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Keonya D. for all real numbers a and b, a(b*c) = ab *ac 5 Answers By Expert Tutors
Jehsuamo C. answered • 09/20/12 A Mathemagician, at your service! This statement is true for all real numbers and is known as the Commutative Property. It not only applies to multiplication, but to addition as well: a + b = b + a The other case you mentioned a(b*c) = ab*ac is false. There are certain other properties that are central to understanding algebra and working with real numbers that you may also learn depending on your level: Assiociative property: Given real numbers a, b, and c: (a +b) + c = a + (b +c) also, (a*b)*c = a*(b*c) Distributive property: Given real numbers a, b, and c: a*(b + c) = a*b + a*c a*(b + c) = (b + c) + ... + (b + c) [a times] = a*b + a*c Identity: Pretty states that there is a real number for addition and there is a real number for multiplication that doesn't interact with any other number for the respective operation. For addition the number is 0. 0 is know as the additive identity. For multiplication the number is 1, 1 is known as the multiplicative identity. Additive inverse: The number that you add to a given real number to get the additive identity 0. For example -1 is the additive inverse of 1, and 5/2 is the additive inverse of -5/2. 0 is the additive inverse of 0. Left
Cancelation: Given that an operation of addition or multiplication is taking place you can "undo" by using its inverse. a + 4 = 10 b * 7 = 21 The same can pretty much be said without lost of generality for right cancelation when we are subtracting and dividing on both sides we are really adding and dividing by the additive and multiplicative inverse. Trichotemy Law: given two arbitrary real numbers a and b, one out of the following three relationships must take place: either a < b, a = b, a > b. If you are not majoring in mathematics, the first five is pretty much all you need to know.
Jaison N. answered • 09/18/12 A PhD to Teach You Math and Physics Plug in numbers for a, b, c. Let a = 2, b = 1, and c = 3 and see for yourself! When you are trying to determine the validity of a mathematical proposition, create a few concrete examples as a check. Use the simplest numbers whenever possible.
Major S. answered • 09/19/12 College Graduate Wishing To Help All Achieve Success The commutative property of multiplication does state that a*b = b*a for all real numbers. However, a(b*c) is not equal to ab * ac for all real numbers. This is not an example of the distributive property. Distributive property a(b+c) = ab + ac or a(b-c) = ab - ac. a(b*c) = a*b*c which is not equal to a*b*a*c which is what ab * ac represents. This is not true for all real numbers. I say this because it is true for certain values of a, b, c, but not all values.
Nicole C. answered • 09/18/12 Increase confidence in math and science, chemistry, algebra II True. All real numbers is any positive or negative number, it just can't be a number with the i in it (imaginary number). a has to be the same on both sides of the equation, so does b and c both sides are the same, just written differently. If you distribute the left side you get the right side. So, if the numbers are the same on both sides, and the equations are the same on both sides, the answer will always be true
Lois P. answered • 09/18/12 Miss Lois -- Elementary School Tutor Ror all real numbers a and b, a*b is equivalent to b*a. This is indeed TRUE! Google Commutative Property for more details, but the basics are this: Commutative property: When two numbers are multiplied together, the product is the same regardless of the order of the multiplicands. For example 4 * 2 = 2 * 4 As for the sub question for all real numbers a and b, a(b*c) = ab *ac, this is also TRUE. Google Distributive property for more details, again the basics are as follows: Distributive property: The sum of two numbers times a third number is equal to the sum of each addend times the third number. For example 4 * (6 + 3) = 4*6 + 4*3 Still looking for help? Get the right answer, fast.ORFind an Online Tutor Now Choose an expert and meet online. No packages or subscriptions, pay only for the time you need. Is statement XX 1 true for all real numbers?Is the statement [x]= [x+1] true for all real numbers? Explain. No. The statement is not true for all real numbers.
Which expression is the sum of cubes?A polynomial in the form a 3 + b 3 is called a sum of cubes.
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