Use the graph of the relation to identify the domain and range.y = -5x - 6
A. domain: (6, ?)
range: (-?, ?)
B. domain: (-?, ?)
range: 
C. domain: (-?, ?)
range: (-?, ?)
D. domain: [6, ?)
range: (-?, ?)
Answer: C
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If the recommended adult dosage for a drug is D (in mg), then to determine the appropriate dosage c for a child of age a, pharmacists use the equation c = 0.0417 D(a + 1). Suppose the dosage for an adult is 400 mg.
(a) Find the slope. What does it represent? (b) What is the dosage for a newborn?
Use the quadratic formula to solve the equation. (All solutions are real numbers.)x2 = 7 - 8x
A. {-1 + 
, -1 - 
}
B. {4 + 
}
C. {-4 + 
, -4 - 
}
D. {-4 + 2
, -4 - 2
}
Perform the indicated operations. Express the answer as a single polynomial in standard form.(5y + 11)(8y2 - 2y - 10)
A. 40y3 + 78y2 - 72y - 110 B. 40y3 + 98y2 + 72y + 110 C. 128y2 - 32y - 160 D. 40y3 - 10y2 - 50y + 11
Find the quotient 
of the complex numbers. Leave answer in polar form.z1 = 5(cos 200° + i sin 200°)z2 = 4(cos 50° + i sin 50°)
A. 
(cos 150° - i sin 150°)
B. 
(cos 250° + i sin 250°)
C. 
(cos 150° + i sin 150°)
D. 
(sin 150° + i cos 150°)