Questions and answers by

Jennie

Questions (99)

Are these lines parallel?2x+2y=2 and 2y=-2x+3 Y=3x+2 and y+3x=-5 Y=2x-3 and 6x+3y-9=0 Y-2x+6=0 and 4y=8x+1
1. 1 answer
2. 14 views
Solve for x if the point (x,9) lies on the line 2y-10x+2=0
1. 1 answer
2. 17 views
Find any possible values for x and y if the point (x,y) lies on the line 4y-16x+12=0
1. 1 answer
2. 18 views
Find any possible values for x and y if the point (x,y) lies on the line y=3x+7
1. 1 answer
2. 18 views
What is your personal artist statement right now. Consider: What inspires you? what materials do you like? what techniques,
1. 1 answer
2. 107 views
Piece 1: Describe the work. Who is the artist? How does this work influence or inspire your art?Piece 2: Describe the work. Who
1. 1 answer
2. 173 views
A climber of mass 80 kilograms is on the steep rocks face, the force x that the rock exerts on climber is at angle of 50 degree
1. 0 answers
2. 165 views
Dexter has two sticks of length 10 inches and 16 inches. What is the area of the triangle with the longest perimeter that he
1. 1 answer
2. 542 views
Find the value of the following:a. 5^3𝑥 when 5^𝑥=2 b. 3^5𝑥 when (1/27)^𝑥=4
1. 1 answer
2. 183 views
How do you calculate the uncertainty of vitamin c in an unknown working solution without using the uncertainty eq?
1. 2 answers
2. 365 views
Rewrite cot^2⁡〖x/4〗 in terms of cosine without power greater than one. Assume that x is in QI.
1. 1 answer
2. 330 views
prove: tan⁡(π+4x)=(4 tan⁡x-4 tan^3⁡x)/(tan^4⁡x-6 tan^2⁡x+1)
1. 0 answers
2. 314 views
Mari had 40 tens.write how many hundreds.wtite the number
1. 1 answer
2. 269 views
The distance s in feet that a body falls in t seconds is given by the formula s=16t^2. If a body has been falling for 5 seconds,
1. 1 answer
2. 683 views
A curling stone is moving at a velocity of 8 m/s stops after sliding 5 m across a surface that has 70 N of friction. What is the
1. 2 answers
2. 452 views
In the figure, ab=25, ad=17, dp=8m, AQ= 5 m, bs=3m. Find the area of shaded region
1. 1 answer
2. 413 views
Write 1.07 x 10^3 in standard form.1. 0.00107 2. 10,700 3.107 4. 1,070
1. 7 answers
2. 2,158 views
I I need so much help. Can anyone explain in detail what is going on?The compound is Potassium Carbonate. What would the flame
1. 1 answer
2. 533 views
You want to conduct a survey to find out what sport the students at your school prefer to play.a) You interview 20 boys playing
1. 6 answers
2. 2,770 views
Above is a 2nd graphPart 1 Graph Present these results by creating a line graph. Part 2 Analysis 1)What is relationship between
1. 5 answers
2. 2,683 views
1) what is te message of the monument?2) why was a particular location chosen for its display? 3) Do you ageee with the chosen
1. 5 answers
2. 1,485 views
Why did Buddhism become popular in India?I learned this so long ago idk what the answer is anymore. I cant even remember what I
1. 2 answers
2. 607 views
Can someone please help me urgent. I need to rewrite theses two sentences and eliminate unethical aspects. The service
1. 1 answer
2. 686 views
What do you mean by accurate? I'm confused. I have been out of school since the 70's. Thank you!
1. 1 answer
2. 438 views
Trained technicians respond to all of our calls.The service contract applied to all upgrades. My previous question could you
1. 1 answer
2. 700 views
I have to take out embellishments, misquotations, false benefits and unethical tactics out of these sentences. I need help.Facto
1. 1 answer
2. 610 views
Factory-trained technicians respond to all our calls."The service contract...on the whole...applied to upgrades. Need help
1. 1 answer
2. 596 views
Jasper's friend Tina challenges him to a game of Unders and Overs. He's never played the game before, so Tina explains the
1. 1 answer
2. 1,006 views
A clock gains s seconds in one hour. In its simplest form, write down an expression in term of s and d for the number of minutes
1. 1 answer
2. 2,305 views
what's the answer to subject and object pronouns worksheet the directions is write each sentence replace the underlined words
1. 2 answers
2. 834 views
I need help on my chem lab... I need to give you background info so you know how to help me..Data Sheet: Specific gravity of
1. 0 answers
2. 623 views
I need help on my chem lab... I need to give you background info so you know how to help me..Data Sheet: Specific gravity of
1. 0 answers
2. 656 views
I need help on my chem lab... I need to give you background info so you know how to help me..Data Sheet: Specific gravity of
1. 0 answers
2. 748 views
Is a country with a trade surplus better off or worse off than a country with a trade deficit? Provide your rationale.
1. 1 answer
2. 519 views
Calculate the concentration of OH− and the pH value of an aqueous solution in which [H3O+] is 0.014 M at 25°C. Is this
1. 0 answers
2. 728 views
For Cup CMass of cup,water,stirrer: 55.15 Mass of sodium bicarbonate: 2.02g mass of citric acid: 0.77g total mass: 57.94g mass
1. 1 answer
2. 740 views
Ok, For Cup CMass of cup,water,stirrer: 55.15 Mass of sodium bicarbonate: 2.02g mass of citric acid: 0.77g total mass: 57.94g
1. 1 answer
2. 778 views
Ok, UMMMM I thought I was good.. Till now..Ok, For Cup C Mass of cup,water,stirrer: 55.15 Mass of sodium bicarbonate: 2.02g mass
1. 1 answer
2. 790 views
Plastic Cup BMass of cup, water and stirrer: 53.75g mass of sodium bicarbonate: 2.02g mass of citric acid: 1.52g total mass of
1. 2 answers
2. 871 views
This is in response to the fact that my experiment had me come up with my own.. I was supposed to measure out as close to 1g as
1. 2 answers
2. 960 views
Now, I'm going to post how to figure out the theoretical yield of carbon dioxide from 1.00g sodium bicarbonate...The reaction of
1. 1 answer
2. 1,064 views
Dr. Bob,I just did a home lab with citric acid and sodium bicarbonate and had to put them in cups and measure before and after..
1. 2 answers
2. 978 views
I have no idea where to begin with this?? This class is moving so fast! Dr. Bob222 I made a 100 on my prelab!! and the online
1. 3 answers
2. 770 views
WHAT???? which of these are electrolytes??CH3CH2OCH2OH PCl3 Na2CO3 O2
1. 1 answer
2. 816 views
true or false???The larger molecules dissolve best in a solvent with a low molecular weight.
1. 1 answer
2. 451 views
Calculate the mass/volume percent of a NaCl solution in which 182g of NaCl is dissolved in enough water to give a total volume
1. 2 answers
2. 7,908 views
How many grams (of mass m) of glucose are in 355mL of a 5.50% (m/v) glucose solution?You have a solution that is 18.5% (v/v)
1. 4 answers
2. 11,668 views
this is confusing me so bad!!Nitrogen gas reacts with hydrogen gas to produce ammonia by the following equation:
1. 2 answers
2. 1,065 views
Balanced Equation:2PbS+ O2 --> 2PbO +2SO2 How many grams of oxygen are required to react with 0.124mole lead(II) sulfide?
1. 1 answer
2. 1,147 views
Ok, I'm trying my best here, I'm learning, and I'm thinking I'm on a roll, until I can't get the right answer again.....First..
1. 1 answer
2. 809 views
Calculate the mass of water produced when 3.09g of butane reacts with excess oxygen.2C4H10 + 13O2-->10H2O + 8CO2 Help.
1. 2 answers
2. 11,247 views
I need to know how to figure this out, step by step... Don't assume I know anything.. Break it down for me like I'm a 5 year
1. 1 answer
2. 3,653 views
Need Help!1. Ammonia is produced by the reaction of hydrogen and nitrogen. N2(g)+3H2(g)→2NH3(g)ammonia How many moles of N2
1. 2 answers
2. 1,353 views
I'm having a brain malfunction...how to calculate how many grams are in a mole of something? How many grams are in 3.80mol of
1. 1 answer
2. 535 views
Ammonia is produced by the reaction of hydrogen and nitrogen.N2(g)+3H2(g)→2NH3(g)ammonia How many moles of N2 reacted if
1. 1 answer
2. 2,403 views
Ok, I know how to balance chemical equations, however, I don't know how to tell if it is a S, L, aq, or g? How am I supposed to
1. 2 answers
2. 781 views
Dr. Bob222,Calculate the moles of C2H6 in 8.60×1023 molecules of C2H6. I did what you said, I got 8.60*10^23*(1mole/6.02*10^23)
1. 2 answers
2. 742 views
UMM.. I keep coming up with the wrong answer? How do I calculate this?1. Calculate the number of Li atoms in 9.9 moles of Li.
1. 2 answers
2. 1,532 views
DrBob222 You are an amazing person! I have received more help from you the past two days that I have this whole semester from my
1. 1 answer
2. 556 views
Ok, Need some more help... This is what I have so far.4. Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The
1. 1 answer
2. 2,919 views
Dr. Bob222 Please don't get frustrated with me, I'm really trying to figure this out... UGH!!I'm starting over again... Please
1. 1 answer
2. 744 views
Ok, Need some more help... This is what I have so far.4. Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The
1. 1 answer
2. 992 views
Dr. Bob222 Please don't get frustrated with me, I'm really trying to figure this out... UGH!!I'm starting over again... Please
1. 2 answers
2. 635 views
Someone please tell me if I'm doing this right... It's due tonight!!Dr. Bob222, Yesterday I posted a question and you answered
1. 1 answer
2. 785 views
Someone please tell me if I'm doing this right... It's due tonight!!Dr. Bob222, Yesterday I posted a question and you answered
1. 1 answer
2. 595 views
Dr. Bob222, Yesterday I posted a question and you answered me with how to calculate it.. Can you tell me if I'm doing this
1. 1 answer
2. 719 views
Consider the following chemical equation:TiCl4(g) + 2Mg(l) → Ti(s) + 2MgCl2(l) 3.54×107g of TiCl4(g) were reacted completely
1. 2 answers
2. 1,281 views
Determine the critical region and the critical values used to test the following null hypotheses:a. Ho: μ = 55 (≥), Ha: μ <
1. 0 answers
2. 625 views
A 1N solution of NaOH is diluted 4/20 then rediluted 1:50. What is the final normality? How many grams of NaOH are present in
1. 1 answer
2. 606 views
If given the Selling price, the direct labor costs and other variable costs how do you determine the number of direct labor
1. 0 answers
2. 471 views
Use this reaction to answer the question: 2KClO3 -> 2KCl + 3O2.If I start with 65g KClO3, how many mol O2 will be formed? How
1. 0 answers
2. 629 views
At the beginning of the week, an electronics store took count of how many tvs and radios there were in the stockroom. The
1. 3 answers
2. 554 views
Two identical rollers are mounted with their axes parallel, in a horizontal plane, a distance 2d = 40.4 cm apart. The two
1. 0 answers
2. 1,138 views
Two identical rollers are mounted with their axes parallel, in a horizontal plane, a distance 2d = 40.4 cm apart. The two
1. 2 answers
2. 657 views
Two identical rollers are mounted with their axes parallel, in a horizontal plane, a distance 2d = 40.4 cm apart. The two
1. 0 answers
2. 789 views
Two identical rollers are mounted with their axes parallel, in a horizontal plane, a distance 2d = 40.4 cm apart. The two
1. 0 answers
2. 612 views
How many different arrangements can be made with the letters from the word ORANGE?
1. 1 answer
2. 1,488 views
You are standing 7 feet from one speaker and 13 feet from another. Both speakers are producing the same sound. If the combined
1. 2 answers
2. 958 views
A woman is sitting in a boat at anchor on a lake. Her boat bobs up and down once every 2.0·s. She notices that when the front
1. 1 answer
2. 1,211 views
Write the expression as a complex number in standard form. 3-3i/4iI'm not sure about this problem, but I think the answer is
1. 2 answers
2. 1,357 views
You have a stock solution of 15.8 M NH3 . How many milliliters of this solution should you dilute to make 1350 mL of 0.300 M NH3
1. 2 answers
2. 3,659 views
A watch cost $75.99. If the sales tax rate is 6.25%, what is the amount of sales tax? Please show work or the explanation you
1. 4 answers
2. 1,058 views
True or False.1)Electrons give off light as they drop to lower energy levels. 2)Electrons travel around the nucleus as waves.
1. 4 answers
2. 2,029 views
A wire carries a current north. Above the wire the magnetic field is directed _________. Is it east?You are looking at a coil
1. 2 answers
2. 469 views
The sex ratio(number of females vs. males) of which of the following species might be most affected by global warming?A.Humans
1. 0 answers
2. 473 views
-2(x-2)=2[x-4(x-2)+x]
1. 1 answer
2. 341 views
What is the average time interval between heartbeats?what is the average time between a hummingbird flaps its wing?
1. 1 answer
2. 470 views
What affect does salt have on ice water? Is there a term for it and a website that explains this?
1. 1 answer
2. 544 views
How are the formation of aqueous solutions of sodium chloride and sucrose similar?
1. 1 answer
2. 1,530 views
Is this statement accurate?the boiling point of the distilled water was 99°C. After five minutes, the temperature still stayed
1. 2 answers
2. 690 views
Joshua has a mass of 60kg and stands next to a wall ona frictionless skateboard. If he pushes the wall with a force of 30N, how
1. 1 answer
2. 2,730 views
Does anyone have any ideas for an UNpersuasive essay?Instead of doing a normal essay, my class is doing an essay on anything
1. 1 answer
2. 551 views
The "Critical Period" took place during the years when...w. the United States was governed by its 1st president x. George
1. 1 answer
2. 1,019 views
I need help finding some major issues in new jersey!please help!
1. 1 answer
2. 963 views
If your inital investment is $1000, and your rate of return is say 10%, did you make $100 or $1100 from your $1000?
1. 4 answers
2. 467 views
How do i graph f(x)4x-x^3-x^5?How do I graph f(x)=x^5-4x^3-12x?
1. 0 answers
2. 364 views
Two centuries ago there were more buffalo than cattle in the United States. Even though millions of cattle are killed for beef
1. 2 answers
2. 1,115 views
Could anyone explaint to me what role the Binomial Theory plays in statistics and probability?Using statistics, we can make
1. 0 answers
2. 1,106 views
proof by mathmatical induction that the sum of the first n natural numbers is equal n(n+1)/2It's true for n = 1. Assume that it
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2. 616 views