Express the expanded form as a Hindu-Arabic numeral.(1 × 105) + (9 × 104) + (5 × 103) + (4 × 102) + (8 × 101) + (5 × 1)
A. 7200
B. 320
C. 195,485
D. 32
Answer: C
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Write the English sentence as an equation in two variables. Then graph the equation.The y-value is one increased by the square of the x-value.
A. y = 1 - x2
B. y = 1 + x2
C. y = -1 + x2
D. y = 1 + 2x
Find the radius or diameter as requested.Find the diameter.
A. 1
m
B. 1
m
C. 8
m
D. 5
m
Solve the problem.Write 45 out of 50 plant species as a decimal and as a percent.
A. 0.9, 900% B. 0.9, 90% C. 0.9, 9% D. 9, 900%
Solve the problem.The logistic growth function f(t) = 
models the number of people who have become ill with a particular infection t weeks after its initial outbreak in a particular community. What is the limiting size of the population that becomes ill?
A. 130,000 people B. 3250 people C. 3249 people D. 65,000 people