Identify the given number as "Rational", "Irrational", or "Not a real number". If the number is rational, give its exact value. If the number is irrational, give a decimal approximation to the nearest thousandth.
A. Irrational, 4.500
B. Rational, 3
C. Not a real number
D. Rational, 4.500
Answer: B
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Use the vectors u, v, w, and z head to tail as needed to sketch the indicated vector. 
z - v 
A. 
B. 
C. 
D. 
Subtract.6x4?+ 9x3?+ 1
A. 5x4 + 14x3 + x2 - 3x + 1 B. 5x4 + 4x3 - x2 - 3x + 1 C. 5x4 + 14x3 - x2 + 3x + 1 D. 5x4 + 14x3 + x2 - 2x
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, csc ? < 0Find cos(2?).
A. 
B. 
C. 
D. - 
Decide if the statement “If the sum of two angles is 90° then the angles are complimentary” is true or false. Then form its converse and decide if its converse is true or false. If both the statement and its converse are true, write the biconditional that is equivalent to both statements.
What will be an ideal response?