Number of results: 45,470
chemistry
Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Water has the highest boiling point. B. H-O-H and C-O-H bond angles are all equal to 1095. C. Dispersion forces affect all three molecules. D. Two lone pairs of electrons are ...
Friday, January 26, 2007 at 11:25pm by helppleez
writing
Can someone check my answers for me? True or False... 1. TRUE you should use a comma before the word “and.” 2. FALSE The following is a sentence fragment: It no longer flies. 3. TRUE In the following sentence, the ()'d word is used correctly: The (Jones’) ...
Thursday, September 13, 2012 at 4:06pm by Chris
math
Which of the following conclusions is true about the statement below? x^2 = √x a) The statement is always true. b) The statement is true when x is negative. c) The statement is true when x=0. d) The statement is never true.
Saturday, April 6, 2013 at 2:47pm by Anonymous
chemistry
In the chemical plating experiment zinc powder is dissolved in a hot NaOH solution to form sodium zincate according to the following reacton: Zn(s) + 2NaOH(aq) Na2ZnO2(aq) + H2(g) Answer true or false for each of the following statements regarding the reaction above. Zn(s) is...
Sunday, May 2, 2010 at 4:13pm by chem help
Discrete Math
A nice puzzle. The truth table for ~R is R ~R T F F T Since ~R=true, therefore R=false. Given R is false, and R v(P v T)=R ∨ P ∨ T is true, we conclude that P∨T is true, i.e. P=true ∨ T=true .... (1) Then we need the table for the conditional (-&...
Wednesday, August 1, 2012 at 2:28am by MathMate
American History
1.True 2.A 3.B 4.D 5.A 6.True 7.c. 8.False 9.True 10False 11.A 12.True 13.True 14.D 15.A 16.C 17.False 18.C 19.True 20.true 21.C. 22.A. 23.B 23.B.
Thursday, May 14, 2009 at 9:55pm by Shawn
American History
1.True 2.A 3.B 4.D 5.A 6.True 7.c. 8.False 9.True 10False 11.A 12.True 13.True 14.D 15.A 16.C 17.False 18.C 19.True 20.true 21.C. 22.A. 23.B 23
Thursday, May 14, 2009 at 9:55pm by Shawn
chemistry
Which of the following is NOT true? A. A measurement contains significant figures and units. B. All numbers should be recorded from a digital readout. C. The uncertain digit is estimated between the last two markings. D. If an average of 4 trials is being calculated the "...
Thursday, May 10, 2007 at 10:07pm by jared
chemistry
I helped, with Dan H, to answered this question yesterday or at least a similar one. A is true, B is true, C is not true, D is true, E is not true.
Sunday, February 10, 2008 at 10:21pm by DrBob222
math
Algebra For questions 1-5, find the value of the variable. 1. x = (1 point) 2. y = (1 point) 3. x = (1 point) 4. x = (1 point) 5. (1 point) x = , y = , b = 90 x = , y = 3, b = 95 x = , y = 2, b = 90 x = , y = , b = 130 In Exercises 6-8, decide whether the statement is true or ...
Thursday, May 20, 2010 at 1:12pm by Sasha Z.
Pre-Calculus
Graphing Polynomials Decide whether each of the following is sometimes true, always true, or never true and explain reasoning. A. A cubic function has 2 different x-intercepts ^Never true, has to have 3? B. A cubic function has 3 x-intercepts ^ Always true C. A quartic ...
Wednesday, September 26, 2012 at 7:10pm by Shreya
Math
a.)If ABCD is a parallelogram, then ABCD is (always true, sometimes true, OR never true) a rectangle. b.)The diagonals of a square (always true, sometimes true, OR never true) bisect each other. c.)If WXYZ is a rectangle, then the diagonals are (always true, sometimes true, OR...
Friday, April 29, 2011 at 11:12am by Kim
ctr 205
Michael Jackson has had more plastic surgery than anybody else in california. You can bet he's had more than anybody in connecticut? choose from the following: (a) true (b)probably true (c) possibyl true or possbily false? I think that it's (a). what do you think it is.
Sunday, July 6, 2008 at 3:13pm by lynn
math
The following conjectures were made by students. Are they true or false? Give a counterexample if possible. Only half of the nonzero even numbers up to 100 are divisible by 4. My answer is that it is true. A number is divisible by 8 if it is divisible by 4 and divisible by 2. ...
Sunday, October 10, 2010 at 6:16pm by m
CHECK ANSWERS AND HELP PLEASE
if P(A)=.60, P(A/B)=.50, AND P(B)= .40, answer the following. 1) events A and B are independent =FALSE true or false or cannot determine 2) events A and B are disjoint =TRUE true or false or cannot determine 3) find P(A and B) =??????
Monday, April 8, 2013 at 4:34pm by MELISSA
math\
2. A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? a. There is no mode. (True or False) b. There are two modes. (True or False) c. There are three modes. (True or False)
Saturday, August 13, 2011 at 6:29pm by joanne
english
Which of the following is not true of an epic? a. it is a long narrative work b. it embodies the values of a culture c. the story is written in either Latin of Greek but translated into English d. the hero is presented as someone who can perform remarkable feats i'm 100% ...
Sunday, July 5, 2009 at 11:05pm by y912f
Biology
Just took a quiz and here are the corrected answers 1. True 2. True 3. False 4. False 5. True 6. False 7. True 8. True 9. False 10. False 11. True
Thursday, September 8, 2011 at 2:54pm by Dak
geometry
Is it always true, sometimes true, or never true that the centroid is outside its associated triangle? Is it always true, sometimes true, or never true that two complementary angles have a common vertex?
Sunday, May 30, 2010 at 8:58pm by lisa
statistics
1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. (True/False) b. The graph of a normal distribution is bell-shaped. (True/False) c. If a population has a normal distribution, the mean and the median are not ...
Saturday, August 20, 2011 at 7:26pm by ann
math
test whether it is true for n=1: 1/2 = 1/2^1 yes Now, assume it is true for n=k. That is, 1/2 + 1/4 + ... + 1/2^k = 1 - 1/2^k Now, what do we have for n=k+1? 1/2 + 1/4 + ... + 1/2^k + 1/2^(k+1) = 1 - 1/2^k + 1/2^(k+1) = 1 - 2/2^(k+1) + 1/2^(k+1) = 1 - 1/2^(k+1) So, if it's...
Saturday, April 27, 2013 at 2:05pm by Steve
Geometry
Is it always true, sometimes true, or never true that the circumcenter is outside its associated triangle? Is it sometime true?
Friday, August 7, 2009 at 10:58pm by Tre
Math
Explain which method you would use to determine whether the following proportion is true or false. Show how you know that it is true or false.19/6=4/27
Saturday, October 17, 2009 at 10:06am by Anonymous
math
Is the following statement true or false? Explain your answer without just saying true or false. Use an example in your explanation. ãa + ãb = ã(a+b)
Thursday, October 27, 2011 at 3:20pm by Anonymous
Chemistry: Answer check please!
1. Reactions follow the law of conservation of mass. a.) True b.) False Answer: True 2. Reactants are the materials used in a chemical reaction. a.) True b.) False Answer: True 3. In a chemical equation, the mass on the left of the arrow equals the mass on the right. a.) True ...
Saturday, April 2, 2011 at 7:32pm by Cheryl
crt205
When liquor was banned in 1920, hospitalizations for acohlism and related diseases plummeted in 1933, when prohibition was repealed, alcohlo-related illnesses rose sharply again. Legalization of cocaine, heroin, and marijuana would not curb abuse of those substances. Chose ...
Saturday, July 5, 2008 at 11:35pm by lynn
science
The following statement is a vaild scientific theory. If Watson and Crick had not discovered the structure of DNA, bio - technology would be 20 years behind where it is today. TRUE FALSE true
Monday, September 6, 2010 at 2:34pm by pam
science
The following statement is a vaild scientific theory. If Watson and Crick had not discovered the structure of DNA, bio - technology would be 20 years behind where it is today. TRUE FALSE true
Monday, September 6, 2010 at 12:58pm by pam
Reading
can you help me thank you: 2.Detecting bias is one of the major keys to effective critical thinking and reading. True or False, I believe True 3.Deductively valid arguments can guarantee their conclusions. True or False, I believe it is false 4.A fallacy is an unreliable and ...
Saturday, August 6, 2011 at 5:35pm by Naomi
Math- Please Help!
We can solve this problem in many ways, a truth table, or a logic tree. The latter seems more convenient, so it will be used. First let's use some definitions of symbols. For the names, A=Amy B=Beth K=Kay M=Mary For the locations, A=Apartment building C=Coffee Shop S=...
Monday, November 14, 2011 at 11:48am by MathMate
Information Technology 130 Programming Concepts
True or False Indicate whether the following statements are true or false. 1. T F: You cannot break up a word with the line-continuation character.
Thursday, May 17, 2012 at 3:02pm by Roger
dog behavior
please check my answer True or False The following statement describes classical conditioning. It involves the pairing of a conditioned stimulus with an unconditoned stimulus I say True
Friday, April 4, 2008 at 3:46pm by alexis
Science Plz help
1. Acceleration involves a change in ____. speed velocity displacement direction 2. Which of the following statements about acceleration is true? Like velocity, acceleration has a direction. Your acceleration is positive when you speed up. Your acceleration is negative when ...
Friday, March 29, 2013 at 1:42pm by Jman
True False
The following sentence is an example of proper comma usage: “Many students anticipate spring break but, Luis looks forward to winter vacation more.” (Points :1) True False
Wednesday, May 19, 2010 at 9:32am by Anonymous
Chemistry
Which of the following statements are true? Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going, a chain reaction must be maintained. Nuclear fusion produces no long-lived radioactive by-products. The Sun is a nuclear fusion reactor. I tried ...
Tuesday, April 19, 2011 at 4:36pm by Sue
chemistry
Which of the following statements about proteins is true? The simpler an amino acid is, the more likely it is to be generated within the body. The source of a protein (mammal, fish, or poultry) has little effect on nutritional value. All of these are true.
Monday, April 15, 2013 at 9:14pm by asap
chemistry
A is not true. The bond angle in HOH is 104 degrees. B is true. C is true. D is true. E is not true because A is not true. By the way, you may have made a typo in answer A. The bond angle you may have meant to type is 109.5o and you typed 1095 instead; howeer, that doesn't...
Tuesday, February 3, 2009 at 11:37pm by DrBob222
probability & statistics
Q: if A and B are independent events, how many of the following statements must be true? 1. A' and B are independent 2. A and B' are independent 3. A' and B' are independent is choice 3 the only one that is true?
Wednesday, June 13, 2012 at 10:00pm by Anonymous
psychology
Regarding the use of anesthetics during childbirth, which of the following statements is true? A. they are rarely used these days B. the epidural procedure is most often favored. C. anesthetics is current use can't cross the placenta barrier to affect the fetus. D a ...
Sunday, December 14, 2008 at 4:25pm by ourania
Trig
Use reduction identities to determine if the following statement is true or false: tan (A-B) = tan (B-A) Is this starement True or False ?
Thursday, December 22, 2011 at 10:56pm by Don
math
For each of the following, find all possible whole-number replacements that make the following statements true. 123 = 7 • 17 + ______
Saturday, December 19, 2009 at 4:52am by Tamara
physics-Electric & magnetic fields
Obviously, C, D, is true, E is true if one ignores direction of force, F is true (as the E field accelerates the proton), and since perpendicular speed is constant, G is true. Gee, it turned out easy.
Sunday, May 15, 2011 at 5:47am by bobpursley
True False
In the following sentence, the comma is used correctly with an introductory clause: “Training for the upcoming ten-mile marathon, Lizette includes more protein and complex carbohydrates in her diet.” (Points : 1) True False
Wednesday, May 19, 2010 at 9:32am by Anonymous
math
Determine whether the statement is always true, sometimes true, or never true. 3) The length of the hypotenuse of a right triangle equals the length of one of the legs of the triangle. Answer choice: a.) always true b.) sometimes true c.)never true
Wednesday, April 14, 2010 at 12:18am by nicole
Chemistry (PLEASE HELP)
Which of the following statements are true? Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going, a chain reaction must be maintained. Nuclear fusion produces no long-lived radioactive by-products. The Sun is a nuclear fusion reactor. I tried ...
Tuesday, April 19, 2011 at 7:58pm by Jamie
Physics
1. false 2. true 3. true 4. false 5. true. Less power but the same energy 6. true. Machines can reduce force but not work required.
Thursday, February 28, 2008 at 8:36am by drwls
Math
Determine whether the statement is true, false, or sometimes true. Explain or show why. If x is positive and y = -x, then xy is negative. Is this always true or sometimes true?
Saturday, October 24, 2009 at 1:59pm by Anonymous
basic math
Is it always true, sometimes true, or never true that a regular quadrilateral has two or more obtuse exterior angles? Is it Sometimes true
Sunday, August 9, 2009 at 6:20pm by Pepe
Discrete Math
Similar to a≥b! Consider R:{(3,2),(2,2),(3,3)} "Antisymmetric if a~b ∧ b~a -> a=b " (3,2)[true] ∧ (2,3)[false] -> 2=3 [true] (because the statement is true whenever the condition is false) (3,3)[true] ∧ (3,3)[true] -&...
Tuesday, February 8, 2011 at 9:04am by MathMate
math
the following statement always true, always false, or true in some cases and false in others? Explain your answer. A quadrilateral whose diagonals are congruent and perpendicular is a square.
Saturday, February 6, 2010 at 5:22am by alicia
Dogs Hunting Training
Please check my answer thank you :) Is the following statement True or False Field trials are competitive events in which dogs can earn championship titles My answer is True
Saturday, January 10, 2009 at 1:30pm by Mallie
physics
Consider the following statement: “When a rifle is fired horizontally, the bullet leaves the barrel and doesn’t drop at all for the first 45 meters of flight.” Is this statement true? Wouldn't this statement not be true because you don't know the initial...
Tuesday, October 5, 2010 at 8:02pm by jon
Grammar
Determine if the following sentence employ the correct use of commas and apostrophes. True Correct False wrong 1. The girl's mother, a nurse at a local clinic, was called at her work and told of her daughter's injury. Answer: True
Wednesday, May 11, 2011 at 12:09am by Leslie
Grammar
Determine if the following sentences employ the correct use of commas and apostrophes. True correct False wrong 1. Child's initial exam shows a furious, robust, fighting infant who is moving his head well. Answer: True
Wednesday, May 11, 2011 at 12:06am by Leslie
Chemistry: Check please, these are hw assignments
1. Gases can be considered fluids. a.) True b.) False Answer: False 2.Gases are not easily compressed. a.) True b.) False Answer: True 3. Gases spread to fill out space. a.) True b.) False Answer: True 4. Increased pressure on a gas at constant temperature will cause the ...
Saturday, April 2, 2011 at 7:39pm by Cheryl
Math
Can someone check my answers for me pls? True or False LCM of 10 and 18 is 180; False LCM of 8 and 30 is 120; True LCM of 3 and 4 is 12; True LCM of 42 and 28 is 168; True LCM of 9 and 15 is 45; True
Friday, December 5, 2008 at 12:30pm by Jaden
Science
1. Acceleration involves a change in ____. (1 point) speed velocity displacement direction 2. Which of the following statements about acceleration is true? (1 point) Like velocity, acceleration has a direction. Your acceleration is positive when you speed up. Your acceleration...
Tuesday, March 12, 2013 at 10:09am by Anonymous
MATH213
13. For each of the following, find all possible whole-number replacements that make the following statements true. 2 • ______ + 15 < 27
Monday, December 14, 2009 at 11:16pm by alicia
math
Can someone please help me with the following problems Determine if the triple numbers are can be sides of a right triangle? sqrt(10)sqrt(13)sqrt(23) The length of thy hypotenuse of a right triangle equals the length of one of legs of the triangle A) always true B) sometimes ...
Saturday, May 22, 2010 at 5:47pm by Nicole
chemistry
i think its true, true, true, true, false, true, false, false, true.. but its not right
Saturday, November 26, 2011 at 5:46pm by Kay
True False
here should be commas around “however” in the following sentence: “Dwayne had planned to take the last flight out to Chicago. It was cancelled, however, because of bad weather.” (Points :1) True False
Wednesday, May 19, 2010 at 9:32am by Anonymous
Prin of finance
Which of the following statements are true of a “two-for-one stock split?”: 1. It may signal higher future earnings 2. By creating more shares at a lower price, marketability may be improved 3. It increases the “Equity Section” of a company’s Balance ...
Sunday, March 14, 2010 at 4:33pm by Donald
Chemistry
Is the following sentence true or false? To decide wheather a measurement has good precision or poor precision, the measurement must be made more than once. thanks in advance True. I hate T/F statements that have "must be". Life is full of exceptions to always, and ...
Thursday, January 11, 2007 at 9:30pm by Bryan
chemistry(can anyone help me with this)
A would be true EXCEPT for the except part. As far as I know, absorbance values have significant figures also. B. I don't know that ALL numbers should be recorded. C is true. D is true. E can't right if C and D the only true ones.
Tuesday, January 19, 2010 at 9:04pm by DrBob222
logic and set theory
As per question, P is not true if and only if Q is not true. The equivalent is P is true if and only if Q is true.
Tuesday, July 21, 2009 at 8:14pm by MathMate
Physics
Evaluate the following as true or false. If the Earth shrank in size, but all other factors remained the same, all of its satellites, including the Moon, would fly off into space. a) True b) False
Sunday, November 18, 2012 at 9:53am by Kelvin
chemistry
are the following true for the element gallium? if they are false make them true. oxide more basic than Al203 oxide less basic than Mg(OH)2 hydroxide soluble in acid hydroxide soluble in base sulfide precipitates with H2S sulfide not soluble in (NH4)2S will form EaCl3, Ea2S3, ...
Sunday, November 18, 2007 at 12:31pm by Amanda
chemistry plz help!!!
are the following true for the element gallium? if they are false make them true. oxide more basic than Al203 oxide less basic than Mg(OH)2 hydroxide soluble in acid hydroxide soluble in base sulfide precipitates with H2S sulfide not soluble in (NH4)2S will form EaCl3, Ea2S3, ...
Sunday, November 18, 2007 at 2:56pm by Amanda
Algebra 2
Is it me or does this problem not make sense? (you can't solve it) 5. Solve for x in the following system: 6x + 6y = -2 y = -x I also need help in these: 38. We can take the product AB only if the number of columns of A equals the number of rows of B. -True? 40. The graph ...
Sunday, May 1, 2011 at 4:37pm by mysterychicken
plagiarism am i correct? plz help
answer True or False to the following statements. It is plagiarism if 1. only one or two words in a sentence found in a textbook are changed without using quotation marks. (false) 2. it is my own original idea. (true) 3. information is used directly from a journal article or ...
Tuesday, January 12, 2010 at 7:22pm by scooby
Math
Determine whether the following statements are always,sometime, or never true.Explain 1.Three points determine a plane. 2.The intersection of two planes can be a point. 1.Never true, the three points must be noncollinear. 2.Never true, the intersection of two planes is a line...
Wednesday, October 6, 2010 at 10:42pm by Shadow
Calculus
State whether the following are true or false. The square roots of 36 are + and - 6. I wrote down false for this cause I thought it was only + 6, but the real answer is true, and I want to know that how can it be negative? Also for this: Convert the following radicals to mixed...
Saturday, September 24, 2011 at 8:18pm by -Untamed-
Grammar
Determine if the following sentences employ the correct use of commas and apostrophes. True=correct False=wrong 1. The child was alert upon awakening, nonetheless we felt a full workup was best at this time. Answer: True Looks good to me - flows nice.
Wednesday, May 11, 2011 at 12:26pm by Leslie
Chemistry
a is not true. b is not true. You are correct that c is true. d? For water aspirators, I don't think a valve is used but I never took one apart to look at the insides. The water IS reduced in the rubber hose. Perhaps Bob Pursley knows. I'll ask him to comment and post...
Monday, September 26, 2011 at 11:38am by DrBob222
Chemistry
4. The electrons surround the nucleus of the atom.- True 16. Of the three subatomic particles, the electron is the smallest.- True 37. Electrons have almost 0 mass.- True? 39. Neutrons carry no electrical charge.- True Thanks -MC
Wednesday, October 20, 2010 at 1:46pm by mysterychicken
mathematical induction
First, verify for n=1: 1/1*3 = 1/(3) -- true Assume it is true for n: 1/1*3 + 1/3*5 + ... + 1/(2n-1)(2n+1) = n/(2n+1) Now, add the next term to both sides: 1/1*3 + 1/3*5 + ... + 1/(2n-1)(2n+1) + 1/(2n+1)(2n+3) = n/(2n+1) + 1/(2n+1)(2n+3) = [n(2n+3) + 1]/(2n+1)(2n+3) = (2n^2 + ...
Wednesday, November 2, 2011 at 4:06pm by Steve
Spanish: PLEASE HELP
Please help. Thank You. 1. The stem-changers in the current section are similar to those in the previous section except these stem-change "o" to "oe." *A.) true B.) false 2. Of the following, which is not a stem-changing verb? A.) almorzar *B.) comer C.) ...
Tuesday, February 26, 2013 at 5:20pm by James
computer sciece(Computation Theory)
"...prove that it is true for h = k + 1 . Take any set H of k + 1 horses. We show that all the horses in the set are the same color. Remove one horse from this set to obtain the set H1 with just k horses...." The induction process requires to prove that given the ...
Monday, September 26, 2011 at 3:22am by MathMate
Grammar
Determine if the following sentence employ Correct use of Commas and apostrophes.True=correct False=wrong 1. The child was initially started on ceftriazone, but developed a rash and was therefore changed to chloramphenicol. Answer: TRUE nedd the comma there for the pause - but...
Wednesday, May 11, 2011 at 12:38pm by Leslie
not math
a. You will continue to be sore. b. All can be true. c. All can be true. d. Either one of the first two sentences is false, or Homer is not a student. e. All can be true. f. All can be true.
Saturday, March 31, 2012 at 1:33am by PsyDAG
math
When Ms. Jackson told her students that the circumference of a circle divided by the diameter of the circle is ð, Jarrod asked how this could be true for all circles. Of the following, which provides the best basis for explaining why this is true for all circles?
Friday, May 11, 2012 at 11:55am by joe
Grammar
Determine if the following sentence employ the correct use of commas and apostrophes.TRUE=correct False=incorrect Inside of the patient's nose is crusty and clear with blood-tinged discharge; however, the patient has no complaints of breathing problems. Answer: True
Wednesday, May 11, 2011 at 2:01am by Leslie
sociology
Which of the following is(are) true of culture a. participation in the elite forms of culture is expensive b. familiarity with different cultural forms stems from patterns of historical exclusion c.historical exclusion has prevented integration into networks that provide ...
Saturday, June 14, 2008 at 9:49am by Jack
math: real numbers
Determine whether the following statement is true or fase. If true, provide a proof; if false, provide a counterexample. If S is a bounded set of real numbers, and S contains sup(S) and inf(S), then S is a closed interval.
Tuesday, April 10, 2007 at 4:26pm by sara
Math
In logic, "or" means _either one_ of them is true. Maybe one is true, maybe the other, maybe both, but as long as at least one of the statements is true, then the whole statement is true. Given that, cal you see which statements are true? We define "prime number...
Tuesday, October 20, 2009 at 12:29pm by jim
mathematics
Determine whether the statement is true, false, or sometimes true. 1) If x and y are both integers, 1) then (-x)3 = -x3 A) Sometimes true B) True C) False
Friday, September 4, 2009 at 7:14am by righteous dude
Spanish
Please help. Thank You. 1. The stem-changers in the current section are similar to those in the previous section except these stem-change "o" to "oe." A.) true B.) false 2. Of the following, which is not a stem-changing verb? A.) almorzar B.) comer C.) ...
Tuesday, February 26, 2013 at 2:53pm by James
english
This museum should create more dinosaur exhibits. True False 2. Daily exercise is one of the best things you can do to stay healthy. True False 3. I think that rainy days are just awful. True False 4. We should all pay more attention to local organizations that help the poor. ...
Sunday, February 7, 2010 at 6:25am by jean
physiology
Is the following statement True or False, and Why? The presence of a hyperosmotic solution in the duodenum will stimulate gastric emptying. True; this helps to speed up the absorption process True; the hyperosmotic solution draws contents in from the stomach False; this causes...
Monday, April 26, 2010 at 6:54pm by Anna
Physical Ed
11. Disagreements are a normal part of life. (1 point) True False 12. Talking to a trustworthy adult is the best way to stop sexual abuse and get help. (1 point) True False 13. Some conflicts are made worse by peer negotiation. (1 point) True False 14. Feeling negatively about...
Wednesday, February 6, 2013 at 1:58pm by Someone
Equivalent Fractions
1/2= 5/10 <----- True 3/4= 12/16 <----- True 7/8= 21/24 <----- True 3/7= 15/35 <----- True 1/20= 4/40 <------ False
Wednesday, October 3, 2012 at 5:52pm by Neil
chemistry
H | HC-H | HNH .. a is true. b is not true; there are 4 covalent bonds to C. c is not true. There is no double bond. d and e can't be right
Thursday, September 9, 2010 at 3:53pm by DrBob222
Chemistry
Did you omit the charge; should it be HCO2^- 1 is not true. 4 is not true. Both 2 and 3 are true.
Sunday, November 11, 2012 at 10:56pm by DrBob222
algebra
If you have a^ + b^= (a+b)(a+b). Is this always true, never true, or sometimes true? Explain.
Wednesday, November 2, 2011 at 4:34pm by christy
Economics/Math
take a shot, what do you think. Hint: true, true, true
Tuesday, November 3, 2009 at 11:02pm by economyst
geometry
Is it always true, sometimes true, or never true that two complementary angles have a common vertex?
Thursday, May 27, 2010 at 11:40pm by Lisa
geometry
The <-> operator is true only if both operands have the same truth value, i.e. TT or FF. Given p is false and q is true, then ~p is true and ~q is false, therefore ~p <-> ~q is false. Since the conditional p->q is false only if p is true and ...
Friday, June 1, 2012 at 10:07pm by MathMate
math
not true counterexample 5 > -6 ----> true then 5^2 > (-6)^2 ?? 25 > 36 ----> False the statement is true only for positive values of x and y, so it is "sometimes true"
Monday, July 20, 2009 at 12:37am by Reiny
Algebra
40. The graph of the following system yields perpendicular lines. x + 2y = -10 -4y = 2x + 20 (True?) 47. The graph of the following system yields parallel lines. 2y = -10 + x -4y = 2x + 20 (True) 48. The graph of the following system yields parallel lines. x - 2y = 1 y = -3x...
Friday, May 6, 2011 at 2:35pm by mysterychicken
math
Is it always true, sometimes true, or never true that a regular quadrilateral have 2 or more obtuse exterior angles?
Sunday, October 18, 2009 at 9:55pm by Brandi
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