Use the graph to express the line in slope-intercept form.

A. y = - x - 4
B. y = x - 3
C. y = x - 3
D. y = -2x - 3


Answer: B

Mathematics

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State how many peaks you would expect for the distribution described.Sales of birthday cards over a one-year period

A. One B. None C. Three D. Two

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Refer to a triangle ABC.If A = 34°, B = (x + 61)°, and C = (x + 51)°, find B and C.

A. B = 39°, C = 73° B. B = 39°, C = 78° C. B = 68°, C = 129° D. B = 78°, C = 68°

Mathematics

Solve the problem.The life expectancy of inhabitants of a country can be approximated by the equation y = 0.305x - 385, where x is a year between 1940 and 2006 and y is age in years. Use this mathematical model to approximate life expectancy (to the nearest tenth of a year) in 1973.

A. 301.8 yr B. 216.8 yr C. 597.9 yr D. 563.3 yr

Mathematics

Solve the formula for the specified variable.M = ?r2hd for r

A. r = 
B. r =  
C. r = ± 
D. r =  

Mathematics