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Questions Asked on August 1, 2013

Heather has divided $8000 between two investments, one paying 8% and the other paying 6%. If the return on her investment is
1. 3 answers
2. asked by Scott
3. 6,746 views
For a certain reaction, ΔH° = –76.8 kJ and ΔS° = –225 J/K. If n = 3, calculate E° for the reaction at 25°C.
1. 7 answers
2. asked by Tayla
3. 4,395 views
A dilute perchloric acid solution was standardized by dissolving 0.2445 g of primary standard sodium carbonate in 50 mL of the
1. 4 answers
2. asked by Gloria
3. 3,206 views
Commercial brass, an alloy of Zn and Cu, reacts with hydrochloric acid as follows.Zn(s) + 2 HCl(aq) ZnCl2(aq) + H2(g) (Cu does
1. 8 answers
2. asked by Kris
3. 2,700 views
From a standard 52 card deck, how many 5 card hands will have 2 clubs and 3 hearts?
1. 1 answer
2. asked by joe
3. 2,662 views
What are causes of social issue.what are five factors of social issue.the impact of the contemporary of social issue. How the
1. 12 answers
2. asked by Emely
3. 2,563 views
A swimmer heads directly across a river, swimming at 1.9 m/s relative to the water. She arrives at a point 50 m downstream from
1. 2 answers
2. asked by Jacob
3. 2,054 views
which one of the following statements is NOT true when a partnership is created between a parent and a teacher a. parents are
1. 8 answers
2. asked by debra
3. 1,905 views
You are creating a customer database for Modesto Nuts minor league baseball team. Draw a project network given the information
1. 0 answers
2. asked by kim
3. 1,794 views
In a population that is in Hardy–Weinberg equilibrium for two alleles, C and c, 16% of the population shows a recessive trait.
1. 1 answer
2. asked by Jen
3. 1,606 views
Write the ratio 2.7kg to 1.8kg as a fraction to the simplest form, with whole numbers in the numerator and denominator.
1. 3 answers
2. asked by Brenda
3. 1,340 views
In a population with two alleles, B and b, and the allele frequency of b is 0.4. Calculate the allele frequency of heterozygotes
1. 1 answer
2. asked by Rosie
3. 1,316 views
1. Which of the following scenarios would be the best example of a time when observation would be authentic assessment?A. A
1. 2 answers
2. asked by Nai
3. 1,203 views
how many ways can a 3 person subcommittee be selected from a committee of 7 people
1. 2 answers
2. asked by Scott
3. 1,187 views
A ground observer sights a weather balloon to the east at an angle of elevation of 15º. A second observer 3 miles to the east
1. 1 answer
2. asked by William320
3. 1,186 views
Increasing numbers of communities are addressing the need for out-of-school care due to the relationshipbetween A. teen
1. 3 answers
2. asked by Brenna
3. 1,124 views
You have a chemical sealed in a glass container filled with air. The glass container has a mass of 200.0 grams and the chemical
1. 1 answer
2. asked by Kris
3. 1,108 views
A computer chip on a circuit board has a rectangular shape, with a width of 6mm and a length of 9mm. Plans for the circuit board
1. 1 answer
2. asked by Anonymous
3. 1,087 views
sam needs to clean the window on his house. he has a 25-foot ladder and places the base of the ladder 10 feet from the wall of
1. 1 answer
2. asked by Nick
3. 1,075 views
let y be the function of x defined implicitly by the equation x^2 -2xy +2y^4=1. find the value of x where y obtains its maximum
1. 1 answer
2. asked by barbra
3. 1,057 views
New Process, Inc., a large mail-order supplier of women’s fashions, advertises same-day service on every order. Recently, the
1. 1 answer
2. asked by Anna
3. 1,056 views
A Kjeldahl analysis was preformed upon a 0.055 g sample of impure biguanide (C2H7N5, fw=101.1). The liberated ammonia, collected
1. 2 answers
2. asked by Gloria
3. 1,027 views
Nitric acid is produced commercially by the Ostwald process, represented by the following equations.4 NH3(g) + 5 O2(g) 4 NO(g) +
1. 0 answers
2. asked by Kris
3. 1,006 views
The chief financial officer of a home health agency needs to determine the present value of a $10,000 investment received at the
1. 1 answer
2. asked by April
3. 1,005 views
Consider the following unbalanced reaction.P4(s) + F2(g) PF3(g) How many grams of F2 are needed to produce 212 g of PF3 if the
1. 11 answers
2. asked by Kris
3. 994 views
Find all solutions of 4(cos(x))**2-4 sin(x)-5=0 in the interval (6pi, 8pi)I tried to work it out and got: 4(cos**2x)-4cosx -9 =
1. 2 answers
2. asked by Holly
3. 987 views
In a laboratory population of diploid, sexually reproducing organisms a certain trait is determined by a single autosomal gene
1. 1 answer
2. asked by penny
3. 956 views
Business Investigation Expenditures. During January and February of the current year, Big Bang LLC incurs $3,000 in travel,
1. 0 answers
2. asked by jose
3. 939 views
Yani wants to make a scale diagram of the floor plan of his school. He wants his diagram to fit on an 8.5in. by 11in. sheet of
1. 1 answer
2. asked by Anonymous
3. 932 views
According to the “January theory,” if the stock market is up for the month of January, it will be up for the year. If it is
1. 1 answer
2. asked by Anna
3. 883 views
Can someone show me step by step examples of simplifying3√5/64 thank you
1. 1 answer
2. asked by Alaska Diamond
3. 865 views
from a standard 52 card deck, how many 7 card hands have exactly 5 spades and 2 hearts?
1. 1 answer
2. asked by joe
3. 855 views
A bird sitting 16 feet above the ground in an apple tree dislodges an apple. After how many seconds does the apple land on the
1. 2 answers
2. asked by Need now
3. 851 views
2. The Computer Systems Department has eight faculty, six of whom are tenured. Dr. Vonder, the chair, wants to establish a
1. 1 answer
2. asked by Anna
3. 801 views
A physicist at a fireworks display times the lag between seeing an explosion and hearing its sound, and finds it to be 0.800 s.(
1. 1 answer
2. asked by Justin
3. 795 views
Bacterial digestion is an economical method of sewage treatment.5CO2(g) + 55NH4+(aq) + 76O2(g) right arrow Bacteria C5H7O2N(s) +
1. 0 answers
2. asked by Kris
3. 785 views
Compute the mean and variance of the following discrete probability distribution.x P(x) 2 .50 8 .30 10 .20 Please assist and
1. 1 answer
2. asked by Anna
3. 764 views
how many moles of Mg2+ and NO3(there is a negative sign on top of the 3 in NO3)form for each mole of Mg(NO3)2 that dissolves?
1. 1 answer
2. asked by mariana
3. 763 views
Consider the following unbalanced reaction.P4(s) + F2(g) PF3(g) How many grams of F2 are needed to produce 212 g of PF3 if the
1. 1 answer
2. asked by Kris
3. 753 views
An 8 hour exposure to a sound level of 95.0 dB may cause hearing damage. What energy in joules falls on a 0.850 cm diameter
1. 0 answers
2. asked by Justin
3. 732 views
BaO2(s) + 2 HCl(aq) H2O2(aq) + BaCl2(aq)What amount of hydrogen peroxide should result when 1.00 g of barium peroxide is treated
1. 1 answer
2. asked by Kris
3. 726 views
To win the jackpot in a lottery in Iowa, participants have to select 6 unique winning numbers out of the numbers 1 through 49 in
1. 2 answers
2. asked by emma
3. 714 views
a)the E0 for the reactions 2HOCl + 2H+ + 2e- → Cl2 + 2H20 and Cl2 + 2e- → Cl- are 1.63 and 1.396 volts respectively. Write
1. 2 answers
2. asked by Dave
3. 706 views
Two example of social issue. Identify a social issue in your local community and describe it shortly .
1. 4 answers
2. asked by Emely
3. 683 views
A 30 ml sample of of 0.150 m hydrazoic acid (ka = 4.50x10^-4 ) is titrated with a 0.100 m NaOH what is the ph after the ff
1. 1 answer
2. asked by Omi
3. 682 views
Please point out mistakes,give feedback, and grade.ACT prompt: In recent years, many schools have adopted a "Great Books"- based
1. 4 answers
2. asked by Anonymous
3. 671 views
The index of refraction of Ruby is less than the index of refraction of diamond. Why?
1. 1 answer
2. asked by silent_klr
3. 670 views
Yani wants to make a scale diagram of the floor plan of his school. He wants his diagram to fit on an 8.5in. by 11in. sheet of
1. 1 answer
2. asked by Please Help!!!
3. 666 views
What mass in kg of NH3 must be used to produce 4.4 multiplied by 106 kg HNO3 by the Ostwald process, assuming 100% yield in each
1. 1 answer
2. asked by Kris
3. 664 views
The chief financial officer of a home health agency needs to determine the present value of a $10,000 investment received at the
1. 0 answers
2. asked by April
3. 645 views
As you follow your favorite NBA basketball team’s statistics, you notice the point guard is successfully shooting 85% from the
1. 2 answers
2. asked by emma
3. 634 views
The amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does the amplitude of a sound
1. 1 answer
2. asked by Justin
3. 611 views
Please grade this and make corrections.ACT writing prompt: The Children's Internet Protection ACT (CIPA) requires all school
1. 1 answer
2. asked by Anonymous
3. 610 views
1. Explain why you think it is important to put observations in writing. How can observation enrich our writing?2. At what point
1. 4 answers
2. asked by shay
3. 605 views
I am preparing my self for a biology exam and i am going through past papers. Unfortunately they do not supply us with the
1. 1 answer
2. asked by alex
3. 603 views
Ka1 = 4.5E-7 and Ka2 = 4.7E-11 for the carbonate system. Ksp is 5.0E-9 and Kw =1.0E-14. A town’s groundwater has [Ca2+] = 37
1. 0 answers
2. asked by Michele
3. 597 views
Imagine that you are doing research for a term paper in your English class and you have chosen the topic of “expected winnings
1. 0 answers
2. asked by emma
3. 591 views
There are two boxes, each with several million tickets marked “1” or “0”. The two boxes have the same number of tickets,
1. 3 answers
2. asked by Marian
3. 591 views
the sphere of influence of an organization that renders a service in your area.
1. 3 answers
2. asked by masingita
3. 590 views
(a) By what factor is one sound more intense than another if the sound has a level 17.0 dB higher than the other?(b) If one
1. 0 answers
2. asked by Justin
3. 537 views
What is the smallest possible positive integer x>5 , that leaves a remainder of 5 whenever it is divided by 14 , 8 or 77 ?
1. 1 answer
2. asked by KK
3. 531 views
evolutionary psychology and behavior geneticsa. have little in common b. acknoweledge the interactions of heredity and
1. 1 answer
2. asked by meka
3. 524 views
language development is initially triggereda.socially b.psychologically c.biologically d.by parent contact I know that letter d
1. 1 answer
2. asked by susue
3. 517 views
A student was performing an extraction procedure of o-Xylene from water into octanol. The total mass of o-Xylene was 0.10 gram
1. 1 answer
2. asked by Sahara
3. 516 views
A rectangular field has a length that us 2 meters less than 3 times the width. The perimeter is 188 meters. Find the dimensions
1. 1 answer
2. asked by Jim
3. 505 views
I need help figuring this out.If an object 3.9 feet tall casts a shadow 11.7 feet tall. How tall would the shadow be if the
1. 1 answer
2. asked by Alaska Diamond
3. 505 views
If y is a positive integer, for how many values of y is 3/2y greater than 1/4 and less than 1/2?F. 0 G.1 H.2 I. 3 J.4 Check
1. 1 answer
2. asked by Anonymous
3. 500 views
After one month of operation the health information services at community health center determined that there were two reords
1. 2 answers
2. asked by Johnnie
3. 496 views
a famous quotation on child development attributed to the Jesuits most emphasizes the importance ofa.early childhood experiences
1. 1 answer
2. asked by susue
3. 496 views
There are two boxes, each with several million tickets marked “1” or “0”. The two boxes have the same number of tickets,
1. 2 answers
2. asked by Stat
3. 485 views
Find the equation of the line tangent to f(x)=3x^2-2x-1 at the point where x=2
1. 1 answer
2. asked by gerald
3. 477 views
Under what circumstances does it appear that paleolithic humans first used boats?
1. 3 answers
2. asked by Alex
3. 474 views
Carol Miller went to Europe and forgot to pay her $850 mortgage payment on her New Hampshire ski house. For her 55 days overdue
1. 1 answer
2. asked by jeff
3. 474 views
19 cars in a circle at a boom box competition produce a 130 dB sound level at the center of the circle. What is the average
1. 0 answers
2. asked by Justin
3. 469 views
kenny can assemble a desk in 40 minutes while his friend paul can assemble the same desk in 20 minutes. kenny worked for 10
1. 1 answer
2. asked by Algebra
3. 466 views
A statistics student hands each of 300 classmates 2 cookies side by side on a plate. Of the 300 students, 171 choose the cookie
1. 2 answers
2. asked by Kit
3. 459 views
Of the 5,352 requests for medical records, 4,257 were located within the 20-minute time frame established by the supervisor as a
1. 1 answer
2. asked by Karolina
3. 457 views
How do I figure out taxes associated with stock purchased in 2010 for $1000 held for 5 mths. Then sold for $1200 I am in the 28%
1. 1 answer
2. asked by Tricia
3. 457 views
quadratic equationsolve the equation by factorization 27x^2 - 126x = 0 So x=? or x=?
1. 1 answer
2. asked by gean
3. 443 views
A piece of material 15 cm long by 2.5 cm square is in compression under a load 100 kN.If the modulus of elasticity of the
1. 1 answer
2. asked by ripon
3. 440 views
What mass in kg of NH3 must be used to produce 4.4 multiplied by 106 kg HNO3 by the Ostwald process, assuming 100% yield in each
1. 1 answer
2. asked by Kris
3. 431 views
how many popsicles are in 2 1/2 dozen
1. 7 answers
2. asked by loli
3. 430 views
I need help my homework and when I post I don't get an response what do I have to do for someone look at my homework question.Li
1. 2 answers
2. asked by April
3. 427 views
An iorn rod (a=11.8 x 10^-6 C^-1) has a length of 1000 meters(or 1 km) at 0 degrees Celsius. If the rod must expand 10 cm to
1. 1 answer
2. asked by Jason
3. 424 views
Suppose that to land on Free Parking in the game of Monopoly, you will need to roll a 3, and to land on Chance you will need to
1. 1 answer
2. asked by emma
3. 419 views
the main problem with informal theories is they are based on .a.bias b.emotion c. tradition rather than study can someone please
1. 4 answers
2. asked by susue
3. 419 views
Quadratic equationSolve= square root(1-y) + square root(12+y) -5 =0
1. 1 answer
2. asked by Chiew Poh Joong
3. 417 views
There were 100 pairs of socks 30% of them were sold on Monday and 40% of the remainder were sold on Tuesday. How many pairs of
1. 4 answers
2. asked by vincent
3. 410 views
where could an apostrophe be put for plural women 1.women's or womens' pl clarify .
1. 3 answers
2. asked by R S Telagathoty
3. 407 views
a 2.00 kg rock is dropped from a bridge to the water 50.0m below. what is the velocity as it hits the water? what is its kinetic
1. 1 answer
2. asked by hannah
3. 406 views
using simple interest on a loan at 8.4% for one year making monthly payments. Find the APR on a $5000 loan.
1. 1 answer
2. asked by Scott
3. 398 views
Do you think the use of advanced technology like functional MRI will eventually make animal testing obsolete?
1. 1 answer
2. asked by Tise
3. 379 views
Radicals are so confusing. Can someone show me step by step please. Im lost5/8+√7
1. 1 answer
2. asked by Alaska Diamond
3. 368 views
Can someone help me find value of x. please show step by step examples6/x = 7/x+3
1. 1 answer
2. asked by Alaska Diamond
3. 351 views
Hi there,I am a senior trying to get some assistance with one of my many papers. Thank you!
1. 1 answer
2. asked by Anna
3. 349 views
If 3 "A" cans can hold 4 "B" cans and 3 "B" cans hold 5 "C" cans than how many "A" cans are need to hold 20 "C" cans ?
1. 1 answer
2. asked by vincent
3. 347 views
Explain how new species can originate without geographical barriers.
1. 0 answers
2. asked by Annie
3. 337 views
can someone help with this 8x/16x^2=5/x-4 solve
1. 1 answer
2. asked by Cathy
3. 337 views
The direction of magnetic lines of force change if an iron piece is placed in its field. Why?
1. 0 answers
2. asked by silent_klr
3. 328 views
if a skydiver with a surface area of 2m sq falls at a steady speed of 55m/s with a force of 900N what is the pressure on her?
1. 0 answers
2. asked by Anonymous
3. 325 views

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