A ladder is leaning against a vertical wall. The distance from the top ofthe ladder to the base of the wall is 15 feet. The leng
th of the ladder is 47 feet. What is the distance from the base of the wall to the bottom of the ladder? Provide an answer accurate to the nearest tenth.
1 answer:
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ANSWER
EXPLANATION
The given quadratic trinomial is
Comparing to the general quadratic trinomial:
We have a=1, b=10 and c=-8
The factors of -24 that adds up to 10 are -2 and 12.
We split the middle term to obtain;
Factor;
Factor further;
The last option is correct.