Shadow Length A man 6 feet tall walks at a rate of 5 feetper second toward a streetlight that is 30 feet high (see figure).The man’s 3-foot-tall child follows at the same speed, but10 feet behind the man. At times, the shadow behind the childis caused by the man, and at other times, by the child.(a) Suppose the man is 90 feet from the streetlight. Show thatthe man’s shadow extends beyond the child’s shadow.
Shadow Length A man 6 feet tall walks at a rate of 5 feetper second toward a streetlight that is 30 feet high (see figure).The man’s 3-foot-tall child follows at the same speed, but10 feet behind the man. At times, the shadow behind the childis caused by the man, and at other times, by the child.(a) Suppose the man is 90 feet from the streetlight. Show thatthe man’s shadow extends beyond the child’s shadow.
Chapter1: Equations, Inequalities, And Mathematical Modeling
Section1.2: Linear Equations In One Variable
Problem 72E: Flood Control A river is 8 feet above its flood stage. The water is receding at a rate of 3 inches...
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Shadow Length A man 6 feet tall walks at a rate of 5 feet
per second toward a streetlight that is 30 feet high (see figure).
The man’s 3-foot-tall child follows at the same speed, but
10 feet behind the man. At times, the shadow behind the child
is caused by the man, and at other times, by the child.
(a) Suppose the man is 90 feet from the streetlight. Show that
the man’s shadow extends beyond the child’s shadow.
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