Express the number in decimal notation.8.1 × 105
A. 81,000
B. 8,100,000
C. 405
D. 810,000
Answer: D
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Solve the problem.The table shows the number of dollars spent in Country X (in millions) on environmental protection programs during the years 
through 
. Find the cubic model that is the best fit for this data. Round coefficients to three decimal places. 
A. f(x) = 0.005x3 - 0.102x2 + 0.805x + 4.697 B. f(x) = 0.007x3 - 0.105x2 + 0.805x + 4.397 C. f(x) = -0.010x2 + 0.446x + 5.759 D. f(x) = -0.010x2 + 0.346x + 5.253
A bullet is fired into the air with an initial velocity of 2,000 feet per second at an angle of 
from the horizontal. Find the horizontal and vertical vector components of the velocity. Apply the rules regarding the use of significant digits when determining your answers.
?
__________ ft/sec
?
__________ ft/sec
What will be an ideal response?
Find the value of the expression.
A. 
B. 
C. 
D. 
Add and subtract as indicated.-14 + 12 - 10 - (-3)
A. -9 B. 5 C. -15 D. -19