Divide.
A. x3 + 2x2 - 19x - 20
B. x3 - 19x2 + 2x - 20
C. x3 - 21x2 + 5x - 20
D. x3 + 5x2 - 21x - 20
Answer: A
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A certain type of lizard grows to a maximum length of 
centimeters. If L, in inches, is the length of the lizard after t years, then the difference 
is an exponential function of time.
? A: A newborn lizard is 4 centimeters long. What is the initial value of D? ? B: A 2-year-old lizard is 7 centimeters long. Find the yearly decay factor for D, and use your answer to find an exponential formula for D. Use t for the age, in years, of the lizard. ? C: Find a formula for L. ? ? What will be an ideal response?
Identify the place value of the digit 5 in the decimal number. 6.98507
A. thousands B. thousandths C. hundredths D. tenths
Factor completely. State that the polynomial is prime if it cannot be factored.x2 - x - 40
A. (x - 40)(x + 1) B. (x - 5)(x + 8) C. prime D. (x + 5)(x - 8)
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.2x - 3y + 5z = 7-7x - 2y + 3z = 46x + 3y - 2z = -10
A. 
B. 
C. 
D. No solution