Express the number 250,000 in scientific notation.
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Find the solution set for each inequality. Graph the solution set on a number line and write it in interval notation.|x - 2| + 4 ? 11
A. [9, ?)
B. [-5, 9]
C. (-?, -5] ? [9, ?)
D. (-5, 9)
Carli and Dale want to divide fairly the chocolate-strawberry cake shown below. The total cost of the cake was $18.00. Carli values strawberry and banana equally, but values chocolate twice as much as either of these put together. Dale values chocolate three times as much as he values strawberry. Further, he values strawberry twice as much as he values banana.
In Dale's eyes, the chocolate half of the cake is worth
A. $10.00 B. $12.50 C. $15.00 D. $12.00 E. none of these
Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 15, ? = 210°
A. v = 15
B. v = 15
C. v = 15
D. v = 15
Find the product.(n + 2)2
A. n2 + 4n + 4 B. n2 + 4 C. n + 4 D. 4n2 + 4n + 4