Use a calculator to find .
?
Please round the answer to the nearest ten-thousandth.
?

A. -1.2386
B. -1.2258
C. -1.2458
D. -1.2257
E. -1.2558

Answer: B

Mathematics

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Graph the quadratic function using its vertex, axis of symmetry, and intercepts.f(x) = -10x2 - 2x - 7

A. vertex 
intercept (0, 7) 

B. vertex 
intercept (0, -7)

C. vertex 
intercept (0, -7)  

D. vertex 
intercept (0, 7) 

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Solve the problem.Ken and Kara are 33 miles apart on a calm lake paddling toward each other. Ken paddles at 4 miles per hour, while Kara paddles at 7 miles per hour. How long will it take them to meet?

A. 2 hr
B. 3 hr
C. 22 hr
D. 11 hr

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Find the distance between the pair of points. Give an exact answer.(3, -1) and (7, 0)

A. 8 units
B. 9 units
C. 81 units
D.  units

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Add the numbers using the number line.-5 + 2  

A. -3 B. 3 C. -7 D. 7

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Mathematics