Multiply. Assume that all variables represent natural numbers.4kr + 1(9kr + 4 - 11kr + 3 - 5k)
A. 36k2r + 5 - 44k2r + 4 - 20kr + 2
B. 36kr + 5 - 44kr + 4 - 20kr + 1
C. 36kr + 5 - 44kr + 4 - 20kr + 2
D. 36k2r + 5 - 44k2r + 4 - 20kr + 1
Answer: A
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Solve the problem.Find the perimeter of the triangle with vertices A(-4, 1, 6), B(2, -2, 6), and 
.
A. 3
+ 
+ 3
B. 
+ 
+ 
C. 3
+ 
+ 
D. 
+ 
+ 3
Graph the function.f(x) = 
x3 - 2
A. 
B. 
C. 
D. 
Solve the problem.The table shows the population of a certain city in various different years. Use regression to find values for a and b so that f(x) = axb models this data, where x represents the number of years since 1980 and f(x) is the population of the city in hundreds of thousands. Round your answers to 4 decimal places.
A. a ? 2.6352, b ? 0.4756 B. a ? 2.1375, b ? 0.4432 C. a ? 1.8506, b ? 0.5121 D. a ? 1.7025, b ? 0.5375
Use the given graph to identify the vertex.
A. 
B. 
C. 
D. 
E. none of these