Solve the problem.A satellite is to be put into an elliptical orbit around a moon. The moon is a sphere with radius of 523 km. Determine an equation for the ellipse if the distance of the satellite from the surface of the moon varies from 762 km to 889 km.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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Solve the problem.Tim needs to apply 1
gallons of herbicide per acre of soybeans. How many gallons of herbicide are needed for 308 acres?
A. 462 gallons
B. 77
gallons
C. 79 gallons
D. 205
gallons
Mathematics
Find the regression line for the given data. Round to two decimal places, if necessary.
A. y = 0.95x + 3.07 B. y = 0.85x + 3.07 C. y = 0.75x + 4.07 D. y = 0.75x + 5.07
Mathematics
Perform the indicated operation.4 + (-2)
A. 2 B. -2 C. -6 D. 6
Mathematics
Simplify. Assume that all variables represent positive real numbers.
A. 49
B. 12
C. 7
D. 7
Mathematics