<span>The set <span>EE</span> is said to be bounded above if and only if there is an <span><span>M∈R</span><span>M∈R</span></span> such that <span><span>a≤M</span><span>a≤M</span></span>for all <span><span>a∈E</span><span>a∈E</span></span>, in which case <span>MM</span> is called an upper bound of <span>EE</span>.A number <span>ss</span> is called a supremum of the set <span>EE</span> if and only if <span>ss</span> is an upper bbound of <span>EE</span> and <span><span>s≤M</span><span>s≤M</span></span> for all upper bounds <span>MM</span> of <span>EE</span> (In this case we shall say that <span>EE</span> has a finite supremum <span>ss</span> and write <span><span>s=supE</span><span>s=supE</span></span>.</span>
Let <span><span>E⊂R</span><span>E⊂R</span></span> be nonempty.
<span>the set <span>EE</span> is said to be bounded below if and only if there is an <span><span>m∈R</span><span>m∈R</span></span> such that <span><span>a≥m</span><span>a≥m</span></span> for all <span><span>a∈E</span><span>a∈E</span></span>, in which case <span>mm</span> is called a lower bound of the set <span>EE</span>.A number <span>tt</span> is called an infimum of the set <span>EE</span> if and only if <span>tt</span> is a lower bound of <span>EE</span> and <span><span>t≥m</span><span>t≥m</span></span> for all lower bounds <span>mm</span> of <span>EE</span>. In this case we shall say that <span>EE</span> has an infimum <span>tt</span> and write <span><span>t=infE</span></span></span>
I do believe that Ben's statement is always true because of the fact that when you divide a positive by a negative, or a negative by a positive, it will always equal a negative. For the equation 5.4/-6.8 the answer is -0.79411764705. And the equation -6.8/5.4 is equal to -1.25925925926. It will always equal to less then zero, except when you divide by zero.
Answer:
455 miles driven in 7hrs
Step-by-step explanation:
715miles divided by 11 hrs= 65 miles per hr
65 miles multiplied by 7 hrs= 455 miles driven in 7hrs
Answer:
5/6
Step-by-step explanation:
Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators.
Answer:
A
Step-by-step explanation:
