Express the sum using summation notation.
+ 
+ 
+ ... + 
A. 
B. 
C. 
D. 
Answer: D
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Solve the formula for the specified variable.A = 
h(b1 + b2); for b1
A. b1 = 
B. b1 = 
C. b1 = 
D. b1 = 
Suppose a planet is discovered that revolves around its sun in an elliptical orbit with the sun at one focus. Its perihelion distance (minimum distance from the planet to the sun) is approximately  FIGURE 1.png)
km, and its aphelion distance (maximum distance from the planet to the sun) is approximately  Figure 2.png)
km. Approximate the eccentricity of the planet’s orbit. Round to three decimal places.
a. 1.174 b. 12.5 c. 0.08 d. 0.852
Solve the problem.Suppose that the manufacturing cost of a precision instrument is approximated by 
where x is the cost of materials and y is the cost of labor. Find 
A. 108 B. 354 C. 144 D. 1044
Solve the triangle. 
A. b = 5.86, A = 21.1°, C = 133.9° B. b = 5.86, A = 133.9°, C = 21.1° C. b = 4.86, A = 133.9°, C = 21.1° D. b = 6.86, A = 21.1°, C = 133.9°