Determine an estimate of the exact answer. Use estimation by rounding.Linda scored 92, 75, 60, 68, 94, and 100 on her calculus tests. Round each score to the nearest ten to estimate her total score.
A. 480
B. 500
C. 470
D. 490
Answer: D
Mathematics
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A. 15
B. 6
C. 36
D. 6
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Solve for the specified variable.5x + 
= 
for z
A. z = 
B. z = 
C. z = 
D. z = 
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Solve the quadratic equation by factoring.8d2 + 18d + 9 = 0
A. - 
, - 
B. 
, 
C. - 
, - 
D. 
, 
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Perform the arithmetic.(-19) + (-1) + 12
A. -6 B. -8 C. 8 D. -30
Mathematics