Express the number in scientific notation.220,000,000,000
A. 2.2 × 1012
B. 22 × 1010
C. 2.2 × 1011
D. 22 × 1011
Answer: C
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Use the guidelines to evaluate the study. Discuss flaws that you see in the study. An educational researcher wishes to compare the effectiveness of two different math textbooks. She has the tenth graders at one school use the first book for one year and the tenth graders at another school use the second textbook for one year. At the end of the year, she gives the same math test to both classes and compares the results.
What will be an ideal response?
Solve the proportion equation.
= 
A. 1,452
B. 1
C. 
D. 45
Find all vertical asymptotes of the given function.R(x) = 
A. x = - 77 B. x = 11, x = -7 C. x = -11, x = 7, x = -3 D. x = -11, x = 7
Find the slope-intercept form of the equation of a line parallel or perpendicular to the given line and passing through the given point.Parallel to y = - 
x - 10, through (-5, -4)
A. y = - 
x - 
B. y = 2x - 6
C. y = - 
x + 
D. y = 2x + 6