Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log4 4-15
A. -60
B. 1
C. 4
D. -15
Answer: D
Mathematics
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Find the standard equation of the ellipse shown in the figure. Identify the coordinates of the vertices, endpoints of the minor axis, and the foci.
A. 
+ 
= 1; V(0, ±4); U(±3, 0); F(±4, 0)
B. 
+ 
= 1; V(0, ±4); U(±3, 0); F(0, ±
)
C. 
+ 
= 1; V(±3, 0); U(0, ±3); F(±5, 0)
D. 
+ 
= 1; V(±4, 0); U(0, ±3); F(±
, 0)
Mathematics
Calculate 
.A = 
A. 15 B. -3 C. 105 D. -105
Mathematics
Provide an appropriate response.Under what circumstances can a system of equations be solved more easily by graphing than be substitution?
What will be an ideal response?
Mathematics
Tell whether the statement is true or false.Some rational numbers are irrational.
A. True B. False
Mathematics