Use a graphing calculator to find the matrix product and/or sum.Find A(B + C).A = 
B = 
C = 
A. 
B. 
C. 
D. Does not exist
Answer: A
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Solve.A 15-foot fence on the property line would cast a 30-foot shadow on the shortest day of the year, and the north side of the apartment building is set back 80 feet from the property line. Find the maximum allowed height of the apartment building.
A. 51.33 ft B. 47.67 ft C. 40 ft D. 55 ft
Solve.When Milo got promoted at work, he received a 20% pay raise. He now earns 
per year. What was his annual salary before his raise?
A. $62,400 B. $52,000 C. $12,480 D. $10,400
Solve the application problem.The function F(C) = 
C + 32 is used to convert a Celsius temperature C to an equivalent Fahrenheit temperature. What Fahrenheit temperature is equivalent to a Celsius temperature of 10°C?
A. 86°F B. 104°F C. 50°F D. 68°F
Write the expression in the standard form a + bi.(9 + 4i)(9 - 4i)
A. 65 B. 97 C. 81 - 16i2 D. 81 - 16i