What is the function called?
a. Constant function
b. Identity function
c. Cubic function
d. Absolute value function
b. Identity function
Mathematics
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Perform the indicated operation. Write the result in the form a + bi.(5 - 7i)(4 + 8i)
A. 76 - 12i B. 76+ 12i C. 68 - 36i D. -36 - 68i
Mathematics
Express the number in standard notation.3.98 × 105
A. 3,980,000 B. 199 C. 398,000 D. 39,800
Mathematics
Decide whether or not matrix A and matrix B are inverses.A = 
and B = 
A. Yes B. No
Mathematics
Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.Degree 4; zeros: i, 3 + i
A. -3 + i, 3 - i B. -i, 3 - i C. -i, -3 + i D. 3 - i
Mathematics