0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How do you rationalize the denominator in this expression 3 over quantity of 6 minus square root of 5?
Multiply the expression (fraction) by (6 + √5)/(6 + √5) (which is 1 and will not change its value).3/(6 - √5) x (6 + √5)/(6 + √5)= 3(6 + √5)/(6 - √5)(6 + √5)= 3(6 + √5)/(36-5) = 3(6 + √5)/31= 3/31(6 + √5)Remember:(a + b)(a - b) = a2 - ab + ab - b2= a2 - b2So if either a or b contains a square root, a2 and b2 will not, and so a2 - b2 will not!
How can you write the expression a plus b plus a-b in equivalent form not involving absolute value.?
The expression (a+b) + (a-b) can be rewritten as a + b + a - b = 2a.There is no need to use absolute value.
Start with b add x and then multiply the result by 5 what expression do you get?
The expression is: 5(b + x)
How do you solve this equation a plus 7 equals 10 plus b?
you can't get a value for either a or b from just the information you have given - you can only get an expression for what a is in terms of b and vice versa; a=3+b b=a-3
Simplify the expression 2a -3 plus 4b - 2a -b -3 plus 5?
3b -1
3 times the sum of b and 5?
The algebraic expression is 3(b+5).
What is the value of the expression when a 0 and b 3?
It would depend on the expression that you have in mind but chose not to share!
What is five divided by the sum of a and b?
You can write that as 5 / (a + b), or as a fraction, with the 5 on top, and a + b at the bottom. The actual value of this expression will depend on the values of "a" and "b".
What is algebraic phrase?
Algebraic phrase is a mathematical expression which substitutes characters and letters for a certain numeric value. For example a=b+c, if b=2 and c=3, then a=5.
A verbal expression for 5 a-b?
A verbal expression for 5 a-b is that it is 5 is multiplied by the difference between a and b.
Which is the value of 3b - b when b 5?
-2
A plus b?
The value of a + b depends on the values of the individual variables.The expression a + b cannot be simplified.
How can you write the expression a plus b plus a-b in equivalent form not involving absolute value.?
The expression (a+b) + (a-b) can be rewritten as a + b + a - b = 2a.There is no need to use absolute value.
How do you rationalize the denominator in this expression 3 over quantity of 6 minus square root of 5?
Multiply the expression (fraction) by (6 + √5)/(6 + √5) (which is 1 and will not change its value).3/(6 - √5) x (6 + √5)/(6 + √5)= 3(6 + √5)/(6 - √5)(6 + √5)= 3(6 + √5)/(36-5) = 3(6 + √5)/31= 3/31(6 + √5)Remember:(a + b)(a - b) = a2 - ab + ab - b2= a2 - b2So if either a or b contains a square root, a2 and b2 will not, and so a2 - b2 will not!
If the expression 5x 3 2 is written in the form ax b what is the value of a plus b?
The values of a and b would be assumed to be 3 and 10 or 2 and 15.
What are the factors of this expression 5b 15?
5b + 15 = 5(b + 3)
What is 2a plus b?
2a+b=2a+b. Without a value for a and b, the expression has no value.
