# decide whether each equation is true or false.For each true equation,write the number property shown by the equation.0+6=6

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### equations

decide whether each equation is true or false.For each true equation,write the number property shown by the equation.0+6=6

### math

Nora and Julia are both participating in a food eating tournament. They represent the number of hot dogs, h, each of them eats in t seconds in the equations shown. Use the equations to answer the question. Nora’s equation: t=4.8h Julia's equation: t=5.2h For each of the ...

### calculus

determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false a) the function f(x)=3/2 +cx^-2 is a solution of the differential equation xy'+2y=3 b) the differential equation dy/dx= (f(x)g(y...

### 6th Grade Math

If you are given a true equation and you add the same number to each side, the resulting equation is also a true equation. If you are given a false equation and you add the same number to each side, will the resulting equation be a true equation or a false equation?

### Math - True or False

True or False: 1. f(x) = -x^3 + x + 1 is an odd function 2. f(x) = x^3 -ax^2 + bx represents a cubic equation having no constant term ...(I'm thinking true?) 3. If f(x) = x/x+2 then f^-1 (x) = 2x/1-x ...(my guess is false?) 4. The equation x^3 - 12x + 16 = 0 has a double root ...

### 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 ...

### Math

True or false: If a is any positive real number, the graph of y=a^x will go through the point (0,1). True or false: x^3+2x^2 is an exponential equation because it contains exponents. I got true for both of them is that right?

### math

can someone correct this for me... solve: -4(2x - 3) = -8x + 5 my answer: this equation has no solution because they don't equal i get 0=-7 -4(2x-3)=-8x+5 -8x+12=-8x+5 0(x)=-7 So am I correct You are right, let me explain a bit more. When you write down: -4(2x - 3) = -8x + 5 ...

### Math

Determine whether each equation is true for all x for which both sides of the equation are defined. If it is true, support your conclusion with a sketch using the unit circle. If it is false, give a counterexample. inverse sin(-x)=-inverse sin(x) inverse cos(-x)=-inverse cos(x...

### Mr.mr

Make up two equations, one that is true and one that is false. Do not state which equation is true and which is false. 2. Create an example of an open equation that uses the variable x and would require two or more steps to solve. Can someone give me an example of 2 step equation

### algebra

1. is he equation true , false, or open 5x+2=6x+11 open, there is a variable *** true, he expression are the same for all values of the variables false, the expressions are never the same which value is a solution of the equation 2-8x= -6 1** 1/2 -1 8 which ordered pair is a ...

### algebra

Give an example of an open equation? my answer is, x + 4 = 7 Until the value of x is found, it is unknown whether the equation is true or false. am i right?

### algebra

Give an example of an open equation? my answer is, x + 4 = 7 Until the value of x is found, it is unknown whether the equation is true or false. am i right?

### Math

1. Is the equation true, false, or open? 5x+2=6x+11 a. Open; there is a variable b. True; the expressions are the same for all values of the variables c. False; the expressions are never the same 2. Which equation is an identity? a. 8-(5x+2)=-5x-6 b. 7z+10-z=8z-2(z-5) c. 8m-4=...

### Math. idk?

6. Name the like terms in the following expression. 5m + 4 + 3m + 6p 7. Write an equation for the following: Twelve times h equals one hundred twenty minus thirty-six.State whether the equation is true, false, or an open sentence. Explain. 8. Use the Distributive Property to ...

### calculus

Determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false. a- if f is a function of x and y and a is a real number, then f(ax, ay)= af(x,y). b- if fx(a,b) < 0, then f is decreasing with ...

### French Check Ms. Sue

Please check this. Thank you! 1. France is a country in Asia. true false*** 2. There are many countries in Africa where French is one of the principal languages of the people. true false 3. Québec, in Canada, is a French speaking part of Canada. true*** false 4. The French ...

### Algebra

1.Is the equation true false or open ? 9p+8=10p+7 A. Open; there is a variable B. True; the expression are the same for all values of the vaiables. False; the expression are never the same 2.Which is the solution of the equation 5-4x=-3? A.0 B.2 C.-3 D.1/4 3.Which order pair ...

### Math

write the converse and contrapositive for the conditional statement below. decide whether each of the three statements is true or false. provide a counterexample for any false statement. If n is a prime number, then n+1 is an even number

### Math

write the converse and contrapositive for the conditional statement below. decide whether each of the three statements is true or false. provide a counterexample for any false statement. If n is a prime number, then n+1 is an even number

### 7th grade health Ms. Sue please thanks

True/False Indicate whether the statement is true or false. 11. A person with good self-esteem is willing to try new things. (1 point) True False 12. Stress can be positive or negative. (1 point) True False 13. Giving away prized possessions can be a sign of a person ...

### Math

Choose any number for p. Determine whether the following equation is true. (2p-3)(p+4)=2p^2-5p-12 I don't think this is true. Am I correct?

### Algebra

(7.8*10 to the 12th power)*800=(7.8*10 to the 10th power)*80,000 Directions:tell whether each equation is true or false. if false, write the inequality in like terms I don't remember how to start multiplying.

### math

Indicate whether the following statement is True or False The number -3 is an integer and a rational number. True False Is the answer True?

### math

Indicate whether the following statement is True or False The number -3 is an integer and a rational number. True False Is the answer True?

### HISTORY

True or False Native American cultures generally had no concept of private property. I'm not sure whether to say true or false but I want to say false because Native Americans were aware of private property, they just weren't obsessive and greedy with it like the Europeans.

### math

compare and contrast: below are two equations. solve each equation and compare the two solutions. choose the statement that is true about each solution. equation #1 2x-3=-17 5x+3=12 A. equation #1 and equation #2 have the same number of solutions B. equation #1 has more ...

### 7th grade health true or false

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...

### 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...

### Math

how do you know whether an equation is true, false, or an open sentence?

### Chemistry (Check)

Classify each of these statements as always true, sometimes true, or never true. __ST___13.In an equation, a substance is shown to be in the gaseous state by placing an upward-pointing arrow after its formula. ___ST___14. Atoms are destroyed in a chemical reaction. ___AT____15...

### Math (pre calculus)

State whether the given equation is true for all values of the variables (disregard any value that makes a denominator zero) equation one (2/ 4 + x) = (1/2) + (2/x) equation two (1 + x + x^2 / x) = (1/x) + 1 + x

### health!

True or False. Washing your hands can help protect you from dangerous pathogens True True or False. People die from colds each year True True or False. Infectious diseases are caused by organisms or viruses that enter and multiply within the human body. True True or False. ...

### math

Indicate whether each statement is true or false by checking the appropriate box in the table below. a. 2x is a factor of the expression (2x + y ). True or False b. (2x + y ) is a factor of the expression 3(2x + y ). True or False c. (2x + y ) is a sum of two terms. True or ...

### English

1.) Anyone can publish information on the Internet without fact-checking it. A.) True************************ B.) False 2.) Public records are most likely to contain valid information than secondhand reports. A.) True******************************** B.) False 3.) The ...

### 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 ...

### Spanish 3 Homework.

Hello. For these questions I have to specify whether these sentences are in the correct Spanish form. 1. “Tú das la tarea a tu maestro.” con pronombres es “Tú le la das.” True or false **FALSE 2. “El hombre manda un mensaje a su esposa.” con pronombres es “Él ...

### math

Indicate whether each statement is true or false by checking the appropriate box in the table below. a. 2x is a factor of the expression (2x + y ). True or False b. (2x + y ) is a factor of the expression 3(2x + y ). True or False c. (2x + y ) is a sum of two terms. True or ...

### math

Indicate whether each statement is true or false by checking the appropriate box in the table below. a. 2x is a factor of the expression (2x + y ). True or False b. (2x + y ) is a factor of the expression 3(2x + y ). True or False c. (2x + y ) is a sum of two terms. True or ...

### Sicnece

A skeleton equation is not a balanced equation.- Is this sometime true, never true or always true? Can't there be some skeleton equation that is already balanced, thus it sometime true? Thanks

### Algebra

State whether the equation is true, false, or an open sentence. Show your work. 3(2 + -8) = 3(-6 + 12) x + 5 = 22

### Math (Updated)

Please tell me if these answers are correct: 1. Is ( 0, 3) a solution to the equation y = x + 3? Yes No 2. Is ( 1, -4) a solution to the equation y = -2x? Yes No 3. Look at the following points: ( 4, 0) ( 3, -1) ( 6, 3) ( 2, -4) Which are solutions to y = x - 4 (2 correct ...

### Discrete Math

True or False? Homogeneous linear recurrence equations are linear combinations of power functions. I think the answer is false because although a homogeneous linear recurrence equation is a linear combination, it is composed of constant coefficients. However to solve this ...

### Government

1. The main purpose of a legislature, whether it be the Indiana General Assembly or the US Congress, is to MAKE laws. True False 2. Indiana's two US Senators are Richard Lugar (R) and Dan Coats (R) True False 3. Currently in the US House of Representatives, There are 246 ...

### math

is this equation is a linear equation [x + 2y -3z / e^2 + In(2) =0.]true or false

### Fitness (Check answers)

6) Gang member often have weapons and are involved in violence. TRUE OR FALSE ~ (my answer is TRUE) 7) Being disruptive in class and getting angry easily could be sign of abuse. TRUE OR FALSE ~ (my answer is FALSE) 8) People with high self-esteem are prone to depression. TRUE ...

### HEALTH HELP PLEASE!!

Fats help maintain your cell membranes. (1 point) True False 12. Your body does not use energy when you sleep. (1 point) True False 13. People with anorexia nervosa eat large amounts of food and then purge. (1 point) True False 14. Your body image is the way others see your ...

### Math

Is the equation true, false, or open? 9p + 8 = 10p + 7 I think it's true... Am I correct???

### Physics Please check my answers

1. A fluid can only be a liquid. True << False 2. One atmosphere is equal to 14.7 psi. True << False 3. In a fluid, pressure depends on the density of the fluid and the depth. True False << 4. Pascal's Principle says that the buoyant force on an object ...

### Algebra II

1) There is a solution to x = -(y-5)^2 and x = (y -5 )^2 + 7 a) true b) false 2) There is no real solution to y = -1 and y = x^2 + 9 a) true b) false 3) the vertex of the graph of y = 3(x+ 9)^2 + 5 is a minimum value ? a) true b) false 4)find the center and radius of the ...

### History

The Magna Carta laid the foundation for a written social contract between the government and the people. True* False It protected the rights and property of all those considered to be free men. True * False It limited the king's power to tax without the consent of his free ...

### Physics Please check my answers

1. Complete reflection is the special case of refraction at an angle of 180. True. False. 2. A resonant frequency is the same as a natural frequency. True. False. 3. For a standing wave, the number of segments is an integer equal to the number of half-wavelengths. True. False...

### Math

Determine whether the statement is true or false. The lines with equation ax+by+c1=0 and bx-ay+c2=0, where a ≠ 0 and b≠ 0, are perpendicular to each other. ______________________________________________ True. The slopes of the lines are m1 and m2 respectively; m1=b...

### math

3. Indicate whether each of the given statements could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile. (True or False) b. The median is greater than the first quartile. (True or False) c. The ...

### math

3.Indicate whether each of the given statements could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile. (True or False) b. The median is greater than the first quartile. (True or False) c. The ...

### Algebra

I've been stuck on this for a while. State whether the equation is true false or an open sentence. Show your work. 3(4+-5)=3(-6-2)

### 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 ...

### Math.

1) Find d in simplest radical form. Right square pyramid with equilateral triangular faces has 8 on all sides A) 4ã2 B) 8ã2 C) 4ã3 D) 8ã3 #2) Decide whether the statement is true or false. The sides of a regular polyhedron, although having to be the same polygon, ...

### Algebra

Is this equation true or false? Why? 20-4ã2=16ã2 With like radicands should I add the 4 to the other side of the equation? I'm really lost. Can someone please explain this to me?

### math

Write an equation that uses 18 - ? and 10 + 2. Explain how to decide which numbers would make it true.

### Calculus

True or false: If f(x) is continuous on the interval [a,b] & if the definite integral of f(x) over this interval has value zero, then the equation f(x)=0 has at least one solution in the interval [a,b]. True or false: If f(x) is continuous everywhere and F(x)= int from 0 to x ...

### Chemistry

These are all true or false questions, and I think some of my answers may be wrong. Could someone please check them for me? 1) All stoichiometry calculations are based on STP conditions. (True) 2. Given the amount of reactant, you must use coefficients from the balanced ...

### science

Let , , and be disjoint subsets of the sample space. For each one of the following statements, determine whether it is true or false. Note: "False" means "not guaranteed to be true." a) True FalseStatus: unsubmitted b) True FalseStatus: unsubmitted c) True FalseStatus: ...

### Algebra

1. Choose the correct solution in roster form. N is the set of natural numbers that are factors of 12. {1, 2, 3, 4, 6} {1, 2, 3, 4, 6, 12} {1, 2, 3, 4, 5, 6, 8, 12} *this is my answer {1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12} 2. Write the solution to the inequality in set-builder ...

### Geometry

Tell whether each statement is true or false. Then write the converse and tell whether it is true or false. 28. P is the midpoint of segment GH implies that GH = 2PG I have this so far. p (hypothesis): P is the midpoint of segment GH, q (conclusion): GH = 2PG You don't need to...

### Math

1. What is the distance between the points (1, 4) and (4, 8)? I said Distance = 5 2. Find the slope between (1, 4) and (4, 8) I said 4/3 3. Are the expressions (4x+4)/4 and x+1 equivalent? I said Yes 4. Simplify (x+y)2 x2 + 2xy + y2 5. Is (x – y )2 = x2 – y2? No. It is ...

### Career

23.)The service that keep house appliances running are called utilities True or False 24.)Friends & family are often handy sources of valuable information about costs of living true or False 25.)Insurance is intended to protect you against major financial setbacks True Or ...

### mathematics

In a mathematical equation, the coefficient is A. the numeric value of the unknown that makes an equation true. B. the term brought from one side of an equation to the other by performing the opposite operation. C. a number or quantity placed before another quantity to ...

### Fitness (Check answers)

1) Sitting in class wearing ear buds during a lecture is effective listening. TRUE OR FALSE ~ (my answer is FALSE) 2) Defense mechanisms should be used as often as possible to deal with uncomfortable emotions. TRUE OR FALSE ~ (my answer is FALSE) 3) Daily decision are often ...

### Science

Hi. Could you Please check my answers? I just want to make sure they are correct. Thanks for the help in advance :). True or false: All matter on Earth contains energy- true? True or false: the molecules in frozen water are in motion- true? True or false: ice is too cold to ...

### 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

### math

a) 3(x+1)+x+2=2(2x+1)+3 I distributed the equation and got 5=5 as my final answer. b) DON'T UNDERSTAND is the resulting equation from part (a) always true,sometimes ture, or never true? Explain your reasoning.

### chemistry

I wanted to check my True and False Chemistry HW. I am not 100% they are correct. 1.the number of neutrons in an atom is reffered to as its atomic number False 2.the periodic table is arranged by increasing atomic number True 3.atomic number is equal to the number of electrons...

### math

Suppose that someone said that the equation connecting points (-1, 1) and (2, 3) is y = 2/3 x + 5/3 This person wants to know whether the line represented by this equation will contain point (6, 9). Identify two ways by which this person can decide whether the graph of the ...

### math

Suppose that someone said that the equation connecting points (-1, 1) and (2, 3) is y=2/3x+ 5/3. This person wants to know whether the line represented by this equation will contain point (6, 9). Identify two ways by which this person can decide whether the graph of the ...

### 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 ...

### Algebra 2 help :)

Any number in the form of a+-bi , where a and b are real numbers and b not equal 0 is considered a pure imaginary number. TRUE OR FALSE The minimum value is the smallest y-value of a function. T RUE OR FALSE i2 = square root of -1. TRUE OR FALSE Complex numbers can be graphed ...

### Algebra

Is -7 + 9 = -9 + 7 true, false, or open? a. true b. false (this one?) c. open Is 4x - 3 = 19 true, false, or open? a. true b. false c. open (this one?) Which of the following is a solution to the equation 16 = 4x - 4? a. -5 b. -4 c. 5 (this one?) d. 16

### algebra 1

Is -7 + 9 = -9 + 7 true, false, or open? a. true b. false (this one?) c. open Is 4x - 3 = 19 true, false, or open? a. true b. false c. open (this one?) Which of the following is a solution to the equation 16 = 4x - 4? a. -5 b. -4 c. 5 (this one?) d. 16

### Trigonometry

a. Use graphs to decide if the equation is an identity. b. If the equation is not an identity, find a value of the variable that makes the equation false. sin(pi/2+Beta)=1+sinBeta

### math

True or False. A data set resulted in a regression equation of Y = 17.08 - 1.16x From the equation we can determine that the X variable is directly related to the Y variable.

### Algebra

True or False. If a line L1 has equation y = mx + b, where m and b are constants with m ‚ 0,then an equation of a line L2 perpendicular to L1 has the form , where C is a constant. L2: y= -1x +C

### 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 ...

### grammar

Can you please tell if the follong questions are true or false (fragment) 1. That movie, one of my favorites, true or false? 2.-The local baseball team, needing a good picher true or false? 4.- Using a flashlight, he looked under the bed for his shoes true or false, thank you

### Math

1. The quadratic equation -3x^2 – x = 10 has two real solutions. (true or False) Justify your answer. 2. If (2x – 3) (x + 5) = 8, then either 2x – 3 = 8 or x + 5 = 8. (True or False) Justify your answer.

### PHYSICS` HELP!! Please

Really lost on how to explain these whether true or false!! HELP! Much appreciated Write True or False. If False, Explain why! 1. In a position vs. Time graph, a line whose slope is negative represents an object that is slowing down. Answer: I circled True but it's not. Can ...

### Calculus

True or false. 1. If F'(x) = G'(x) on the interval [a,b] then F(b)-F(a) = G(b)-G(a). I think it's true but I just want to check my reasoning. F'(x) = G'(x) means that F(x) and G(x) differ by a constant (which may be 0). When the subtraction is done to find the definite ...

### Grammar and Composition

please check my answers: Write true if the statement is true, and false if the statement is false. 1. An Etymology is a type of dictionary. False 2. An unabridged dictionary is a condensed version. False 3. Etymologies appear in [ square brackets ]. True 4. The symbol < ...

### Chemistry

1. A combination reaction may also be a displacement reaction. True or False 2. The combustion of an element is always a combination reaction. True or False For number 1, I first thought true, but then again, nothing is being displaced in a combination reaction, right? You are...

### Science

1: TRUE or FALSE? Elements are pure types of matter. 2: TRUE or FALSE? Atoms are made from molecules. 3: TRUE or FALSE? Chlorophyll is needed for cellular respiration. 4: TRUE or FALSE? Matter and energy flow through food chains. 5: TRUE or FALSE? Chemical compounds contain at...

### Math

Decide whether each statement is always true, sometimes true, or never true.

### ALGEBRA

The table below shows two equations: Equation 1 |3x - 1| + 7 = 2 Equation 2 |2x + 1| + 4 = 3 Which statement is true about the solution to the two equations? Equation 1 and equation 2 have no solutions. Equation 1 has no solution and equation 2 has solutions x = 0, 1. The ...

### Health

The legal drinking age in the US is 21. True * False The legal BAC for underage drivers is less than 0.4 True * False If you have food in your stomach, it will soak up the alcohol. True False* If someone takes an aspirin before they drink, it'll prevent a hangover. True False...

### helath help

11. Fats help maintain your cell membranes. (1 point)True False 12. Your body does not use energy when you sleep. (1 point)True False 13. People with anorexia nervosa eat large amounts of food and then purge. (1 point)True False 14. Your body image is the way others see your ...

### 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?

### Algebra

98. Solve the equation -49 = x - 50 x=1? 94. Determine if the following equation is a function: x=2 No? 92. Determine if the following equation is a function: y=5 No? 89. Solve for x in the equation: 6/7x - 6 = -2 I got x=28/3 86. Does the following set of coordinates make a ...

### algebra

Solve the equation and write down the property you use at each step to simplify the equation. Consider the equation: 4x + 11 = (5x + 34)/2. Be sure to show your work.. Thank You Jiskha..!! :)

### Chemistry

True or False? The reaction equation BaCO3(s)-> [Ba]2+ + [CO3]2- represents an acid/base equilibrium system. In the equation, the arrow is suppossed to be a double one with an arrow pointing in each direction.

### Geometry

Given: 7x + 2 = 2 + 5x – 6 Prove: x = –3 Given the equation 7x + 2 = 2 + 5x – 6, use the commutative property to rearrange the terms so that like terms are next to one another. This gives the equation 7x + 2 = 2 – 6 + 5x. Then, use the ____________________ to group the...