Subtract.-65 - (-30)
A. -35
B. 35
C. 95
D. -95
Answer: A
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?Which of the following does not describe a viable method to find the sum 3 + (-4)?
A.
?Let p = positive unit, and n = negative unit. 
+ 
--> four p's and four n's eliminate each other. Answer = n.
B.
?Let p = positive unit, and n = negative unit. 
+ 
--> Answer is 3p + 4n.
C.
?On a number line, start at +3 and move left 4 units. You arrive at -1.
D.
?On a number line, combining +3 - 4 will result in the same answer as 3 + (-4).
E.
?On a number line, combing -4 + 3 will result in the same answer of 3 + (-4).
Graph the equation. Include the coordinates of any local extreme points and inflection points.y = x + cos 2x, 0 ? x ? ?
A. local minimum: 
local maximum: 
inflection point: 
B. local minimum: (1.444, -0.246)
local maximum: (0.126, 1.031)
inflection points: (0.785, 0.393), (2.356, 1.178)
C. no local extrema
inflection point: 
D. local minimum: 
local maximum: 
inflection points: 
, 
Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos-1
A. ?
B. 1
C. 
D. No limit
Write the number in standard form.3 hundred thousands + 2 ten thousands + 6 hundreds + 6 ones
A. 320,660 B. 302,660 C. 320,606 D. 32,606