Posts by jerry
Total # Posts: 438

math
If M is 2x2 with all ones, and N is 2x2 with all onehalf, M times N will not give the identity matrix. 
math
(n + n+1 + n+2)/3 = (3n + 3)/3 = n+ 1 
math
Draw a picture. Two strips of 7x.5 plus two strips of 8*.5. Answer: 15 
English
Please kindly help me to correct my english grammar. Dear sir, Good day, I just want to confirm from you if it is true the rampant rumors regarding the company.I just heard from this rumors mostly from company staff that it is already being purchased by other company. I'm ... 
English grammar
Please correct my english grammar. Dear sir, Good day, I just want to confirm from you if it is true the rampant rumors regarding the company.I just heard from this rumors mostly from company staff that it is already being purchased by other company. I'm just worried being... 
Financial literacy
supply and demand 
Math
A = P * e^(rt) = 5500 * (2.71828^(.045*5)) = 6887.77 
Math
400 * (1.29)^5 = 72.17 
Math
96000 * (1.04^(20071995)) = 153699.09 
Algebra
The common ratio is (648/8)^(1/4) = 3 8*3=24 24*3=72 72*3=216 216*3=648 
MATH
Divide numerator and denominator by .04 
Math
5 minutes = 5*60 = 300 seconds. 300 seconds + 15 seconds = 315 seconds. (2/3)*315 seconds = 210 seconds = 3 minutes and 30 seconds. 
AP algebra 1
I 6  (3d 5)I < = 14 I 6  3d +5I < = 14 I 11  3dI < = 14 14 <= 11  3d < = 14 25 <=  3d <= 3 25/3 >= d >= 3/3 25/3 >= d >= 1 1 <= d <= 25/3 
Chemistry
HCl(aq)+Li2CO3(aq)? Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed. 
Chemistry
2. The reaction can be described in words as follows: aluminum sulfate reacted with ammonium hydroxide forming the insoluble product or precipitate, aluminum hydroxide and the watersoluble ammonium sulfate. The chemical equation can be written as follows (“aq” means... 
Chemistry
2. The reaction can be described in words as follows: aluminum sulfate reacted with ammonium hydroxide forming the insoluble product or precipitate, aluminum hydroxide and the watersoluble ammonium sulfate. The chemical equation can be written as follows (“aq” means... 
English
No just gratitude and anticipation, and it's more of a script than a poem. And it's also vague. 
English
Write a few lines of dialogue between the emotions gratitude and anticipation. Make sure every line matches the emotion. 
Socials
What evidence is there to support John A. Macdonald’s argument that BC would be better off joining the United States if the transcontinental railway was not built? 
Math
i understand now thank you damon!! 
Math
if the same goes for tangent ratio can i do 5/1.5 to get 73 degrees as well? 
Math
For safety reasons, the angle between a ladder and the ground should be between 65° and 80. A ladder that is 5 m long is placed so that it reaches a window on the top floor of a house. If the foot of the ladder is 1.5 m from the house, is the ladder safe? Explain your ... 
History
100% correct THANK YOU! 
History
1.B 2.D 3.D 4.C 5.D 6.B 7.D 8.A 9.A 10.C 11.B 12.A 13.A 14.A 15.B 16.C 17.A 18.B 19.A 20.B 21.D 22.A 23.D 24.A 25.D These are the correct answers for....... World History A unit 13 lesson 6 review and test: New Global Connections 
english
Help please. 26. Write a paragraph that answers the questions below. Include at least two supporting details or examples. In “the literature of the Americas,” Kimberly Koza writes; “By discovering the literature of our neighbors, we may also learn about ... 
7th Grade Math
What value(s) can x have if x = 7? Explain. 
singapore math
Kim, Mei and yante collect stamps. Kim and Mei have 220 stamps more than Yanti. Yanti and Mei have 140 stamps more than Kim. Kim and Yanti have 500 stamps. How many stamps does Mei have? 
Math
Helen is 30. Dale is 40. 
Math 6th Grade
Thanks. 
Math 6th Grade
Bob is planting in a rectangular container. In the center of the container he places a smaller rectangular tub with mint. The tub is 8 in. by 3 in. He plants flowers around the tub. What is the area of the container planted with flowers? The whole rectangle is 38 in by 25 in, ... 
6th Grade Math (Please Help It's Getting Late)
What would I have to do then to find the price? 
6th Grade Math (Please Help It's Getting Late)
Really? That's it? 
6th Grade Math (Please Help It's Getting Late)
Roger visted a ski and snowboard shop the other day to buy a new snowboard. The store said it was having a sale, today only. 20% off all new 2016 Burton Snowboards. Usually these snowboards cost $300 when they're not on sale. Roger told his friend John they are only $60 ... 
programming
Design a subclass of SimpleCalculator called Calculator using psudoecode that contains public methods named multiply(), and divide() and that defines private fields called num1 and num2. Each of the methods accepts two numeric arguments and returns a number that represents ... 
programming
Design a subclass of SimpleCalculator called Calculator using psudoecode that contains public methods named multiply(), and divide() and that defines private fields called num1 and num2. Each of the methods accepts two numeric arguments and returns a number that represents ... 
World History
JOVANA IS CORRECT! 100% 
english
The answer is B 
geometry
how about area? 
social studies
why emotional readiness is necessary for good parenting 
chemistry
25cm cubed of 0.250mol per litre of potasium carbonate was nuetralized 12.5cm cubed of ethanoic acid of unknown concentration.determine concentration of the acid 
Math
Write a real world problem for the equation 3+x=8 
science
Why the solution of aluminium sulphate in water is not clear 
algebra 1
The base of a triangle is 3 cm greater than the height. The area is 27 cm squared. Find the height and base of the triangle. 
physics
experiencing a constant horizontal 1.10 m/s wind, a hot air balloon ascends from the launch site at a constant vertical speed of 2.70 m/s. at a height of 202 m, the balloonist maintains constant altitude for 10.3 s before releasing a small sandbag. how far from the launch site... 
Stat & Prob.
Show that if Cov(X,Y)=0, then the correlation coefficient satisfies p(X+Y, XY)=Var(X)Var(Y)/ Var(X)+Var (Y) 
healthcare stats
You currently lease scanning equipment at a cost of $2,750 per quarter and two copy machines at $150 each per month plus $0.01 per page copied. You estimate you will copy a total of 30,000 pages a year per copier. What will you need to budget annually for this leased equipment? 
Physics
Which are in static equilibrium? 1. A box sliding down a ramp. 2. A baseball after being hit. 3. A box sliding along a horizontal surface. 4. A perfectly upright freely spinning top 5. A freely swinging simple pendulum 6. A spinning astronaut floating out in deep space. 7. A ... 
PHYSICS
a 75kg parent and a 22kg child meet at the center of an ice rink. they place their hands together and push hard enough to slide apart. a. is the force experienced by the child more than, less than, or the same force experienced by the parent? I said they experience the same ... 
Algebra
Boris is driving to Memphis. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes). Boris has 58 miles to his destination after 21 minutes of driving, and he has 42.6 miles to his destination after 43 minutes of ... 
maths
289 
algebra
How would you enter the equation y + x2 = 1 into your calculator in order to graph it? 
Math
What is 9 minus 3 decided by 1third plus 1 equals 
Biology  Help!
Based on your knowledge of eukaryotic gene regulation, what series of events would explain the generation of the "preactivated" state for the full set of Bglobin like genes (epsilon, gamma, delta, and beta) in the earliest embryo? 
English (please check someone)
A C A is correct! 
chemistry
the density of an aqueous solution containing 10.0% by mass ethanol is 0.984 g/ml. calculate molality and molarity. what volume of the solution would contain 1.15 g ethanol ? 
Algebra
.6351 
math
Tim Tele received a $380 discount loan to purchase a DVD player. The loan was offered at 18% for 60 days. Find the interest in dollars and the proceeds for the following problem. 
Social Studies
b 
Physics
Car A travelling at 13 m/s [N] is 190m behind car B which is travelling at 9.0 m/s [N]. At this moment car A starts to accelerate at 6.0 m/s^2 [N] to catch up with car B. After 1.0s, car B also starts to accelerate at 2 m/s^2 [N]. How long will it take car A to catch up with ... 
L/A
ok but ill never use jiskha again. :( thanks for nothing 
L/A
These questions are from the book Rain Reign. Explain Rose's father's childhood. How might his childhood impact his relationship with Rose? 
Language Arts
These questions are from the book Rain Reign. Explain Rose's father's childhood. How might his childhood impact his relationship with Rose? 
Math
Sorry, I couldn't resist. 
Math
TAnk you 
math
3x^44/(x+2)^3 
Biology
List down 20 acids with their property and identify them by saying polar or non polar and acidic charge or basic charge 
Math
Each triangle is a 306090 triangle, and the hypotenuse of one triangle is the longer leg of an adjacent triangle. The hypotenuse of the largest triangle is 8 centimeters. What is the number of centimeters in the length of the longer leg of the smallest triangle? Express your... 
Algebra I
You have decided to try and convince your parents to let you get your own cell phone. After finding out that the flat monthly rate for unlimited minutes $35.00, which you can afford, you offer to pay the cost yourself. However, just before you place your order, you see an ... 
Social Studies (Help!)
OH. So it was for more land and riches, not to avoid other groups. 
Social Studies (Help!)
Could it also be because they wanted to avoid the English and Dutch colonies? 
Social Studies (Help!)
I know, but what was their reason for going west. Remember that this takes place during the mid1600's. 
Social Studies (Help!)
Why did New France stretch so far to the west? 
Social Studies (Help!)
Thank you! 
Social Studies (Help!)
OHHHHHHH. Was it because they didn't want to get their colony taken over by the Spanish, so they kept their colony hidden for this reason? 
Social Studies (Help!)
No 
Social Studies (Help!)
Still don't see it 
Social Studies (Help!)
So why did they want to hide their colony? 
Social Studies (Help!)
The English settlement of Virginia, or the Jamestown colony. And during the early 1600s 
Social Studies (Help!)
Why did the English want to hide their colony from Spaniards? Please help!!!! 
Math
A flowerbed is 3 3/4 meters long and 2 meters wide. Uncle James wants to build a border around the flowerbed. The width of the border is 1/2 meter. The cost of building the border is $20 per square meter. How much does Uncle James have to pay to have the border built. 3.75+3.... 
Math
If it takes a old and hot tap 6 mins to fill a bath and on their own it takes the hot tap 100 secs more than the cold tap to fill bath. How long will it take the cold tap on its own to ill the bath 
Math
Ten in each hundred 110 111 etc 210 211 etc 90 
Chemistry
how much limestone would be required to change the ph value from 4 to 4.5 in 20000 cubic of water? 
math
saac's law says, T(t) = Ta + (Ts  Ta)e^kt where Ta is the room temp Ts is the temp of the object and t is the time T(6) = 72 + (17372)e^(6k) 137 = 72 + 101e^6k 101e^6k = 65 e^6k = 65/101 6k = ln(65/101) k = ln(65/101)/6 = .073455541.. (put in calculator's memory) so... 
Math
How many 5 foot tiles are needed to completely cover a 40 foot square wall? 
Math
a shop has one pound bags of peanuts for $2.00 and threepound bags of peanuts for $5.50 if you buy 5 bags and spend $17, how many of each size bad did you buy? 
English
They sustained life threatening injuries in the forest fire, their names, ironically, are included on the list of suspected arsonist. How would you correct the sentence structure error? a. separate the two clauses with a colon b. join the two independent clauses with a ... 
science
yes you are correct. the equation for photosynthesis: 6 CO(2) + 6 H(2)O + energy > C(6)H(12)O(6) + 6 O(2) ^ the above equation basically says Carbon Dioxide + Water + energy yields> glucose + oxygen the carbon dioxide gets reduced to glucose (gain H+ atoms) while... 
science
true 
Math
Consider a market where supply and demand are given by QXS = 14 + PX and QXd = 85  2PX. Suppose the government imposes a price floor of $38, and agrees to purchase any and all units consumers do not buy at the floor price of $38 per unit. a. Determine the cost to the ... 
Algebra 2
I have to add this rational expression but I keep on ending up with 2 different answers each time I try to solve the expression. 2/x + 1/2x My answer is 4x+1/2x; but I also got 5/2x. Which one is correct and why? 
Algebra 2
Someone please help me. Cycle Paths, Inc. makes bicycles, tricycles, and unicycles. Last week they made 88 more bicycles then unicycles, and five times as many tricycles as unicycles. If they made 40 more bicycles then tricycles, how many unicycles did they make? 
physical sciences(chemistry)
Natasha holds the two ends of a string in her hands and then moves her hands up and down so that a wave travels from one end of the string to the other end. In which case will she have a standing wave along the string? 
College Algebra
Two pipes can be used to fill a pool, working together the two pipes can fill the pool in six hours. The larger pipe can fill the pool in three hours less time than the smaller pipe can alone. Find the time to the nearest tenth of an hour it takes for the smaller pipe working ... 
Philosphy  Dream Interpreations
Just any interpretation of what a venomous snake bite represents in a dream would be helpful. Thanks 
Philosphy  Dream Interpreations
It may sound weird because its written in first person, but its an assignment. But thanks anyway 
Philosphy  Dream Interpreations
I recently just had a dream when I was alone in my room enjoying myself and suddenly about 45 to what I perceived as venomous snakes, each with a vivid and distinct coloring design, appeared from the trashcan in the room and start slithering around. As I made feeble and ... 
chemistry
How many moles are their in 10.6 L os SO2 ? 
Probability
a) (1,1) b) 1 c) 0.52 d) 1 e) is always the same as 
Physics
In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a straightaway at 67.5 m/s. The driver of the Thunderbird realizes he must make a pit stop, and he smoothly slows to a stop over a distance of 250 m. He spends 5.00 s in the pit ...