Solve the problem.A wire 20 feet long is to be cut into two pieces. One piece will be shaped as a square and the other piece will be shaped as an equilateral triangle. Express the total area A enclosed by the pieces of wire as a function of the length x of a side of the equilateral triangle. What is the domain of A?
What will be an ideal response?
A(x) = 
x2 - 
x + 25; {x|0 ? x ? 
}
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Which formula expresses the measure of each angle in an n-sided polygon? ?
A.
?180(n - 2)
B.
?180(n + 2)
C.
?
D.
?180(n - 2) ÷ 2
E.
?The number of sides decreased by two is divided by the number of sides.
Solve.An office pays its 5 clerical workers $220 per week, 2 secretaries $290 per week, and the office manager $360 per week. Write a mathematical statement showing the total salaries pair, then calculate this total.
What will be an ideal response?
Solve.13.496 + m = 38.339
A. 22.873 B. 24.933 C. 24.843 D. 24.836
Solve.Let's imagine that in 2001, a surgeon performs the first brain transplant, the only transplant performed that year. If in 2010, there are 1343 brain transplants, find an exponential growth function that fits the data. (Round decimals to three places.)
A. N(t) = e0.8, where t is the number of years after 2001. B. N(t) = e0.8t, where t is the number of years after 2001. C. N(t) = 1343e0.8t, where t is the number of years after 2001. D. N(t) = e0.8t, where t is the number of years after 2010.