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Questions Asked on March 20, 2014

The energies, E, for the first few states of an unknown element are shown here in arbitrary units:n= 1, E=-21 n=2, E=-9 n=3,
1. 4 answers
2. asked by tec
3. 33,939 views
1. The following circle graph was published in the Cane County annual report. If there are 1,000 registered voters in Cane
1. 72 answers
2. asked by james
3. 32,421 views
1-Which of the following is not a function of the circulatory system?D-fights infection 2-Which of the following explains why
1. 86 answers
2. asked by Rodco
3. 27,813 views
which three-dimensional figure has all triangular faces?A. triangular prism B. triangular pyramid***i pick B.*** C. rectangular
1. 83 answers
2. asked by matt
3. 18,240 views
Let (7,-3) be a point on the terminal side of theta. Find the exact values of cos of theta, sec of theta and cot of theta?
1. 1 answer
2. asked by Anna
3. 9,071 views
7. A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 46 ft.
1. 30 answers
2. asked by TTR+S<3
3. 6,188 views
I'm totally confused on these?Which is D = 2zv solved for v? A. v= 2z / D B. V= d / 2z c. V = D - 2z D. V=D / Z Which is Q =
1. 19 answers
2. asked by SDog
3. 5,745 views
cos/sin use 2npi and tan uses npi, but how do you know when to add 2npi or npi to the solution of the equation?
1. 5 answers
2. asked by Anonymous
3. 5,293 views
What is a counterexample for the conjecture? Conjecture: The product of two positive numbers is greater than the sum of the two
1. 3 answers
2. asked by ALEXA
3. 5,061 views
Julie Whiteweiler made $930 this week. Only social security (fully taxable) and federal income taxes attach to her pay.
1. 2 answers
2. asked by Shirley
3. 4,929 views
From experience, an airline knows that only 80% of the passengers booked for a certain flight actually show up. If 8 passengers
1. 2 answers
2. asked by george
3. 4,011 views
The diameter of the base of a tapered drinking cup is 6.6cm . The diameter of its mouth is 9.8cm . The path of the cup curves
1. 3 answers
2. asked by James
3. 3,854 views
Calculate the force of friction that keeps a 80-kg person sitting on the edge of a horizontal rotating platform when the person
1. 1 answer
2. asked by Cassie
3. 3,536 views
An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. The
1. 2 answers
2. asked by James
3. 3,503 views
A gas mixture contains 75.2% nitrogen and 24.8% krypton by mass. What is the partial pressure of krypton in the mixture if the
1. 1 answer
2. asked by Anonymous
3. 3,432 views
Which of the following sentences are considered as a description of the terms "active voice" and "passive voice"?"Sentences
1. 5 answers
2. asked by Anonymous
3. 3,403 views
Mulitple choice:why is it uncommon to draw lewis diagrams for ionic compounds? A.) Lewis diagrams can only illustrate covalent
1. 1 answer
2. asked by Anonymous
3. 3,245 views
Find the values of the 30th and 90th percentiles of the data.129, 113, 200, 100, 105, 132, 100, 176, 146, 152 answer: 30th
1. 1 answer
2. asked by Cassie
3. 2,893 views
According to one study, 61% of the population swallow at least one spider per year in their sleep. Based onthis study, what is
1. 2 answers
2. asked by Cassie
3. 2,808 views
Which of the following is TRUE regarding myelination?A) myelination begins prenatally and continues for years after birth. B)
1. 1 answer
2. asked by Lilly
3. 2,791 views
What is the shape of the Earth?
1. 0 answers
2. asked by matt
3. 2,725 views
Which combination of limit properties is required to evaluate this limit?lim x->((24/x)-2x+2)^3 A) sum, difference, product,
1. 3 answers
2. asked by Shawna
3. 2,697 views
A piston has an external pressure of 7.00 atm. How much work has been done in joules if the cylinder goes from a volume of 0.130
1. 1 answer
2. asked by Jamie
3. 2,628 views
Mr.Ricci spent 1/3 of his salary on food and 2/5 of the remainder on transport. What fraction of his salary did he have left? If
1. 2 answers
2. asked by Kate
3. 2,589 views
given the proportion a/b=5/19, what ratio completes the equivalent proportion a/5= / ?a. a/19 b. b/19 c. 5/19 d. 19/b
1. 2 answers
2. asked by heather
3. 2,512 views
Find z such that 7.1% of the standard normal curve lies to the left of z ?
1. 1 answer
2. asked by leia
3. 2,363 views
A Plane flies north at 215 km/h. A wind from the east blows at 69km/h. What is the plane's new velocity with respect to the
1. 3 answers
2. asked by James
3. 2,331 views
CaCO3(s)+2HCl(aq)>CaCl2(aq)+H2O(l)+CO2(g)how many grams of calcium chloride will be produced when 30 g of calcium carbonate are
1. 2 answers
2. asked by YOLANDA
3. 2,309 views
Bob is pulling a 30kg filing cabinet with a force of 200N , but the filing cabinet refuses to move. The coefficient of static
1. 7 answers
2. asked by salar
3. 2,208 views
How much heat is required to completely boil away 0.200 kg of water (Hv = 2.26 × 10^3 kJ/kg)?(Points : 1) 4.52 × 102 kJ 2.26
1. 4 answers
2. asked by Me and I
3. 2,174 views
In a lightning bolt, a large amount of charge flows during a time of 2.2 10-3 s. Assume that the bolt can be treated as a long,
1. 3 answers
2. asked by Anonymous
3. 2,173 views
Calculate the tension in a horizontal string that whirls a 1.9-kg toy in a circle of radius 2.3m when it moves at 2.8m/s on an
1. 1 answer
2. asked by James
3. 2,161 views
Let r(x)= f(g(h(x))), where h(1)=4, g(4)=5, h'(1)=3 , g'(4)=5 and f'(5)=7. find r'(1).
1. 1 answer
2. asked by Tim
3. 2,156 views
How many minutes are required for a radio signal to travel for Earth to a space station in Mars if the planet Mars is 7.83 x 10
1. 1 answer
2. asked by Mark
3. 2,138 views
Calculate the percent yield for an experiment in which 46.9 g of SO3 was produced upon the reaction of 51.2 g of SO2 with 25.0 g
1. 1 answer
2. asked by Anonymous
3. 2,130 views
find the surface area of a square pyramind with a base length of 24cm and a height of 16cm . . . . . . . . A.1056 cm^2 . . . . .
1. 2 answers
2. asked by luna
3. 2,068 views
*the molar solubility of BaCo3 in 0.50M Bacl2 solution IS?ksp(1.6*10^-6)I CALCULATED AND GOT 3.2*10^-9 WANT TO MAKE SURE IF IT
1. 1 answer
2. asked by jessina
3. 2,051 views
What value must be defined for f(4) to remove the discontinuity of thisfunction at x=4? f(x)=(x^2−16)/(x−4) A) 0 B) 4 C) -4
1. 3 answers
2. asked by Shawna
3. 2,025 views
5. Which of the following types of pollution cannot be attributed to car and truck emissions?A. acid rain B. sedimentation C.
1. 10 answers
2. asked by Anonymous
3. 2,010 views
find the lateral area of a cone with a radius of 7ft. and slant height of 13ft, use 3.14 for pi and round the nearest tenth. . .
1. 3 answers
2. asked by luna
3. 1,982 views
find the volume of the cone with a radius of 6in. and a height of 11in. MY ANSWER: 415 in^3 (Is it right?) thank you in advance!
1. 6 answers
2. asked by luna
3. 1,952 views
According to one study, 61% of the population swallow at least one spider per year in their sleep. Based onthis study, what is
1. 0 answers
2. asked by Cassie
3. 1,919 views
television is an attractive advertising medium because itA. Offers mass coverage and flexibility B. is relatively expensive C.
1. 2 answers
2. asked by Dana
3. 1,907 views
A heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium.What is the partial pressure of oxygen when
1. 1 answer
2. asked by Anonymous
3. 1,878 views
How do the kidneys clean the blood? (1 point)• Kidneys clean the blood by breaking down nutrients. • Kidneys clean the blood
1. 2 answers
2. asked by Sandra
3. 1,782 views
find the volume of a square pyramid with a base length of 9cm and a height of 4cm. ANSWER: 108 cm^3 (is it right?)
1. 2 answers
2. asked by luna
3. 1,758 views
A box of mass 5.0 kg starting from rest slides down a 1.8 m long ramp inclined at an angle of 22.0 deg. from the horizontal. If
1. 1 answer
2. asked by Yarielis
3. 1,744 views
A recipe for snack mix has a ratio of 2 cups nuts, 4 cups pretzels, and 3 cups of raisins. How many cups of nuts are there for
1. 1 answer
2. asked by Charissa
3. 1,706 views
a ladder of 10 ft long leans against a vertical wall. the upper end slips down the wall at 5 ft/sec. how fast is the ladder
1. 2 answers
2. asked by hanj
3. 1,637 views
Select the sentence in which all pronouns are used correctly.A. I sat between him and her during the sales conference. B. Just
1. 4 answers
2. asked by Maria
3. 1,624 views
find the surface area of a square pyramind with a base length of 24cm and a height of 16cm . . . . . . . . A.1056 cm^2 . . . . .
1. 1 answer
2. asked by luna
3. 1,614 views
What are the steps involved in conducting a titration using cabbage juice as the indicator?Could you come up with a modified
1. 0 answers
2. asked by Anonymous
3. 1,606 views
1.A5.The word evacuate comes from the Latin root vac which means to empty. What word that contains this root means not occupied?
1. 2 answers
2. asked by matt
3. 1,601 views
A and B agree to share the cost of an $18 pizza based on how much each would eat. B ate 3/2 of the pizza that A ate. How much
1. 2 answers
2. asked by Cassandra
3. 1,591 views
3 pieces of ribbon, each 85 cm long, are cut from a length of ribbon 3 m long. What is the length of the remaining piece of
1. 2 answers
2. asked by Romell
3. 1,534 views
1. Write the chemical formula for each of the following acids:a.) hydrocyanic acid b.) oxalic acid c.) chlorous acid d.) nitric
1. 1 answer
2. asked by Anonymous
3. 1,505 views
A force in the +x-direction with magnitude F(x)=18.0N−(0.530N/m)x is applied to a 7.60kg box that is sitting on the
1. 4 answers
2. asked by gzag
3. 1,455 views
NEED SOMEONE TO RECHECK ANS *****HELP PLEASEHAS STAR BY MY ANSWER If P (A) = 0.2 and P (B) = 0.3 and A and B are disjoint, what
1. 3 answers
2. asked by TIKIMA
3. 1,432 views
When a switch is turned from the off to the on position, it is changing the circuit in which of the following ways?
1. 2 answers
2. asked by toni
3. 1,420 views
Calculate the pH of the solution that results from mixing 30.0 mL of 0.050 M HCN(aq) with 70.0 mL of 0.030 M NaCN.
1. 1 answer
2. asked by Anonymous
3. 1,375 views
Bonita bought 2 and 1/5 kg of potatoes and 1 and 1/2 kg of carrots. How much more potatoes than carrots did she buy?
1. 2 answers
2. asked by Mei
3. 1,328 views
f(x) is a quadratic function such that f(1) = 3 and f(5) = 3. Find the x coordinate of the vertex of the graph of f.
1. 2 answers
2. asked by tania
3. 1,286 views
Consider someone in a rotating space habitat. The outward force felt by the personA.has no reaction counterpart B.is an
1. 4 answers
2. asked by Anonymous
3. 1,254 views
1. A chemist prepares a solution by dissolving4.603 g of NaNO3 in enough water to make 200 mL of solution. What molar
1. 2 answers
2. asked by Bob Ewell
3. 1,252 views
A solenoid is formed by winding 25.3 m of insulated silver wire around a hollow cylinder. The turns are wound as closely as
1. 5 answers
2. asked by Anonymous
3. 1,244 views
A comforter sells for $40 dollars and is marked up 40% of the selling price. What is the cost of the comforter?
1. 1 answer
2. asked by Johnnie
3. 1,206 views
A 115.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 46.0 deg with
1. 3 answers
2. asked by Yarielis
3. 1,182 views
in sunlight, a vertical stick 7 ft tall casts a shadow 3 ft long. At the same time a nearby tree casts a shadow 11 ft long. How
1. 1 answer
2. asked by quannia
3. 1,162 views
find y'' by implicit differentiation.2x^3 + 3y^3 = 8 I got the first derivative as you but the problem was asking for second
1. 1 answer
2. asked by Matt
3. 1,144 views
find y'' by implicit differentiation.2x^3 + 3y^3 = 8
1. 2 answers
2. asked by Matt
3. 1,126 views
A voltaic cell is constructed that uses the following reaction and operates at 298 K: 2 Al(s) + 3 Mn2+(aq) 2 Al3+(aq) + 3 Mn(s).
1. 1 answer
2. asked by Matt
3. 1,119 views
A HYDRAULIC LIFT OFFICE CHAIR HAS ITS SEAT ATTACHED TO A PISTON WITH AN AREA OF 11.2CM2. THE CHAIR IS RAISED BY EXERTING FORCE
1. 2 answers
2. asked by MARQUESE
3. 1,118 views
1. A sports researcher gave a standard written test of eating habits to 12 randomly selected professionals, four each from
1. 0 answers
2. asked by Kimberly
3. 1,094 views
A box of mass 14.0 kg sits on a horizontal steel ramp 4.8 m long with a coefficient of static friction of 0.40 between the ramp
1. 1 answer
2. asked by Marlerne
3. 1,080 views
Choose the sentence that has a subject complement.A. The day ended with many surprises. B. I felt much better. C. The nurse felt
1. 1 answer
2. asked by Piper
3. 1,078 views
An electron undergoes a transition from an n=3 to an n=1 stationary state and red light is released.Which of the following forms
1. 2 answers
2. asked by Ashley
3. 1,073 views
Find the values of the 30th and 90th percentiles of the data.129, 113, 200, 100, 105, 132, 100, 176, 146, 152 answer: 30th
1. 1 answer
2. asked by Cassie
3. 1,073 views
If the average time from one on state to the next one on the first photogate is 0.005 seconds, what is the speed of the cart at
1. 4 answers
2. asked by Ahmed
3. 1,057 views
1.CBut mama told me never mind.She said i didn't need a bracelet to remember laurie,just as i didn't need anything to remember
1. 2 answers
2. asked by matt
3. 1,026 views
A 10-ohm resistor is attached to a 20-ohm resistor in series. This combination is then attached to a 30-ohm resistor in
1. 2 answers
2. asked by Bano
3. 1,018 views
A 60 W light bulb at 120 V is left on in your house to prevent burglary, and the power charges 10 cents per kilowatt-hour, how
1. 1 answer
2. asked by Darlene
3. 1,012 views
The Ksp of tin(II) hydroxide, Sn(OH)2, is 5.45 × 10-27. Calculate the solubility of this compound in g/L.
1. 1 answer
2. asked by Nickcole Jackson
3. 1,004 views
A superhero is trying to leap over a tall building. The function f(x)=-16x^2+200x gives the superheroes height in feet as a
1. 1 answer
2. asked by The doctor
3. 982 views
If the speed of the cart at the first photogate is 2.3 m/s, and the speed of the cart at the first photogate is 1.8 m/s, what is
1. 2 answers
2. asked by Ali
3. 981 views
1. It is noisy outside.2. It is too noisy and we can hardly hear each other. 3. It is too noisy for the man to sleep. 4. There
1. 1 answer
2. asked by rfvv
3. 942 views
If boys and girls are equally likely and groups 400 births are randomly selected find the standard deviation
1. 2 answers
2. asked by Anonymous
3. 937 views
Handy Enterprises has gathered projected cash flows for two projects.Year Project I Project J 0 –$215,000 –$215,000 1
1. 1 answer
2. asked by Alec
3. 937 views
walking at 3/4 of his usual speed,a man is late by 2.5 hrs. What is he usual time?
1. 3 answers
2. asked by LARA
3. 936 views
Which statement is true for any linear system of two equations in two variables?A) The system is independent if the slopes of
1. 1 answer
2. asked by Shawna
3. 920 views
8.C8.Which of the following details supports the main idea that Pa worked hard to try to feed his family? A.Pa and I walked,
1. 1 answer
2. asked by matt
3. 908 views
You borrow $2,000 at a rate of 3% for a period of 4 years. How much will you re-pay at the end of 4 years?This is a 7th grade
1. 2 answers
2. asked by SDog
3. 890 views
Isaiah walks 3 miles due north, turns and then 5 miles due east. How far is he from his starting point?
1. 1 answer
2. asked by lol
3. 875 views
Evaluate the improper integral or state that it diverges: integral from 6 to infinity (1/t^2-5t)dt. I need help on solving this
1. 3 answers
2. asked by diana
3. 872 views
When two resistors are connected in series across a 12-V battery, 1.1A flows. When they are connected in parallel across the
1. 1 answer
2. asked by Bano
3. 859 views
Mrs. Meier had 3/5 kg of sugar. She used 1/4 of it to make cookies. How much sugar did she use to make the cookies?
1. 1 answer
2. asked by Angel
3. 857 views
The first two terms in the expansion of (1+ax/2)^10 + (1+bx)^10 in ascending powers of x., are 2 and 90x^2Given that a is less
1. 3 answers
2. asked by Ellie
3. 856 views
500 ml of a buffer solution with ph=2.10 must be prepared using .4 M HNO2 and solid KNO2. The ka value of HNO2 is 4e-3.a.) What
1. 1 answer
2. asked by Anonymous
3. 845 views
The mechanism for NH2NO2=N2O+H2O occurs in three steps:step 1: NH2NO2=NHNO2- + H+ (forward and reverse reactions are fast) step
1. 1 answer
2. asked by Anonymous
3. 836 views
estimate the value of a)4312 divided by 6 and b) 7134 divided by 82
1. 12 answers
2. asked by Adam
3. 825 views
who wrote the song bobby magee. who sang the origional version of this song. In what year did the song become popular
1. 1 answer
2. asked by sandra
3. 823 views

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