Solve the problem.There are 1,424,459 active dentists living in a certain country. If 70.5% of these dentists are male, find (i) the percent of dentists who are female and (ii) the number of dentists who are female. Round to the nearest whole number.
A. (i) 29.5% female dentists;
(ii) 42,021,541 female dentists
B. (i) 70.5% female dentists;
(ii) 42,021,541 female dentists
C. (i) 70.5% female dentists;
(ii) 1,004,244 female dentists
D. (i) 29.5% female dentists;
(ii) 420,215 female dentists
Answer: D
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Prove that the equation is an identity.
= cos x
What will be an ideal response?
Solve.The equation that represents the proper traffic control and emergency vehicle response availability in a small city is 
where P is the number of police cars on active duty and F is the number of fire trucks that have left the firehouse in response to a call. In order to comply with staffing limitations, the equation 
is appropriate. The number of police cars on active duty and the number of fire trucks that have left the firehouse in response to a call cannot be negative, so 
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Graph the regions satisfying all the availability and staffing requirements, using the horizontal axis for P and the vertical axis for F. If 8 police cars are on active duty and 2 fire trucks have left the firehouse in response to a call, are all of the requirements satisfied?
A. 
; No
B. 
; Yes
C. 
; Yes
D. 
; No
Eliminate the parameter to obtain a Cartesian equation of the curve.x = 
, y = 2t + 5, 0 < t < ?
A. y = 2x2 + 5, 0 < x < ?
B. y = 2
- 5, 0 < x < ?
C. y = 2
+ 5, 0 < x < ?
D. y = 2x2 - 5, 0 < x < ?
Add or subtract as indicated.
+ 
A. 
B. 
C. 
D. 6x + 5