Solve the problem.The stock market closed at 2538 on Monday, gained 41 points on Tuesday, and lost 43 points on Wednesday. Where did the market close on Wednesday?
A. 2536 points
B. 2622 points
C. 2540 points
D. 2454 points
Answer: A
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Identify the type of surface represented by the given equation.
- 
- 
= 1
A. Hyperboloid of two sheets B. Elliptical cone C. Ellipsoid D. Hyperboloid of one sheet
Write the Hindu-Arabic numeral in expanded form.1613
A. (1 × 101) + (6 × 102) + (1 × 103) + (3 × 104) B. (1 × 100) + (6 × 101) + (1 × 102) + (3 × 103) C. (1 × 103) + (6 × 102) + (1 × 101) + (3 × 100) D. (1 × 104) + (6 × 103) + (1 × 102) + (3 × 101)
Solve the problem.Ozone levels inside a building should not exceed 50 parts per billion (ppb). In a scientific study, an air filter was able to remove 44% of the ozone entering a building. Approximate the range of ozone concentrations in outside air that this filter will reduce to an acceptable level.
A. 71 ppb ? x ? 89 ppb B. x ? 89 ppb C. x ? 89 ppb D. x ? 107 ppb
Find the requested characteristic.Find the phase shift of y = - 
tan 
(x + 
).
A. 
to the right
B. 
? to the right
C. 
to the left
D. 
? to the left