Write the complex number in standard form.
?
?
A. 3 + 
i?
B. 4 + 
i
C. 7 - 
i
D. 3 - 
i
E. 4 - 
i
Answer: D
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Solve the problem.A company earned a profit of $5,000,000 in its first year, but its profits decreased by 9% in each of the next 6 years. What is the sum of its yearly profits for its first 7 years? Round your answer to the nearest cent.
A. $46,002,173.38 B. $29,430,415.13 C. $24,007,263.78 D. $26,846,610.04
Apply the distributive property.-(-7x + 3)
A. 7x + 3 B. 7x - 3 C. -7x + 3 D. -7x - 3
Solve the equation and check your solution.-2.5y = 22.5
A. -13.5 B. -72 C. -0.28 D. -9
Use regression to solve the problem. Round numbers to the nearest hundredth.The first column shows the independent variable (x). The second column shows the dependent variable (y).
Use linear regression to predict the value of y when x = 21.
A. 66.94 B. 62.74 C. 73.24 D. 69.04