Identify the equation as either an identity or not.ln(cot ?) = ln(cos ?) - n(sin ?)
A. Identity
B. Not an identity
Answer: B
Mathematics
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Solve the problem.The range R of a projectile is related to the initial velocity v and projection angle ? by the equation 
where g is a constant. How is 
related to 
if v is constant?
A. 
= 
B. 
= - 
C. 
= 
D. 
= 
Mathematics
Simplify by combining like terms.-9x + (-3x)
A. 12x B. 6x C. -12x D. -6x
Mathematics
Solve the problem.Which of the following is closest to the value of 
?
A. 
B. 1000
C. 2
D. 500
E. 500!
Mathematics
Solve the problem. Use 3.14 as an approximation for ? where appropriate.A spherical tree ornament is to be painted in bright colors. If the ornament has a diameter of 2 cm, how much paint is needed?
A. 50.4 cm2 B. 33.5 cm2 C. 12.6 cm2 D. 16.8 cm2
Mathematics