Perform the indicated subtraction.4 - (-21)

A. -17
B. 17
C. 25
D. -25


Answer: C

Mathematics

You might also like to view...

Find the composite function for the given functions and state the domain. f ? g for f(x) = x and g(x) = - x

A. -x B. x C. 0 D. 1

Mathematics

Eliminate the parameter to obtain a Cartesian equation of the curve.x = 2 tan t, y = 5 sec t, 0 ? t ? 2?

A.  -  = 1, -? < x < ?
B. = x2 - 9, -? x ? 3
C. = 5-? < x < ?
D.  +  = 1, -? < x < ?

Mathematics

Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = -2x2 - 20x - 53 

A. vertex (-5, -3)
intercept (0, -53)
 
B. vertex (5, -3)
intercept 

C. vertex (-5, -3)
intercept 
 
D. vertex (5, -3)
intercept (0, -53)
 

Mathematics

Solve the inequality analytically. Support the answer graphically. Give exact values for endpoints.x2 - 4x - 5 ? 0

A. (-?, -1] ? [5, ?) B. [-1, 5] C. (-?, -1] D. [5, ?)

Mathematics