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Erika

Questions (211)

how many days is on March 14, 1879-April 18, 1955?
1. 2 answers
2. 288 views
Andrew Jackson’s reaction to the decision in Worcester v. Georgia indicates that Jackson defended federal power
1. 0 answers
2. 614 views
New political parties, the Whigs and the Democrats, formed as a result of conflict between?
1. 0 answers
2. 403 views
How would you represent the length and the width of the new rectangle that will be formed?
1. 1 answer
2. 383 views
In this image, contrast was created by
1. 11 answers
2. 1,873 views
Jessica drove at an average speed of 55 mi/hr from her home in Boston to visit her sister in Atlanta. She stayed in Atlanta 10
1. 1 answer
2. 506 views
Given the following equation : 2Al+6HCl 2AlCl 3 +3H 2 If 3.00 grams of H 2 were produced, how many grams of Al reacted ? (Molar
1. 4 answers
2. 6,251 views
The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT/dt = -k(T - A), where T is the temperature of
1. 4 answers
2. 5,461 views
You are a health information professional closely involved with risk management at General Hospital, a teaching institution.
1. 1 answer
2. 1,486 views
I am between 20 to 30.when u put me into 5 equal group, there is an odd number in each group and one is left over.what number am
1. 3 answers
2. 1,782 views
Solve the following using system of equations. The sum of three numbers is 26. The middle number numerically is one more than
1. 2 answers
2. 767 views
Help!!!!! What does the Quote "In winter I plot and plan, In spring I move" mean.
1. 1 answer
2. 931 views
T/FThe absorption lines of neon occur at slightly different wavelengths than its emission lines. My answer: I thought that they
1. 1 answer
2. 629 views
T/FThe absorption lines of neon occur at slightly different wavelengths than its emission lines.
1. 2 answers
2. 608 views
please if anyone could help me with thisquestion: 1. A class paid $20 for a cake and $4 per child for one slice of cheese pizza.
1. 3 answers
2. 632 views
PLEASE TELL ME THE ANSWER TO "blank 569 divided by 6 is about 400!!!!!!!!"WHAT IS THE BLANK?!!?!?!?
1. 2 answers
2. 922 views
The mutual gravitational attraction between two masses in space is 686 Newtons. What is the new gravitational force between
1. 1 answer
2. 611 views
PhysicsA scientific instrument weighing 98 pounds on the Earth is transported to another planet whose mass is 1.7 Earth masses
1. 1 answer
2. 552 views
4) Which of the following did not account for the development of the cattle industry in the 1870s & 1880s?a) growth of a
1. 2 answers
2. 944 views
Sinx=e^y , 0 <x <pi, what is dy/dx in terms of x?
1. 2 answers
2. 729 views
For what value of k will x+k/x have a relative max at x=-2
1. 1 answer
2. 850 views
What are the equivalent fraction and decimal for 33 1/3%?A. 1/33 and 0.3 B. 1/33 and 3 C. 3 1/3 and 0.333333 D. 1/33 and
1. 5 answers
2. 1,433 views
If you can measure the length and width of a rectangle correct within .1cm then the calculateday area will be correct .1cm as
1. 1 answer
2. 498 views
Evaluate the following integral using a geometric formulaIntegral of -2 to 6: |x-1|dx
1. 1 answer
2. 439 views
Use the second fundamental theorem of calculus to find F'(x)F(x)=The integral from 0 -> x^2 (Sin(x)^2)dx
1. 1 answer
2. 860 views
Find the average value of the function over [1,3] and all values of x in the interval for which the function:f(x)= 4(x^2+1)/x^2
1. 1 answer
2. 527 views
Let r'(t) represent the rate of growth of a dog in pounds per year. What does r(t) represent?What does integral of 2 to 6 r'(t)
1. 1 answer
2. 2,829 views
Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer
1. 1 answer
2. 1,067 views
How many formula units are in 1.31 mg ofhydrogen peroxide (H2O2)? Answer in units of formula units. For 508 g of butadiene
1. 1 answer
2. 1,358 views
How many molecules are in 24.0 g NO2?Answer in units of molec.
1. 1 answer
2. 635 views
How many molecules are in 0.0700 mol NH3?Answer in units of molec.
1. 1 answer
2. 601 views
How many molecules are contained in 1.30mol O2? Answer in units of molec.
1. 2 answers
2. 854 views
How many grams do 6.2×1024 atoms of argonweigh? Answer in units of g.
1. 1 answer
2. 885 views
A pot containing 500 g of water at 100 degrees Celsius would require how much energy to boil off completely
1. 0 answers
2. 496 views
How do you find the Ka1 and Ka2 of oxalic acid when it is in a solution that is 1.05 M H2C2O4 and has a pH of 0.67. [C2O4^2-] =
1. 1 answer
2. 2,301 views
A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 17.0 m/s when the
1. 1 answer
2. 889 views
I'm trying to find the sum of this geometric series but I can't find a common ratio. How do I find it?1+1/5+1/25+...
1. 1 answer
2. 752 views
I'm trying to find the sum of this geometric series but I can't find a common ratio. How do I find it?1+1/5+1/25+...
1. 2 answers
2. 500 views
I've been try to solve this equation and I can't seem to get far. Do you add 3 to both sides? If not please explain to me how
1. 1 answer
2. 360 views
isobutyl tert pentyl acetylene has how many hyrogen atoms?iso=2 butyl=4 tert=4 pentyl=5 acetylene=2 28 h atoms? can you please
1. 1 answer
2. 508 views
evaluate the number of carbon for the ffg. pairs by writing G if greater, L if less than or E if equal1. butene E sym
1. 1 answer
2. 466 views
morgan saw 10 blue cars 8 red cars and 42 white cars drive by her house in 1 hour what is the experimental probability that the
1. 6 answers
2. 3,594 views
Pick any single digit number. Multipy it by 12,345,679. Then multiply the result by 9. What happens? Explain why this works.
1. 0 answers
2. 550 views
John and Miles each had some money. First Miles gave John a quarter. Then John gave Miles one-third of his money. Then Miles
1. 0 answers
2. 470 views
After dinner, three friends at a restaurant paid their bill and noticed a bowl of mints on the front counter. Sean took
1. 2 answers
2. 4,922 views
Three boxes each contain a number of billiard balls. One box contains only even-numbered balls, one box contains only odd
1. 1 answer
2. 1,526 views
A 6 story building has stairs between equally spaced doors. How many times higher is the climb from the first to the sixth floor
1. 1 answer
2. 539 views
Suppose in a town three-fourths of the men are married to one-half of the women. What is the ratio of men to women in this town?
1. 1 answer
2. 547 views
Suppose in the early 1900s the levels of CO2 in the atmosphere was only 64% of the levels of CO2 today. What percentage more is
1. 3 answers
2. 592 views
A mixture is 20% red paint, 35% yellow paint, and 45% water. If 5 quarts of red paint are added to 20 quarts of the mixture,
1. 2 answers
2. 1,428 views
A jet pilot is making a 1000 mile trip in her military Tomcat. She flies 800 mph for one hour and decides she wants to finish
1. 3 answers
2. 529 views
If a field has perimeter P, what shape maximizes the area? Justify your reasoning.
1. 4 answers
2. 449 views
Explain why the product of any two consecutive natural numbers is even. Prove your conjecture.
1. 1 answer
2. 861 views
Find all pairs of integers such that when they are added they equal 100, and when they are multiplied they are at least 2000.
1. 1 answer
2. 1,034 views
Pick what age you would like to be (may be your actual age if you like). Add 10.Multiply the result by 4. Add 200. Divide by 4.
1. 2 answers
2. 624 views
What is 100^2-99^2+98^2-97^2+96^2-95^2 +...+ 4^2-3^2+2^2-1^2 ?(Find an expression where n is the largest number being squared,
1. 1 answer
2. 447 views
In a group of 9 coins, one is fake and weighs slightly less. What is the fewest number of times you need to use a pan balance to
1. 1 answer
2. 647 views
Find the remainder when 3^997is divided by 5. n=1 3n/5=3/5 n=2 3^2=9/25 n=3 3^3=27/5 n=4 3^4=81/5 n=5 3^5=243/5
1. 2 answers
2. 483 views
Randy had a sheep that started eating more and more as each day passed. on the first day, Tandy's sheep ate 5 carrots. On the
1. 1 answer
2. 648 views
A1 Helicopter in flight with unbalanced storesA helicopter in forward flight is shown in Figure 1. The helicopter in forward
1. 0 answers
2. 655 views
You swing a 2.40kg stone in a circle, using the full length of a thin 60.0cm rope.
1. 1 answer
2. 789 views
In what size populations might you expect it to be relatively common for alleles to become fixed? Why?I think that larger
1. 1 answer
2. 657 views
Next year (sophomore year) I'm taking the following courses:Honors Algebra II/Trig Spanish III Health AP Biology Honors English
1. 3 answers
2. 883 views
How would you start and finish these questions by a step by step process? Does Amp equal to Joules?1. How many grams of aluminum
1. 1 answer
2. 612 views
Pleistocene mammoth bone from La Brea Tar Pits of Los Angeles, California. Age: 12,200 ± 35 years
1. 1 answer
2. 613 views
I'm using chromatography to identify compounds in a leaf extract for a lab, and one of the evaluation questions is 'Suggest a
1. 2 answers
2. 542 views
a compound containing
1. 1 answer
2. 283 views
Jon makes a bar graph that shows the number of dogs owned by members of his class. if the smallest number is 1 and the largest
1. 1 answer
2. 497 views
I'm doing a French crossword puzzle, and I'm stuck on one of the words.It's a four letter word like: _a_d And it fits in the
1. 6 answers
2. 677 views
How do you translate:"May I ask some questions?" into French with correct grammar?
1. 1 answer
2. 799 views
What is the translation of "Comment s'appelle ce terrain de camping"? I know that the literal translation is, "How do you call
1. 5 answers
2. 623 views
What is the English translation of:Que veut dire VTT?
1. 6 answers
2. 665 views
find the indefinite integral of(1/x)*(e^(-2log[ 3,x])) dx where 3 is base of the log i cannot even figure out where to start :(
1. 1 answer
2. 2,423 views
Find f'(x): (abs(((x^2)*((3x+2) ^(1/3)))/((2x-3)^3))So I thought I should split it into two parts: A and B. A) (x^2)/((2x-3)^2)
1. 2 answers
2. 592 views
Can you check this pleasei'm not sure why it's wrong .__. 1) indefinite integral of 1/t *ln(t) dt the t*ln(t) is altogether on
1. 5 answers
2. 539 views
Hello!Could someone please read this report on my trip to Paris, and correct it? Thank you! Mon voyage en France était très
1. 3 answers
2. 616 views
Just a quick question...how do you do futur proche in French?
1. 3 answers
2. 492 views
It takes pipe A 14 days to fill the fish pond. It takes pipe B 18 days to fill the same pond. Find out how pond it takes both
1. 1 answer
2. 765 views
A group of hikers hears an echo 2.50 s after shouting. If the temperature is 20.0°C, how far away is the mountain that
1. 1 answer
2. 737 views
The range of human hearing extends from approximately 20 Hz to 20,000 Hz. Find the wavelengths of these extremes at a
1. 0 answers
2. 724 views
A sound wave has a frequency of 686 Hz in air and a wavelength of 0.50 m. What is the temperature of the air?-Find wavelengths
1. 0 answers
2. 578 views
A sound wave has a frequency of 686 Hz in air and a wavelength of 0.50 m. What is the temperature of the air?
1. 0 answers
2. 1,099 views
When did the First Crusade start & end? Like as in the exact date? I can't seem to find it in any of my information books or
1. 2 answers
2. 510 views
what is the gravitational potential energy of an object to its weight multiplied by its what?
1. 1 answer
2. 487 views
figure 1HO- ######## # # # # # # # # # # HO-# # # #-CH=CH-NH2 # # # ###### # # # ######## BENZENE RING what is the name of this
1. 2 answers
2. 447 views
Explain what the terms chiral atom and chiral molecule mean.write in three sentences.thanks
1. 1 answer
2. 1,054 views
Should environmental policy focus on developing more oil resources or on developing renewable energy sources? Or, is there
1. 2 answers
2. 434 views
Should environmental policy focus on developing more oil resources or on developing renewable energy sources? Or, is there
1. 2 answers
2. 415 views
A roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 m/s. Using conservation of
1. 0 answers
2. 412 views
The maximum possible efficiency of a heat engine which exhaust its heat at a temperature of 46.0o is 39.0 percent. What is the
1. 0 answers
2. 1,187 views
A heat engine operates between two reservoirs at temperatures of 19.7oC and 294oC. What is the maximum efficiency possible for
1. 0 answers
2. 640 views
Initially 1.200 mol of an ideal gas in a container occupies a volume of 3.50 l at a pressure of 3.30 atm with an internal energy
1. 0 answers
2. 616 views
A 50.0 Kg ball rolling at 10.0 m/s eastward (on a frictionless surface) collides with a 20.0 Kg ball rolling westward at 20.0
1. 0 answers
2. 470 views
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the
1. 1 answer
2. 1,274 views
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the
1. 1 answer
2. 545 views
An object with a mass of 50 kg is being dragged along a horizontal floor by a horizontal force of 30 N. If the friction force
1. 1 answer
2. 594 views
how many moles of Cl in 2.7 mol CaCl2
1. 1 answer
2. 964 views
A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine?
1. 1 answer
2. 599 views
Find the horizontal and vertical components of the velocity of a cannonball 4 seconds after being fired horizontally at 400 m/s
1. 1 answer
2. 683 views
A student answered the following skill-testing question to try and win a prize:(-4)^3-(-2)^4/2^2+5^2*7^0 The students answer was
1. 1 answer
2. 454 views

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