Solve the problems.Jack is currently driving into a headwind (17% decrease). If his normal mileage is 28 mpg, what will his car's mileage be in the headwind? Round your answer to the nearest tenth.
A. 45 mpg
B. 7.3 mpg
C. 28 mpg
D. 23.2 mpg
Answer: D
Mathematics
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Solve the equation. If the equation is an identity or a contradiction, state this.10x - 7 = 50 - 9x
A. x = 57 B. x = -3 C. x = 3 D. x = 43
Mathematics
Find the vector projv u.v = k, u = 2i + 6j + 9k
A. 
i + 
j + 
k
B. 
k
C. 
i + 
j + 
k
D. 9k
Mathematics
Write the equation as f(x) = a(x - h)2 + k. Identify the vertex.f(x) = 3x2 - 4x
A. f(x) = 3
2 - 
; 
B. f(x) = 3
2 - 
; 
C. f(x) = 3
2 - 
; 
D. f(x) = 3
2 - 
; 
Mathematics
Estimate the limit numerically.
?
?
A. ?1
B. 10
C. 
D. 0
E. 
Mathematics