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Let Z be a nonnegative
Prove that if x and y are nonnegative real numbers, then (x+y)/2 ≥ sqrt(xy).
Use the technique of working backward from the
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asked by
Meg
1,259 views
If true, prove. If false, provide just a counterexample:
a. For every function f from nonnegative integers into nonnegative
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asked by
huing
507 views
Let $x$ and $y$ be nonnegative real numbers. Find the smallest real number $k$ such that
\[\sqrt{x} + \sqrt{y} \le k \sqrt{x +
1 answer
asked by
becky
150 views
When is the following a true statement ?
(a+b) = a + b if a and b are nonnegative.
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asked by
laura
333 views
When is the following a true statement?
�ã(a+b) = �ãa + �ãb if a and b are nonnegative.
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asked by
laura
368 views
How many nonnegative integer solutions does the equation x+y+z+t = 15 have?
1 answer
asked by
picklepeter
1,075 views
If /x/ = -x, then x mst be
A. Positive B. Nonnegative C. Negative D. Nonpositive E. Zero
1 answer
asked by
Anonymous
288 views
What is the ANSWER??
If /x/ = -x, then x mst be A. Positive B. Nonnegative C. Negative D. Nonpositive
2 answers
asked by
Anonymous
334 views
Let $x$ and $y$ be nonnegative real numbers. If $x^2 + 5y^2 = 30$, then find the maximum value of $x + y$.
1 answer
asked by
Fiona
42 views
Let $x$ and $y$ be nonnegative real numbers. If $x^2 + 3y^2 = 18$, then find the maximum value of $x + y$.
1 answer
asked by
Melanie
125 views