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Which is a distributive property - 23a 1 6a 2 or- 23a 1 - 6a 1?
Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "times", "equals".
What is 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2?
16 + 20 + 14 = 50 = 12 + 14 +14 + 10
What two numbers would have a product of 108 and a sum of 23 at the same time?
Here's one way to work that out. Let's call the numbers "a" and "b" We're told: a + b = 23 ab = 108 We can take one of those two, solve it for either a or b, substitute it into the other, and solve for the other variable using our new equation: a + b = 23 b = 23 - a ∴ a(23 - a) = 108 -a2 + 23a = 108 a2 - 23a + 108 = 0 a2 - 23a + (23/2)2 = (23/2)2 - 108 (a - 23/2)2 = 529/4 - 432/4 (a - 23/2)2 = 97/4 a - 23/2 = ± √(97/4) a = (23 ± √97) / 2 So the two numbers that meet this condition are (23 - √97) / 2 and (23 + √97) / 2
What is the mean of 2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 1 plus 2 plus 2 plus 2 plus 1 plus 2 plus 2 plus 2 plus 2 plus 2 plus 2?
To find the mean (or average) you first add up the numbers you have. NOTHING 1.88
What is sin23A minus sin7A upon sin2A plus sin14A if A equals pi upon 21?
Using the identity, sin(X)+sin(Y) = 2*sin[(x+y)/2]*cos[(x-y)/2] the expression becomes {2*sin[(23A-7A)/2]*cos[(23A+7A)/2]}/{2*sin[(2A+14A)/2]*cos[(2A-14A)/2]} = {2*sin(8A)*cos(15A)}/{2*sin(8A)*cos(-6A)} = cos(15A)/cos(-6A)} = cos(15A)/cos(6A)} since cos(-x) = cos(x) When A = pi/21, 15A = 15*pi/21 and 6A = 6*pi/21 = pi - 15pi/21 Therefore, cos(6A) = - cos(15A) and hence the expression = -1.
