Solve using the substitution method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this.x + y = -3x + y = -7
A. (0, 0)
B. No solution
C. (-3, -7)
D. (0, -10)
Answer: B
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Evaluate.(-7)2
A. 14 B. -49 C. 49 D. -14
Solve.A ball is dropped from a height of 25 feet. Each time it strikes the ground, it bounces up to 0.7 of the previous height. The total distance the ball has traveled before the second bounce is 
feet, and the total distance the ball has traveled before bounce n + 1 is 25 + 
feet.Use facts about infinite geometric series to calculate the total distance the ball has traveled by the time it has stopped bouncing.
A. 141
feet
B. 140
feet
C. 144
feet
D. 141
feet
Use a graphing utility to find the solution of the equation. Round to the nearest thousandth.2.8ln x = 100.3
A. {1.338} B. {1.956} C. {4.687} D. {2.543}
Establish the identity.
- 
= 
What will be an ideal response?