 g of CuSO4 · 5H2O in water and dilutes the solution to the mark in a 500mL volumetric flask. A 39.7mL sample of this solution is then transferred to a second 500mL volumetric flask and diluted. What is the molarity of CuSO4 in
asked by Neftali 
math
The total weekly cost (in dollars) incurred by Lincoln Records in pressing x compact discs is given by the following function. C(x) = 2000 + 2x  0.0001x2 (0 x 6000) (a) What is the actual cost incurred in producing the 1011st and the 1821st disc? (Round
asked by Kaleia 
chemistry
What fraction of piperazine (perhydro1,4diazine) is in each of its three forms (H2A, HA–, A2–) at pH 8.98?
asked by Jackie 
Finite Math
The reading list for a literature class has 6 fiction and 8 nonfiction books. A student is to write a report on 5 books from the list during the semester. The report must include at least 1 and at most 4 reports of fiction books. In how many ways can the
asked by Sam 
physics
a positive test charge of 3.0uC experiences a force of 0.75 N in an electric field. What is the magnitude of the electric field at the location of the test charge?
asked by alex 
Chemistry
Please tell me which Gas Law equation to use to figure out this problem... A helium balloon at 25°C, 1 atm, has a volume of 2.88 L. Additional helium is pumped into the balloon. It now contains 1.20 g of He and its new volume is 7.20 L. How many moles of
asked by Pam 
Math
23.What is the approximate circumference of a circle with a radius of 6 centimeters? A.12 B.18 C.24 D.36 D 24.What is the length of the diameter if the radius is 15? A.5 B.15 C.30 D.45 C 27.What is the circumference of the circle velow if it has a radius
asked by Jerald 
maths
from a rectangular piece of metal sheet of length and breadth 1.60 m and 80 cm respectively, 3 circular sheets of 20 cm radius are cut out. what area of metal is left?
asked by parth 
calculus
A polynomial function p(x) has a relative maximum at (3, 4) a relative minimum at (1, 6), a relative maximum at (5, 2) and no other critical points. How many zeros does p(x) have?
asked by James 
Literature
If you consider The Call of the Wild to be an allegory, which one of the following statements would be true? A. The book is a story about the need for socialism. B. Judge Miller represents the primordial condition. C. John Thornton represents the civilized
asked by Paul 
physics
A group of swimmers is resting in the sun on an oﬀshore raft. They estimate that 2.85 m separate a trough and an adjacent crest of surface waves on the lake. They count 13 crests that pass by the raft in 20 s. How fast are the waves moving?
asked by Bryan 
L.o
Name two community organization that are involved in supporting or giving redress to water pollution.and explain
asked by Nokwanda 
physics
A ball of mass 0.750 kg is attached to the end of a 1.20m long cord that can withstand a maximum tension of 50.0 N. If swung in a vertical circle, what is the maximum velocity the ball can achieve before the string breaks?
asked by R 
Business Math
Hafers, an electrical supply co., sold $4200.00 of equipment to Coates Wiring Inc. Coates signed a promissory note 512th with 6.00% interest. The due date was Aug. 21st Short of funds Hafers contacted their bank on 76th;the bank agreed to take over the
asked by Pat 
physics
a machine weighing 1500N is supported bt two chains attached to some point on the machine.one of these ropes goes to the eye bolt in the well & is inclined 30 degrees to the horizontal & the other goes to the hook in ceiling & is inclined at 45 degrees to
asked by wilson 
WTI
1LB of ice at 20 deg f exerts its force downward. after the ice has absorbed 200 BTU's what direction will the force be exerted? After absorbing 2000 BTU's what direction will the force be exerted?
asked by Gilbert 
chemistry
A particle wavelength (λp) of a proton is 1012m. What is the velocity of this proton [m/s]? To achieved the velocity that you just computed, what must have been the potential difference (V) through which the proton was accelerated? An electron of
asked by schoolgirl 
math
the nile river is the worlds longest river .let n sttand for the length in miles of the nile. th parana river is 3,030 miles long. write an expression to show how much longer the nile is than the panama.
asked by taffy 
college algebra
A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
asked by k 
Chemistry
Assuming complete dissociation, what is the pH of a 2.55 mg/L Ba(OH)2 solution?
asked by Joe 
physics
The red box has a mass of 25.2 kg and the blue box has a mass of 12.5 kg and the force is 211 N. To the nearest tenth of a m/s2 what is the acceleration of the combination?
asked by Anonymous 
Earth and Space Science
Put the following astronomical bodies in order from largest to smallest: a. Universe b. Galaxy c. Moon d. Planet e. Solar System f. Comet
asked by Stephanie 
physics
A car of mass m traveling at speed v on a horizontal road applies its brakes and comes to rest in time t while traveling a distance of d. The amount of internal energy created is?
asked by wyatt 
Physics
Two people wearing skates facing each other. The 1st person is 75kg and pushes the second person 60 kg away at a speed of 2.0 m/s. What is the speed of the 1st person?
asked by Gina 
chemistry
(a) Consider the gaseous molecule BN. At home, construct the molecular orbital diagram that is consistent with the known order of filling of molecular orbitals in the second period and with BN being stable and paramagnetic. What is the bond order of BN?
asked by schoolgirl 
accounting
On dec. 31, 2010 a corporation issued 200,000 face value 12% bonds that mature 10 years from the date of issue. The issue price was 97. if the firm uses the straight line method of amortization interest expense for 2011 wll be reported at
asked by pat 
Maths
The mean distance of the sun from the sun is 150 million kilometres.Express this in scientific notation.
asked by Ankur 
mathematics
the theoretical probability of winning the lottery is 1/1,000,000,000.which of the ff is true if you purchase a lottery ticket?A.you will only win the lottery if you buy 1,000,000,000.B.you will never win the lottery.C.you will definitely win the
asked by francisca 
English 12
Read the poem “the kiss” below and write a detailed analysis of the poem’s meaning and language. Questions: 1.) What is the poem about? 2.) who is speaking in the poem? to whom? 3.) how does the poem convey its message? a. How does the poem look on
asked by Lorylee 
physics
two forces f1 and f2 are acting at a point such that the angles between them are (1) 30 degree (2) 60 degree and (3) 45 degree show that resultant forces will be
asked by cat 
ENGLISH/MATH HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
NYS ELA 7 Score  Level 2 (high two so I was seven points away to a three) My Scale Scare  658 Level Two: 642664 (scale score) Level Three: 665697 (scale score) NYS Math 7 Score  Level 3 My Scale Score  678 Level Three  670693 (scale score) I really
asked by Laruen 
Math
I'm having trouble on the 2nd part of the question below. The value of a 1962 Mickey Mantle baseball card went from $900 to $700. a. Write an integer to describe the change in value in the card. ( I know this would be 200) b. Use the abolute value of the
asked by Brandi 
maths
Let the bottom edge of a rectangular mirror on a vertical wall be parallel to and h feet above the level floor. If a person with eyes t feet above the floor is standing direct at a distance d feet from the mirror, what is the relationship among h,d and t
asked by black_widow 
chemistry
if you want a solution that is .1m in ions what mass of na2so4 must you dissolve in125 grams of water assume total dissolution of ionic solid.
asked by rich 
biology
time day 0 day 1 day 3 day 4 day 5 day 7 count blank 7 10 5 14 9 8 low 45&49 64&70 62&69 75&79 80&82 68&72 high 45&49 72&78 100&112 180&195 250&267 208&226 Calculate the cell yield for the following data that were obtained using a coulter counter.
asked by nadye 
math
A spherical water tank holds 15000ft^3. What is the diameter of the tank? Use V=pie/6*d^3
asked by adriana 
math
a rectangle has a length of 13 units. the perimeter of a rectangle is twice its length. complete the table to find the perimeter of the rectangle if its width is 5,6,7 or 8 units wide
asked by taffy 
physics
two forces f1 and f2 are acting at a point such that the angles between them are (1) 30 degree (2) 60 degree and (3) 45 degree show that resultant forces will be
asked by cat 
college algebra
A roll of 640 feet of chicken wire is used to enclose a rectangular vegetable garden.Express the area A of the garden in terms of its length (x)
asked by k 
physics
A small marble is suspended from a 45 cm string and creates a conical pendulum (like in the picture beside question #57). The marble revolves at constant speed in a horizontal circle with a 6.5 cm radius. Calculate the marble's velocity along the circle.
asked by R 
chemistry
Magnesium can be produced by reaction of magnesium oxide (MgO) with silicon (Si). The byproduct of the reaction is magnesium orthosilicate (Mg2SiO4). A reactor is charged with 183.0 kg of MgO and 116.0 kg Si. Assume the reaction goes to completion.
asked by schoolgirl 
chemistry
Calculate the enthalpy of atomization per unit volume for Rb. Express your answer in kJ/m3. Determine the volume (in mL) occupied at room temperature by 3.5e22 mercury (Hg) atoms in the liquid state.
asked by schoolgirl 
chemistry
Atoms of ionized lithium gas (Li2+) are struck by neutrons moving at a velocity of 1.46e5 m/s. Calculate the shortest wavelength in the emission spectrum of Li2+ under these circumstances. You can assume that all electrons start in the ground state. Enter
asked by schoolgirl 
Maths
The mean distance of the sun from the sun is 150 million kilometres.Express this in scientific notation.
asked by Ankur 
math
A savings account opened 3 months ago now has a balance of Rs. 20,400. If the bank pays 8 percent p.a. Simple interest, how much money was deposited?
asked by S 
chemistry
Calculate the atomic weight of an element (X) given the following information: 26X: 26.000 amu at 0.1102 fractional abundance 28X: 28.000 amu at 0.6487 fractional abundance 29X: 29.000 amu at 0.2411 fractional abundance What element might the above problem
asked by schoolgirl 
chemistry
Tantalum metal is produced by reaction of potassium heptafluorotantalate (K2TaF7) with elemental sodium (Na) in a reactor heated to 850oC. The byproducts are potassium fluoride (KF) and sodium fluoride (NaF). The reactor is charged with 208.0 kg of K2TaF7
asked by schoolgirl 
college algebra
A roll of 640 feet of chicken wire is used to enclose a rectangular vegetable garden.Express the area A of the garden in terms of its length (x)
asked by k 
Math/Physics
A quantity of water at 87 degrees C is cooled at a rate of 2844 MJ/h. After 40 minutes, the water has changed to ice, having a temperature of 243K. Calculate the mass of the water/ice. I know 243K = 30 degrees C I'm assuming I have to use my sensible and
asked by Dylan 
Math
One jar of peanut butter and 3 loaves of bread cost $6.70. Three jars of peanut butter and 1 loaf of bread cost $9.32. Find the cost of a jar of peanut butter and a loaf of bread.
asked by Shannon 
math
consider the functions f(x)=x^32 and g(x)=3 sqrt x+2: a. find f(g(x)) b. find g(f(x)) c. determine whether the functions f and g are inverse of each other. I have no clue where to even begin!
asked by marie 
biomechanics
By actual measurement it has been shown that a sprinter pushes 1700N on each foot at the starting blocks . The right at 34o and the left at 52o Calculate the vertical component for each foot.
asked by yaya 
chemistry
Consider an electron in the ground state of hydrogen. (a)What is the least amount of energy needed to excite the ground state electron in Joules? (b) Is an electron in the ground state of hydrogen capable of absorbing a photon with energy of 1.38e18
asked by schoolgirl 
Math
16.Eliot spent 24 minutes solving 8 math problems.At that rate, how many math problems can he solve in 54 minutes? a.12 B.16 C.18 D.24 A? Can you explain why it isnt a
asked by Jerald 
Math
determine the equation of a line that passes through (2,1) and is parallel to the line 3x7y=5
asked by k 
University of Ghana
• A car moves 26 km due east then 14 km due north. It then turns along a path running northwest with 15 km, then 17 km due west. If the time for the entire journey is 2 hrs. • Find; • (a) the car’s average speed in m/s • (b) the car’s average
asked by Daniel 
real estate finance
I need to find the mortgage loan amount and can't remember how to do it. The borrowers have a combined gross monthly income of $50,400. Sale price is $190,000 and buyers are able to obtain a 90% conventional FNMA/FHLMC loan at 4 3/4% for 30 years. The
asked by tmouery 
Math 112 Help pelase
A class of 23 students was using square tiles to build rectangular shapes. Each student has more than one tile and each has a different number of tiles. Each student was able to build only one rectangular shape. All tiles had to be used to build the
asked by Enis 
math
49x+21x+9/2=0 write the discriminant of the following quadrctic and DETERMINE the nature of in each case.
asked by Silchang Mong 
Math
Which equation describes the relationship between x and y in the table below? x y 5 20 7 28 9 36 11 44 A.y=x+15 B.y=x+8 C.y=3x+5 D.y=4x 14.Henry rides his bike 6 miles every 4 days. At that rate how far will Henry ride his bike in 12 days? A.6 B.12 C.16
asked by Jerald 
College math
Rebekah's recipe for 41/2 dozen cookies call for 6 cups of sugar. How many cups of sugar are needed to make 8 dozen cookies?
asked by Anonymous 
maths
If G is a group of order 12, the G must have a subgroup of all of the following orders EXCEPT Choose one answer. a. 0 b. 12 c. 2 d. 3 e. 6 f. 4
asked by black_widow 
chemistry
An electron of wavelength 1.74*1010m strikes an atom of ionized helium (He+). What is the wavelength (m) of the light corresponding to the line in the emission spectrum with the smallest energy transition?
asked by Maikol 
math
How do you write and absolute value statement describing the situation of something going down in value from $900 to $700? Thanks..
asked by Brandi 
math
which expression below is equivalent to to 4/3x + 4 2/3?
asked by wynta 
physicsssss
Suppose that the magnetic field in the figure below has a magnitude of 1.1 T, the rod has a length of 0.83 m, and the hand keeps the rod moving to the right at a constant speed of 3.8 m/s. If the current in the circuit is 0.045 A, what is the average power
asked by purplegoddess 
physics
a yoyo is spun from rest by pulling on the string with a constant tension of 2.0N. The radius of the inner rod on which the string is strung around is 0.50cm. the tension applied for 5.0seconds after which the yoyo is observed to spin with an angular
asked by kirafreedom 
Math/Physics
Two kg of water at a temperature of 50 degrees C have 485.3 kJ of heat transferred from them, resulting in a mixture of ice/water at 0 degrees C. What is the composition of the mixture? This is what I did and would like verification of my answer.
asked by Dylan 
math
How many feet will it take a car traveling at 120 mph to stop?
asked by val 
math
Help please Simplify the expression. √3(5√3) + 6√3 a) 10√3 b) 11√3  3 c) 5√3 + 15 d) 6√3 + 5
asked by Anonymous 
Physical Chemistry
An electron of wavelength 1.74*1010m strikes an atom of ionized helium (He+). What is the wavelength (m) of the light corresponding to the line in the emission spectrum with the smallest energy transition?
asked by Echoes 
math
find the functions f and g so that f.g=H: H(x)=sqrt x^2+3
asked by Sade 
math decimals
Is 1/6 > or< 0.16, because the repeating decimal in 1/6 is what confuses me.
asked by Sandy 
Math
hailey wants to rake her entire yard. This morning she raked 1/3 of the yard, and this afternoon she raked another 3/5 of the yard. What fraction of her yard still needs to be raked?
asked by Anne 
chemistry
A gas in a discharge tube consists entirely of ions of the same element, of the same charge. Each ion has only one remaining electron. The voltage between the electrodes of the gas discharge tube is increased from zero. Electrons are accelerated across the
asked by schoolgirl 
History
True or false history questions. im stuck on two questions? As expressed in the painting by Eugene Delacroix, early 19th century reformers found their rally cry in freedom and justice, a legacy from the french revolution. true or false? The french
asked by Jessica Hamilton 
Math
16.Eliot spent 24 minutes solving 8 math problems.At that rate, how many math problems can he solve in 54 minutes? a.12 B.16 C.18 D.24 A? 17.Ronald got 92% of the problems correct on a test.Which number could also represent 92%? A.9.2 B.0.092 C.9/2 D.46/50
asked by Jerald 
History
History fill in the blank questions? in the _______ the french lose their colonial settlements and trading posts. The ___ offered the opportunity to help break Britain monopoly on trade.
asked by Jessica Hamilton 
language arts
what is the exact verb of swam
asked by emily 
college algebra
A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
asked by k 
fredric douglass question
What was the name of fredic's all black army called
asked by Mr.Brain 
MS. SUE!!!!!!
Factor each expression 3n squared  3
asked by ki 
chemistry
Atomic sodium is studied by photoelectron spectroscopy. What is the maximum wavelength of the incident radiation that will ionize the most weakly held electrons in sodium and scatter them so that their de Broglie wavelength measures 3.091e10 m?
asked by gluck 
Geomatry
If a zipline ends at 8ft above the ground and goes upward at a 6 degree angle, how high will it begin?
asked by Emma 
PreAp English
My teacher has assigned a project. I have to make a collage for Pip in Great Expectations. I have to use symbols that would represent what he loved or feared while he was in The Forge, London, The Forge again, then to Cairo. Do you know of any symbols I
asked by Maci 
Math
1.What is the greatest common factor of 28 and 35? A.4 B.7 C.9 D.14 B? 2.Dina has a savings account with $276.38 in it. Her older sister Winnie has a savings account with $329.84 in it. How much more is in Winnie's account than Dina's? A.53.46 B.54.36
asked by Jerald 
biology
Devise a plan to carry out the following growth curve: Seed cells on day 1. Transfer cells to the test media on day 0. From day 0, plan to carry out your growth curve for 10 days. During this time, the cells are to be fed three times (excluding the day 0
asked by nayle 
Math
write an equation which must be true if the line from p(x,y) to a(25,0) is perpendicular to the line from P(x,y) to the center of the circle x^2+y^2=400
asked by Matt 
Prenatal Development
I'm having a hard time choosing a teratogen (anything that causes harm to a fetus), especially since all the easy ones to find ones are all takenRadiation, Rubella, Syphilis, Hydrocodone, Heroine, Methamphetamine, Methadone, Caffeine, Nicotine,
asked by Jessica 
math
which unti would be best to measure the distance around a equator?inchs,feet,yards or miles
asked by kyia 
Precalculus
1) What is the equivalent of this? 5x(2x+7y)+7xy4x(y+3)
asked by Isis 
Science
Which would you measure in millimeters , a capacity of a juice box or the capacity of a water pitcher?
asked by Ashley 
college algebra
A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
asked by k 
language arts
what is the past tense of go
asked by emily 
Math
7.Figure out the expression bellow (7+3)x25 A.8 B.15 C.22 D.30 B 8.When Henry went to the pet store he noticed that there were 12 large fish tanks with goldfish.The store clerk told him that there were 107 goldfish in each tank.How many goldfish were
asked by Jerald 
math
The ratio of boys to the total number of students is 2:5. If there are 123 girls, how many boys are there? I estimated 49.2, is that correct?
asked by Sandy 
Life Orientation
Identify and describe 3 environmental health hazards that cause ill health,accidents,crises and disasters within communities in South Africa and globally
asked by Kananelo 
social Studies
What are Julius Cesar offensive tools and weapons this warrior would use?
asked by Anonymous 
Math
I have to make a table with y on one side and x on the other. y=x. I have to provide integer values of x from 3 to 3. I don't understand how to do this. Please help!
asked by Cherie 
algebra 2\arithmetic series
on the moon ,afalling object falls jest 2.65feet in the first second afther
asked by maya 
Math
Ms.Sue You helped me with a table but now I have to do one where y=x using integers from 3 to 3. I am still unsure of how to do this. When I tried I got the same results as the previous table. I really appreciate your help and am trying very hard to
asked by Cherie 
Psychology
How do I find reliable sites for a research project, when I can't use journal articles published online, or personal websites?
asked by Anna 
Math
I need to make a table where y=x using the numbers 3 to 3. I don't understand.
asked by Cherie 
Math
20.Proms earned 82 dollars last week.She earned 6 dollars each hour and received a bonus of 10 dollars for exceptional work.Which equation can be used to find h the number of hours Proma worked last week A.6h+10=82 B.6h10=82 C.10h+6=82 D.10h6=82 A An
asked by Jerald 
childhood.
Developmental Observation of young children is best done In
asked by Yuliana 
Stats
Is noise present in the differenced series (taking nonstationary data and making it stationary through first difference of a time series)?
asked by Emily 
algegra
can anyone help me on this? please (2x)^3 + 2^3x
asked by DJDiamond 
Math
One week a company has a loss of $216.70. The next week they have a gain of $323.83. What is the net gain between the 2 wks?
asked by Brandi 
grammar
Is saying "she's sitting in back of me" poor grammar.
asked by Judy 
History
The following countries revolted in 1848; however they were discouraged....? by the regular armies of the nation and ended in defeat Germany, France, Austria. or hingarians?
asked by Jessica Hamilton 
maths
Solve the inequality //(2x1)(x+3)/4/< 1 where /x/ is the modulus of x.
asked by black_widow 
English
Why should grade 8 students have to do volunteer hours to graduate grade 8? Please provide me with atleast 6 points and so I can expand on it. Your help is very much appreciated!:)
asked by bob 
chemistry
.592grams of na2so4
asked by rich 
maths
Is every Fermat number 2^(2^n) + 1 composite for n > 4?
asked by black_widow 
algebra
solve: 49w^2  100
asked by Kelley 
Algebra
103(2x5)=4x6
asked by Georgiue 
Calculus
F(x)= ln((3x+6)^4 (x^3 2)^5 ) F'(x)=
asked by Kevin 
math
is a SQUARE A REGULAR POLYGON
asked by booker 
reading
can you help me with my grammar
asked by Anonymous 
algebra 2nd try
I need to simplify this 2/∛49 . I figured it out to be (2∛((49)^2))/49 but the system I added my answer to says this is incorrect. Please help me! Thanks anyone.
asked by sally 
math
solve the problem (1500*30*400)1/2*(1500*30*400)
asked by tauranus 
english
how do we write a thesis statement?
asked by ma 
math
x squared  9 factor
asked by ki 
Earth and Space Science
which is closer to earth a moon or galaxy?
asked by Stephanie 
Math
write an equation which must be true if the line from p(x,y) to a(25,0) is perpendicular to the line from P(x,y) to the center of the circle x^2+y^2=400
asked by Matt 
arithmetic
10.7 div by 315.00=
asked by Anonymous 
Science
if you start with 150g of co60 and 40 g remain, how much time has passed? co60 has a half lie of 5 yrs
asked by Logann