Write the algebraic expression without parentheses.-(47w)
A. -47w
B. 47w
C. 47 - w
D. -47 - w
Answer: A
Mathematics
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Solve the problem. Use 3.14 for ? and round to the nearest tenth.The striking circle in field hockey is a semicircle with a radius of 16.9 yards. Find the area of the semicircle.
A. 3587.3 yd2 B. 896.8 yd2 C. 106.1 yd2 D. 448.4 yd2
Mathematics
Perform the indicated operation. Write the result in the form a + bi.Simplify: i21
A. 1 B. i C. -1 D. -i
Mathematics
Add or subtract. Express the answer as a mixed number.13
+ 15
A. 29
B. 28
C. 27
D. 13
Mathematics
Solve the equation by using the quadratic formula. Give real solutions only. 3x² + x + 1 = 0
Mathematics