Solve for the variable.8.9x - 7 = 9.9x + 6
A. -14
B. -12
C. -13
D. -1
Answer: C
Mathematics
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Estimate the value of the quantity.Joe wants to find out how far it is across the lake. His boat has a speedometer but no odometer. The table shows the boats velocity at 10 second intervals. Estimate the distance across the lake using right-end point values.
A. 3850 ft B. 5800 ft C. 385 ft D. 3950 ft
Mathematics
Simplify. Assume that variables can represent any value.
A. 2x + 
B. 2x + 3
C. ?2x + 3?
D. None of these
Mathematics
Write the whole number in expanded form.2,040
A. 2000 + 40 B. 200 + 4 C. 204,000 D. 20,000 + 4000
Mathematics
Find the exact value of the expression.tan 
A. -2 - 
B. 
- 2
C. 2 - 
D. 2 + 
Mathematics