Use the vertical-line test to determine whether the graph represents a function.
A. Yes
B. No
Answer: A
Mathematics
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Use the change-of-base formula to find the logarithm. Round your answer to four decimal places. log2 7
A. 2.8074 B. 0.3562 C. 5.6148 D. -2.8074
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.0.64
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of the trigonometric function. Do not use a calculator or tables.tan 
A. 1
B. - 
C. - 
D. 
Mathematics
Express the complex number in trigonometric form.- 5 + 5i Express your answer in radians.
A. 5
B. 5
C. 5
D. 5
Mathematics