Find the exact value of without using a calculator.

A) 1.25
B) 5
C) 2
D) 3
E) 2.5


C) 2

Mathematics

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Write an equation of the line.

A. y = x + 7 B. y = 7x C. y = 7 D. x = 7

Mathematics

Find the standard form of the equation of the ellipse and give the location of its foci.Center at (-1, 1)

A.  +  = 1
foci at (-1 + 3, 1) and (-1 - 3, 1)
B.  +  = 1
foci at (- 3, 1) and (3, 1)
C.  +  = 1
foci at (-1 + 3, -1) and (-1 - 3, -1)
D.  +  = 1
foci at (1 + 3, -1) and (1 - 3, -1)

Mathematics

Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form. +  - 

A.
B.
C.
D.

Mathematics

Use the relation's graph to determine its domain and range. -  = 1  

A. Domain: (-?, ?) Range: (-?, -2) or (2, ?) B. Domain: (-?, -2] or [2, ?) Range: (-?, ?) C. Domain: (-?, -2] and [2, ?) Range: (-?, ?) D. Domain: (-?, ?) Range: (-?, ?)

Mathematics