The following data show the mass M, in solar masses, and the relative luminosity L (the ratio of a star's luminosity to that of the sun) of various stars.
Star Spica Vega Altair Sun 61 Cygni A M 7.3 3.1 1 1 0.17 L 1050 55 1.1 1 0.002?
A: Use power regression to model the luminosity as a function of the mass. Use two digits of accuracy for the coefficient and for the power.B: What is the mass of a star with a relative luminosity of 6.43? Round your answer to two decimal places.C: If one star has a mass of 17 times that of another, how do their luminosities compare? Round your answer to two decimal places.
What will be an ideal response?
?A: 
?
B: 1.69 solar masses
?
C: The relative luminosity of the larger star is 20,256.82 times that of the other star.
Mathematics
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Solve the problem.The cash price of a electric typewriter is $540. The customer agreed to pay 25% of the price as a down payment. The remainder, plus a finance charge, will be paid in 12 monthly installments of $49.12 each. Find the amount of the finance charge.
A. $49.69 B. $184.44 C. $589.44 D. $538.65
Mathematics
Calculate. Round to two decimal places if necessary.
A. -3 B. 3 C. 0.06 D. 0.6
Mathematics
Determine whether the lines through each pair of points are parallel, perpendicular, or neither.(6, 3) and (10, -1); (0, 2) and (2, 4)
A. parallel B. perpendicular C. neither
Mathematics
Multiply. Simplify if possible.
? 
A. 
B. 
C. 
D. 
Mathematics