Answer the question.Without multiplying by the least common denominator and solving, explain why the rational equation 
has no solution. (Hint: Examine both numerators and denominators carefully.)
What will be an ideal response?
Since the denominators are the same, the numerators must be the same. Then x = 3; but this value of x makes the denominators 0, so the equation has no solution.
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Use the substitution method to solve the system.x + y = -6x - y = 15
A. (4.5, 10.5) B. (4.5, -10.5) C. (6, -10.5) D. (6, 4.5)
Write the number in scientific notation.308.57
A. 3.0857 × 10-1 B. 3.0857 × 102 C. 3.0857 × 101 D. 3.0857 × 10-2
Solve. Remember to insert units when writing your answer.A carton of golf balls weighs 38 lb 3 oz. Of this, 1 lb 13 oz is due to packaging. Find the weight of the golf balls in 
A. 344 lb 3 oz B. 343 lb 11 oz C. 325 lb 6 oz D. 327 lb 6 oz
Decide whether the graph opens up or opens down.f(x) = -x2 - 6x + 3
A. opens up B. opens down