Solve.In its latest census, a country's population is calculated to be 1,456,276. Round this number to the nearest thousand.
A. 1,456,300
B. 1,456,280
C. 1,457,000
D. 1,456,000
Answer: D
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Find the length of the curve with the given vector equation.r(t) = (2t sin t + 2 cos t)i + (2t cos t - 2 sin t)j ; -4 ? t ? 5
A. 9 B. 82 C. 18 D. 41
The life expectancy E, in solar lifetimes, of certain stars depends on their mass M, in solar masses. The relationship is 
.
How does the life expectancy of larger stars compare with that of smaller stars? A graph of E versus M can help you answer this question.
?
A. Larger stars live 2.5 times as long as smaller stars. B. Larger stars have longer life expectancy. C. Larger stars have shorter life expectancy. D. All of the above.
Graph the equation. Include the coordinates of any local extreme points and inflection points.y = 
A. local minimum: (0, 0)
no inflection points
B. local minimum: 
no inflection points
C. local minimum: (0, 0)
inflection points: 
, 
D. local minimum: 
no inflection points
Provide an appropriate response.What real numbers x satisfy the equation 
= 
?
A. {x|x ? real numbers} B. {x|x ? integers} C. {x|x = 0} D. ?