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vesna_86 [32]
3 years ago
15

Find the cardinal number of the set:

Mathematics
1 answer:
yarga [219]3 years ago
8 0

Answer: 6

Step-by-step explanation:

Ok lemme actually format this set

$C = \left\{\frac 1x : x \in \mathbb{Z}\ \text{and}\ 4 \leq x \leq 9\right\}$

Well the only integers from 4 to 9 are 4, 5, 6, 7, 8, 9. So this set is just

$C = \left\{\frac 14, \frac 15, \frac 16, \frac 17, \frac 18, \frac 19\right\}$

which has cardinality \boxed{6} .

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Answer:

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Step-by-step explanation:

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4 0
2 years ago
An observer (O) is located 500 feet from a school (S). The observer notices a bird (B) flying at a 39° angle of elevation from h
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Answer:

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Step-by-step explanation:

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We can set up our equation as follows:

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Answer:

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