Answer the question(s) based on the following situation: Over the last 80 years records have been kept of the annual rainfall in the Tasmanian desert. The distribution of annual rainfall is approximately normal and has no outliers. The minimum of 2.5 inches of rain occurred in 1959; the maximum of 9.7 inches of rain occurred in 1938.The standard deviation of the rainfall distribution is approximately
A. 2.7 inches.
B. 1.2 inches.
C. 1.8 inches.
D. 3.6 inches.
E. none of these
Answer: B
Mathematics
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Solve the problem.The figure shown here shows a rectangle inscribed in an isosceles right triangle whose hypotenuse is 10 units long. Express the area A of the rectangle in terms of x.
A. A(x) = 2x(x - 5) B. A(x) = 2x2 C. A(x) = x(5 - x) D. A(x) = 2x(5 - x)
Mathematics
Solve the right triangle if ?a= 47°, ?C= 90° and b = 41.9.
What will be an ideal response?
Mathematics
Solve the equation. Use natural logarithms. When appropriate, give solutions to three decimal places unless otherwise indicated.ln ex = 14
A. {3.742} B. {14} C. {5.151} D. {2.639}
Mathematics
Solve the equation for y.x = 3y + 2
A. y = 3x - 2
B. y = x - 
C. y = 
x - 2
D. y = 
Mathematics