Friday
December 2, 2016

# Posts by Jj

Total # Posts: 1,030

Algebra 2
Complex numbers are written in the form a + bi. What does i represent? -1 0 1 sqrt-1 **my choice
November 30, 2016

The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusions could be made? I could use some help here can anyone help me give me an answer or a link of some sort? Thanks
November 15, 2016

Physics
A 1340-kg car traveling east at 13.6 m/s (20 mi/h) has a head-on collision with a 1930-kg car traveling west at 20.5 m/s (30 mi/h). If the collision time is 0.10 s, what is the force needed to restrain a 68-kg person in the smaller car? In the larger car? I understand how to ...
November 14, 2016

Math
determine whether the graphs of the following equations are parallel or perpendicular y=2/3x + 3, y=3/2x, 2x-3y=8
November 12, 2016

math
Drawing a picture for this problem creates two similar triangles, you simply have to use the given ratio from the first triangle to find the height of the tree, so 1.6/4=x/12. Cross-multiplying gives us (1.6)(12)=4X, Therefore, x=((1.6)(12))/4
November 4, 2016

Algebra
During a science experiment, Nico created a 32%alcohol solution by mixing 8 fluid ounces of a 50% alcohol solution with a certain amount of an 8% alcohol solution. How many fluid ounces of the 32% alcohol solution did he create?
November 4, 2016

Physics
A child saw a skunk in a hole of a tree, standing 2.5m away. The child attempted to throw a pebble into the hole, but missed with a speed of 11m/s. Angle of elevation is 75 degrees, what was the Vfy of the pebble?
October 17, 2016

Physics
A girl tried to overthrow gender stereotypes by kicking her stuffed animal across a park with an initial velocity of 25m/s, making an angle of 45 degrees with the horizontal. Upon reaching maximum height, her cat jumped and propelled it further horizontally with a velocity of ...
October 17, 2016

7th Math
If there are 16 dark blue triangles,then how much fabric was used if each leg is 10 cm and the hypotenuse is 14.2 cm long? 10+10=14.2?
October 12, 2016

environmental science
October 12, 2016

environmental science
Ecologists designed an experiment to determine if nitrates or phosphates are more limiting to algae growth. They divided a lake in Canada into two equal-sized sections by a vinyl curtain. Then they fertilized each sub-basin of the lake, one with nitrates and carbon, and the ...
October 12, 2016

environmental science
the warming of the oceans causing less carbon dioxide to be soluble in them, and at the same time leaving more carbon dioxide in the atmosphere causing an increased warming of the atmosphere, is a example of a a. model of a system showing a paradigm shift. b. negative feedback...
October 12, 2016

environmental science
1. which of the below is an example of high-quality matter found near the earth's surface? a. natural gas b. mine tailings c. bauxite (al ore) d. recyclable materials in a landfill e. nitrogen gas in the atmosphere
October 12, 2016

math
trey can clean a room in 40 minutes. his brother Marcus can clean the same room in 20 minutes. how long will it take them to clean the room if they work together?
October 10, 2016

Show how to make one addend the next tens number. Complete the new addition sentence 26+27=? Is it 53 (10+43=53)
October 4, 2016

Social studies
September 28, 2016

grammar
Jf Kennedy was a senator before he president in 1960. became hi my friends ,is that right w became
September 13, 2016

Math
The number of washers 3/32 inch thick that can be cut from a piece of stock 25 1/2 inches long, allowing 1/16 inch for waste for each cut is A) 160 B) 163 C) 260 D) 272 E) 408 Pls help and explain x
August 18, 2016

Government
Bills that originate in either house of Congress may be A. Introduced only by party leaders B. Formulated by private citizens C. Introduced by private citizens D. Introduced by the president
August 1, 2016

Calculus
divide 64 into two parts such that the product of one of them plus the cube of the other is a maximum
July 28, 2016

algebra
a-6 a-1÷a+2
June 12, 2016

Language arts
June 6, 2016

language arts
Joe magarac, Man of steel 8. In section 1, what does the author mean when he says joe magarac is a folk hero? A. Joe was a real man who spent his whole life in the steel mills of Pittsburgh. B. Joe was a mysterious figure who vanished without a trace.* C. Joe was a legend ...
June 2, 2016

Math
If a pulse is 20 beats in 15 second what is the pulse for 1 min.
May 25, 2016

career
Matching these ones I really don't have a clue so if you could help here it would be nice but if not I understand Match the following terms with their definitions. A. using the connections among people to help one another reach important goals B. personal readiness and ...
May 17, 2016

ss
No, if you look at them you see that they are correct. Or did you submit these answer and they were wrong. I think I need proof before I believe you. I went to another site and looked, and they were correct. That is after I did the quiz.
May 11, 2016

Math
which polynomial does the model represent (Model shows: 1 big black square, 2 long blank rectangles, 3 long rectangles, 3 small blank squares, 1 small blank square) a.) -x^3+2x^2-3x+2 b.)x^2+x-2 c.)-x^2-x+2 d.)-x^2+x-2
May 10, 2016

Math
Write and simplify the polynomial represented by the model. (Model shows: 3 big blank squares, 2 long black rectangles, 3 small blank squares, 1 big black square, 6 small black squares) a. -2x^2 + 2x + 3 b. 2x^2 - 2x - 3 c. 3x^2 - 2x - 3 d. 2x^2 - 2x + 3
May 10, 2016

Science test review
Here are all the word you can use I need help chemical property mixture heat capasity homogeneous viscosity sublimitation physical property compound chemical formula substance density mass tempurature pressure heterogenerous 14. A property of matter describes its ability to ...
May 2, 2016

science
kendra was looking at recipes in a cookbook. she divided some of the steps of a recipe into two columns. How would you label each column? A.) Column A shows sublimation; column B shows vaporization B.) Column A shows vaporization; column B shows sublimation C.) Column A shows ...
May 2, 2016

science
how do liquid water, ice, and water vapor differ from one another? A.) They are different states of matter B.) They are different compounds C.) They are made of different kinds of molecules. D.) They are mad of different kinds of atoms.
May 2, 2016

science
Thermal energy is caused by motion of? 1. mixing water molecules contained in a beaker 2. molecules in soild liquid and gas phases 3. mixing molecules together 4. molecules that have reached equilibrium the density of an object with the volume of 60.0 mL and a mass f 400.0 g ...
May 2, 2016

history
What is the biggest secret if jose rizal??
April 20, 2016

Environmental History
I know it is not B. It was marked wrong.
March 17, 2016

Environmental History
A Primary source is: a) the main source that a historian uses in a given book. b) someone interviewed for a story on the Iowa caucuses. c) an especially reliable historical text. d) a record that historians use to understand a past time period.
March 17, 2016

chemistry
how many grams of silver carbonate will precipitate when excess ammonium carbonate soln is added to 41.0 mL of a .518 M silver nitrate solution?
March 12, 2016

Algebra
Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression to model its age in dog years. [Hint: Use (x-2) in each expression.] the dogs are 2yrs: 23 yrs old 3yrs: 27 yrs old 4yrs: 31 yrs old 5yrs: 35 yrs ...
March 1, 2016

Physics
A 20.0 kg block is connected to a 30.0 kg block by a string that passes over a light, frictionless pulley. The 30.0 kg block is connected to a spring that has negligible mass and a force constant of 260 N/m, as shown in the figure below. The spring is unstretched when the ...
February 27, 2016

precalc
The point (3, -4) is on the terminal side of an angle(theta) . What is cos(theta)
February 16, 2016

Math
find p so that the numbers 7p+2, 5p+12, 2p-1...... form an arithmetic sequence
January 29, 2016

math
two airplanes travelling in opposite directions , leave an airport at the same time. if one plane averages 480 ml/hr and the other averages 520 ml/hr, how long will it take before they are 2000 ml apart?
December 11, 2015

Algebra 2
Thank you
November 24, 2015

Algebra 2
Make predictions about how many times the graph of each equation below will touch the x axis. You may first want to rewrite some of the equations in a more useful form.=(x-2)(x-3). A. y=(x+1)^2 B. y=x^2+6x+9 C. y=x^2+7x+10 D. y=x^2+6x+8 E. y=-x^2-4x-4
November 24, 2015

Math
7 and 8 tons
November 11, 2015

English index
What topic is disoussed on page-297
November 9, 2015

Biology
It simple
October 30, 2015

Plz help @Reed
For all reading now.. after submitting the test.. the correct answer was that they were interested and informed regarding politics.
October 23, 2015

Algebra 2
Give one example of a situation where you would make a discrete graph and an example of when you will se a continuous graph.
October 21, 2015

Physics
The electric field at a distance of 0.150 m from the surface of a solid insulating sphere with radius 0.367 m is 1720 N/C . Assuming the sphere's charge is uniformly distributed, what is the charge density inside it? Calculate the electric field inside the sphere at a ...
October 3, 2015

Physics
Two passenger trains are passing each other on adjacent tracks. Train A is moving east with a speed of 35.5 m/s, and train B is traveling west with a speed of 33.4 m/s. (a) What is the velocity (taking due east to be the positive direction) of train A as seen by the passengers...
September 11, 2015

Math
I really need help.
August 31, 2015

Math
Explain how you can use a straightedge and a compass to construct an angle that is both congruent and adjacent to a given angle.
August 31, 2015

6 right?
July 30, 2015

Ms. Sue, why couldn't you divide 10/3.5 and 8/2.5 instead?
July 30, 2015

Algebra1
Can you explain to me why? Thanks!
July 20, 2015

Algebra1
John is working the function s(x). He found that s(2)=-6 Matthew is working with the function t(x). He found that t(2)=-6 The point (2,-6) lies on the graph of s(x) and t(x). True or False?
July 20, 2015

Algebra1
It's 7=7. So it does represent line l, right?
July 20, 2015

Algebra1
Consider the point (5,7) which lies on line l in the coordinate plane. Could y=7/5x represent line l?
July 20, 2015

Geology
True or False: Longshore drift is the movement of sediment sideways down the shoreline.
July 15, 2015

physics
a gun converts 200J of stored energy into kinetic energy of the 0.02kg bullet. What is the speed of the bullet as it leaves the gun? If the gun is fired straight up, how high will the bullet go?
April 23, 2015

physics
A 25 gram arrow fired from a bow has a speed of 80m/s. The energy in the arrow came from work done by the bow that acted over a 1m "draw" distance. What average force acted on the arrow over this distance?
April 23, 2015

Chemistry
What is the volume of 2.0 moles of an ideal gas at 290 K and 2.8 atm?
April 21, 2015

math
1,384,500
April 10, 2015

math
If r = 7 m then d = what c = what
March 1, 2015

math
Ur mom
January 10, 2015

MATH
Suzanna needs a board that is at 3.5 meters long. is the board long enough Explain
December 14, 2014

math
Suzanna does not have a ruler but she has a several books that is 17 centimeters tall. Suzanna lays the books end to end and finds tat the board is the same length as 21 books. How many centimeters long is the board
December 14, 2014

Math
What fraction equals 1/2
November 25, 2014

jj
you are a manufacturer of antacids. you could use either mg (oh)2 or al(oh)3 in your formulation. you can buy either of these for \$2.00 per pound . which of these will provide a better product (i.e., give more relief) for the same amount of money ? explain your answer
November 13, 2014

math
most of them are i think
November 11, 2014

algebra
Suppose y varies directly with x. Write an equation relating x and y. 645-09-05-00-00_files/i0130000.jpg a. y = 6x c. y = 7x b. y = x d. y = − x
November 6, 2014

chemical calculations
Brine from a first tank runs into a second tank at 2 gallons per minute and brine from the second tank runs into the first at 1 gallon per minute.Initially,there are 10 gallons of brine containing 20 lb of salt in the first tank and 10 gallons of fresh water in the second tank...
November 6, 2014

Science
thanks
October 28, 2014

Science
How might genetically engineered crops help people in hash climates?
October 28, 2014

pyhsics
A man drops a rock off the side of a cliff, and hears it hit the bottom 2.8 seconds later. If the average speed of sound is 335 m/s, how high is the cliff? I have been able to figure out this much, but I don't know how to solve the problem with the data that I have been ...
October 24, 2014

english
the speaker in birches compares the boy's climbing to
October 21, 2014

Algebra2
so on 2^7i list i as -1 seven times equals out -1 or -i then what i still cant solve i^100
October 16, 2014

Algebra2
write a equation of a line that is perpendicular to y=-2/3-5 and goes through -4,3
October 16, 2014

Algebra2
so on 2^7i list i as -1 seven times equals out -1 or -i then what i still cant solve i^100
October 16, 2014

Algebra2
2i^7 i^42 i^100
October 16, 2014

Physics
A golf ball was launched at 35.0m/s at an angle of 35.0 degrees above the horizontal a) determine the horizontal and vertical components of the balls velocity b)how long was the ball in the air c) how far did the ball go d) what was the maximum height
October 15, 2014

physics
A particle of mass 7.7 × 10-8 kg and charge +11 μC is traveling due east. It enters perpendicularly a magnetic field whose magnitude is 4.2 T. After entering the field, the particle completes one-half of a circle and exits the field traveling due west. How much time...
October 12, 2014

statistics
For the data in question 13, find the raw scores that correspond to the following: (a) z 5 11.22; (b) z 5 20.48.
October 12, 2014

Math 1
write an equation that represents the following situation. Let x= the number of adults. Your equatin should start with "1220=" and use x as the only variable.. The number of students attending the fall play was 150 more than the number of adults attending. A total of...
October 1, 2014

english
Maria is going to take extra courses at the university in math her favorite subject.
July 3, 2014

Government
A(n) _________________________ differs from a direct democracy in that only a small number of elected representatives actually vote on a specific issue
June 19, 2014

That's okay! Thank you for you help Ms. Sue. I appreciate it :)
May 21, 2014

How are Eliezer and the Rabbi’s son who abandons his father on the way to Buchenwald similar? They do not respond when their fathers need them.<--------- They are unable to abandon their fathers. They regret their feelings of resentment toward their fathers. They grow...
May 21, 2014

According to the author, it is difficult for people to comprehend what when on at Auschwitz because the events are so terrible that readers have never experienced anything similar. <----- the events happened long ago and have been forgotten. the survivors and their families...
May 21, 2014

Science
I agree. 2 is a and 1 is d. I took the same test. :-D
May 20, 2014

Math Solve for X?
Solve for x. (5x^2 - 12x) / (x^2 + 5x - 24) <= 0
May 13, 2014

Geometry
Point C is located at (1, 2) and point D is located at (−4, −2). Find the x value for the point that is 1 over 4 the distance from point C to point D.
March 26, 2014

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