Find two positive real numbers whose product is a maximum. The sum is 140.
?
A. 90, 50
B. ?100, 40
C. ?70, ?70
D. ?80, 60
E. ?10, 130
Answer: C
You might also like to view...
Provide an appropriate response.Determine which technique would be the best initial step to verify each of the four identities below. Each of the identities involves a different technique as the initial step. 
= 
1 - 
= cos2 ? 
= 2 cot ? - 5 csc2 ? + tan2 ? - cot2 ? = sec2 ?Which of the following is not one of the four techniques required? I. Rewrite the
expression in terms of sines and cosines. II. Multiply the numerator and denominator of a quotient by the conjugate of the denominator. III. Use a Pythagorean identity. IV. Separate a quotient into one or more quotients. V. Use factoring techniques. A. technique V B. technique II C. technique III D. technique IV
When changes occur in the activities that help create new knowledge or in the activities that help transform new knowledge into new processes, products or materials - these changes are known as ____.
A. demographic trends B. political trends C. socio-cultural trend D. technological trends
Provide an appropriate response.Solve the following system algebraically: 
What will be an ideal response?
Find an equation of an ellipse satisfying the given conditions.Foci at (-4, 0), (4, 0); vertices at (-7, 0), (7, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1