Express the number in standard notation.1.455 × 10-5
A. 0.00001455
B. 0.000001455
C. 0.0001455
D. -145,500
Answer: A
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Add or subtract. Simplify your answer to lowest terms.
+ 
A. 
B. 
C. 
D. 
Write the ratio as a fraction in lowest terms. Be sure to make all necessary conversions.20 cents to $7
A. 
B. 
C. 
D. 
Write the number in scientific notation.Light with a wavelength of 0.00000055 meters is green in color
A. 5.5 × 10-8 B. 5.5 × 10-6 C. 5.5 × 10-7 D. 5.5 × 107
Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.f(x) = x3 + 7x2 - x - 7
A. -1, multiplicity 1, touches the x-axis and turns around; 1, multiplicity 1, touches the x-axis and turns around; - 7, multiplicity 1, touches the x-axis and turns around B. 7, multiplicity 1, crosses the x-axis; 1, multiplicity 1, crosses the x-axis; - 7, multiplicity 1, crosses the x-axis. C. -1, multiplicity 1, crosses the x-axis; 1, multiplicity 1, crosses the x-axis; - 7, multiplicity 1, crosses the x-axis. D. 1, multiplicity 2, touches the x-axis and turns around; - 7, multiplicity 1, crosses the x-axis.