Convert as indicated. Round to the nearest tenth of a degree, if necessary.Phosphorous is a non-metallic element which ignites spontaneously when exposed to air. Phosphorous has a melting point of 44.1°C. Find this temperature in degrees Fahrenheit.
A. 6.7°F
B. 137.0°F
C. 56.5°F
D. 111.4°F
Answer: D
Mathematics
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A. (x - 63)(x + 1) B. (x - 7)(x + 9) C. Prime D. (x + 7)(x - 9)
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Determine whether the infinite geometric series has a limit. If a limit exists, find it.20 - 1 + 0.05 - . . .
A. No limit
B. 
C. 
D. 
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Solve by using the quadratic formula.6x2 + 8x = - 1
A. 
B. 
C. 
D. 
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Determine whether the matrix is regular.
a. Not regular
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Mathematics