Find the exact solutions to the quadratic equation in the complex numbers.x2 + 225 = 0
A. ±15
B. -112.5i
C. 15i
D. ±15i
Answer: D
Mathematics
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Solve the application.To obtain a certain shade of paint, Peter mixed 2
gallons of white paint with 6 gallons of brown and 2
gallons of blue paint. How much paint did he have?
A. 3
gallons
B. 
gallon
C. 
gallon
D. 10
gallons
Mathematics
Find the product.(x - 4i)(x + 4i)
A. x2 - 16 B. x2 - 8x - 16 C. x2 + 8x + 16 D. x2 + 16
Mathematics
Calculate.5[ (9 + 3? 22) - 6( 8 - 3) ]
A. 255 B. 54 C. -150 D. -45
Mathematics
By graphing the function, visually estimate its domain and range.f(x) = 4x + 8
A. Domain: [0, ?); range: [0, ?) B. Domain: (-?, ?)s ; range: [0, ?) C. Domain: [0, ?) ; range: (-?, ?) D. Domain: (-?, ?); range: (-?, ?)
Mathematics