Solve the problem.Tracey bought a diamond ring appraised at $2000 at an antique store. If diamonds have appreciated in value at an annual rate of 
what was the value of the ring 9 years ago? (Round your answer to the nearest dollar.)
A. $813
B. $331
C. $848
D. $4716
Answer: C
Mathematics
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Divide. Write the answer in lowest terms and as a whole or mixed number where possible.28 ÷ 
A. 21
B. 37
C. 
D. 7
Mathematics
Use a calculator to give the value to the nearest degree.? = cos-1(-0.3907)
A. 110° B. -67° C. 113° D. 115°
Mathematics
Solve the triangle.a = 9, b = 15, c = 4
A. A ? 31.2°, B ? 43.3°, C ? 105.5° B. A ? 62.4°, B ? 86.4°, C ? 15° C. A ? 31.2°, B ? 62.4°, C ? 86.4° D. No triangles possible
Mathematics
Find the perimeter.A triangle has sides measuring 3
, 3
, and 2
meters.
A. 21
meters
B. 15 + 6
meters
C. 15
+ 6 meters
D. 15
+ 6
meters
Mathematics