Sketch a vector v that models the given situation and express v as 
. An airplane flying northwest at a speed of 240 miles per hour.N
S
A.
v =  |
B.
v =  |
C.
v =  |
D.
v =  |
Answer: D
Mathematics
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Evaluate the integral.
A. 
cos8 ? + C
B. - 
cos10 ? + C
C. - 
cos9 ? + C
D. 
cos7 ? + C
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Find the coordinates of the vertex and x-intercepts for the quadratic function.f(x) = 4x2 + 16x + 21
A. vertex (2, 5) no x-intercept B. vertex (-2, 5) x-intercept (21, 0) C. vertex (2, 5) x-intercept (21, 0) D. vertex (-2, 5) no x-intercept
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Divide. Leave the answer in factored form when appropriate.
÷ 
A. 
B. 
C. 
D. 
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Solve the equation.log3(x - 4) = -2
A. 
B. {- 
}
C. 
D. {
}
Mathematics