Solve by the substitution method.0.2x + 0.9y = -3.2 x - 0.5y = 4
A. ?
B. {(0.2, -0.4)}
C. {(-4, 2)}
D. {(2, -4)}
Answer: D
Mathematics
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Write the decimal in numbers.Six and five hundred sixteen ten-thousandths
A. 0.60516 B. 6.00516 C. 6.0516 D. 6.516
Mathematics
Simplify the expression.5-2
A. 25
B. -25
C. 
D. 
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Find the quotient and write in rectangular form. First convert the numerator and denominator to trigonometric form.
A. - 
- 
i
B. 
- 
i
C. 
+ 
i
D. - 
+ 
i
Mathematics
Solve the problem.The number of books in a small library increases according to the function B = 2500e0.04t, where t is measured in years. How many books will the library have after 4 years?
A. 1990 books B. 2934 books C. 3614 books D. 4581 books
Mathematics