Posts by jj
Total # Posts: 1,120

English
For an English project, I have to create a Utopia. I am having some trouble coming up with a name for my Utopia. Does anyone have any Ideas? Thanks! 
Math
Verify Cos(A)=Sin(B)  was it right

geometry
11 11â€‹foot ladder is placed against a vertical wall of aâ€‹ building, with the bottom of the ladder standing on level ground 7 7 feet from the base of the building. How high up the wall does the ladderâ€‹ reach?  I don’t know how to solve this problem
 B?

math
on a loan of $3700 a person pays back $430 monthly over 4 years. how much interest was paid on the loan? show ur work A) 20640 B) 16940 C) 2410 D) 1720  so is it excretory

p.e.
without this system in your body you would really get sick because toxins and wastes would build up. 1. cardiovascular 2. excretory 3. intugumentary **** 4. muscular  I think it's C

Matrices
Prove that ab=(a,b)[a,b]  I think its 72440 that make it divisible can you chek if im right.

Math
Find the digit that makes blank 2440 divisible by 9 test help im behind allot help.  What is the value of 14 – a2 given a = –3? A. 23 B. 11 C. 8 D. 5

math
What is the value of 14 – a2 given a = –3? 
physics
Given the graph below with the initial velocity, vi = 8 m/s, the object starts with one value of constant acceleration and stops at 2.3 seconds. Then, the value of its acceleration changes to a different acceleration. Finally, at t1 = 6.8 seconds, it travels at a constant (... 
social study
why were the islands shown on this map most likely acquired or annexed by the united states  I'm trying to find ____ liters carbon dioxide

Chemistry
what volume of carbon dioxide is produced when 49.7g of calcium carbonate reacts completely according to the following reaction at 25C and 1atm? 25C=298K R= 8.31441 J K1 mol1 101325 x V= 49.7x8.31441x298 V= 49.7x8.31441x298 101325 =1.2153 m3 Please help am I even on the ... 
Science
You digestive system has three main functions: digestion, absorption, and elimination. In which organ does absorption begin? A. Mouth*** B. Stomach C. Small Intestine D. Gall bladder  so are the number 14 to 23 all wrong'

math
A prism is completely filled with 96 cubes that have edge length of 12 cm. What is the volume of the prism? 
math
4/5+3/5  16cm

physics
Explain in a few words why, when operating a garden hose fitted with a triggeroperated nozzle, the water jet is momentarily more powerful at the instant the trigger is squeezed than later, when there is a continuous stream of water. Show that the amount of power in the water ... 
Math
A sphere has a radius of 16 cm and a plane passes thru it at 9 cm below the center, what is the area of the intersection between the plane and the sphere?  free lunch

social studies?
I need help with my homework. I have to evaluate free school on: Effectiveness Efficiency Equity  Which source is the best to follow if you were looking to buy a facial and message spa package for your mom for Mother's Day?
 thank you got a 4/4 got a hundred thank you willow robot and searcher

chemistry
if 3.15g of mercury are thermally decomposed to mercury and oxygen what mass of mercury will be produced and how many oxygen molecules will be produced [hg=208,o=16]  hh

Algebra 2
Complex numbers are written in the form a + bi. What does i represent? 1 0 1 sqrt1 **my choice  thaks got 100
 what

Social studies connexus 8th grade
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  Thanks

Physics
A 1340kg car traveling east at 13.6 m/s (20 mi/h) has a headon collision with a 1930kg 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 68kg person in the smaller car? In the larger car? I understand how to ... 
Math
determine whether the graphs of the following equations are parallel or perpendicular y=2/3x + 3, y=3/2x, 2x3y=8  I agree this whole unit is a little disturbing. Lun is wright, the answers are D B C A
 d
 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. Crossmultiplying gives us (1.6)(12)=4X, Therefore, x=((1.6)(12))/4

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?  thanks lun your so cool and so smart you helped me so much I love you<3

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? 
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 ... 
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?  4. my answer is B

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 equalsized sections by a vinyl curtain. Then they fertilized each subbasin of the lake, one with nitrates and carbon, and the ... 
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... 
environmental science
1. which of the below is an example of highquality 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 
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?  Who is right? Savanna or Spooky?

2nd grade math
Show how to make one addend the next tens number. Complete the new addition sentence 26+27=? Is it 53 (10+43=53)  Help pleasee
 Answer?
 a?

grammar
Jf Kennedy was a senator before he president in 1960. became hi my friends ,is that right w became  1.b 2.a 3.c 4.a 5.a 6.c 7.a 8.b 9.a

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 
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 
Calculus
divide 64 into two parts such that the product of one of them plus the cube of the other is a maximum  You have five friends. A serving of ice cream is 3/4 cups. How many cups of ice cream would it take to feed all five of your friends?

algebra
a6 a1÷a+2 
Language arts
. This question asks about your work in your reading role. You may use your novel to help you answer the question. Think about the work you completed in your reading role. Determine the ideas that would be most worthy to share in a literary discussion about The Giver. Provide ... 
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 ... 
Math
If a pulse is 20 beats in 15 second what is the pulse for 1 min.  OK so I think that the answer is Mrs. Crachet. Though you guys don't have to be rude. If you don't like what she has to say then don't say anything other than this is wrong sorry. Plz be nice. :}

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 ...  Amanda is wright, I just did the assessment and the answer is: D D B D
 Numbers 3 and 5 are wrong the correct answers are 3.b 5.b
 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.

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^23x+2 b.)x^2+x2 c.)x^2x+2 d.)x^2+x2 
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 
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 ... 
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 ... 
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. 
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 ...  hkyj

history
What is the biggest secret if jose rizal??  thank u so much <3
 100 c d a
 got 10 love u
 bless you omg @um.
 I know it is not B. It was marked wrong.

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. 
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? 
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 (x2) in each expression.] the dogs are 2yrs: 23 yrs old 3yrs: 27 yrs old 4yrs: 31 yrs old 5yrs: 35 yrs ...  This answer is wrong!

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 ...  I took that same quiz and answered the same thing befor I came and checked. Its correct.

precalc
The point (3, 4) is on the terminal side of an angle(theta) . What is cos(theta)  its b

Math
find p so that the numbers 7p+2, 5p+12, 2p1...... form an arithmetic sequence  what r da answers

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?  a and d
 no its a and b I put JDogs answer it wrong
 What?!
 Thank you