Provide an appropriate response.What are the advantages and disadvantages of the quadratic formula as a method of solving quadratic equations?
What will be an ideal response?
Answers will vary. One possibility: The advantage is that it works for all quadratic equations. The disadvantage is that the complexity of the formula makes it time-consuming.
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Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log19
A. 
log195 - 2 log19y - 2 log19x
B. 6 log195 - 2 log19y - log196
C. log195 - log19y - log19x
D. 
log195 - 2 log19y - log19x
Simplify.- 
A. 11 B. -11 C. -11i D. 11i
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, 
< ? < ?Find cos 
.
A. - 
B. - 
C. 
D. 
Provide an appropriate response.Is the following expression undefined? 
Fill in the blank(s) with the appropriate word(s).