Convert as indicated. When necessary, round to the nearest tenth of a degree.The temperature recorded on a thermometer was 7° C. Find the corresponding temperature in degrees Fahrenheit.
A. 35.9° F
B. -19.4° F
C. -28.1° F
D. 44.6° F
Answer: D
Mathematics
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For the given rectangular equation, write an equivalent polar equation.x2 + y2 = 49
A. r = 7 B. r = 7 cos ? C. r = 49 D. r = 7 sin ?
Mathematics
Solve the equation.
= 
A. 15
B. 
C. No solution
D. 
Mathematics
Find the standard form of the equation for the ellipse satisfying the given conditions. Foci at (0, ±6); vertex (0, -7)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Choose which of the following descriptions apply to the number (more than one may apply): whole, integer, rational, irrational, real.
A. Real, whole B. Real, rational, integer C. Real, irrational D. Real, rational
Mathematics