Solve the equation.-10y + 7 = -5 - 10y
A. 5
B. all real numbers
C. no solution
D. 0
Answer: C
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Solve the problem.Find an upper bound for 
in estimating 
with n = 6 steps.
A. 
B. 
C. 
D. 
Find the following using a calculator. Round to four decimal places.log 0.0803
A. -1.5953 B. -1.0953 C. -2.022 D. -2.522
Factor the trinomial completely.-6x2 + 26x + 20
A. -2(3x - 2)(x + 5) B. -2(3x + 2)(x - 5) C. (-6x + 4)(x - 5) D. Prime
Solve the problem.Halley's comet has an elliptical orbit with the sun at one focus. Its orbit shown below is given approximately by 
In the formula, r is measured in astronomical units. (One astronomical unit is the average distance from Earth to the sun, approximately 93 million miles.) 
Find the distance from Halley's comet to the sun at its greatest distance from the sun. Round to the nearest hundredth of an astronomical unit and the nearest million miles.
A. 1298.75 astronomical units; 120,784 million miles B. 10.47 astronomical units; 974 million miles C. 5.24 astronomical units; 487 million miles D. 5.22 astronomical units; 485 million miles