You can survey 125 respondents.
You have a budget of $250. If each respondent costs $2, just divide 250 by 2 and you will have your answer.
250 / 2 = 125
1.6 min. per lap
All you have to do is divide 20 by 12.5
Area of the trapezium = 1/2(18 + 6) x 12
Area of the trapezium = 144 in²
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Answer: Area = 144 in²
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Answer:
complementary angles are angles that sum up to 90 degrees. that is all I can say because I can't see any diagram
Answer:
as written: 7x^2
perhaps intended: 7x^4
Step-by-step explanation:
As written, the Order of Operations specifies that the only denominator factor is 3, so the expression is interpreted as ...

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Sometimes grouping of denominator factors is intended, but parentheses are not written as they should be. If the intention is ...
21x^3/(3x^-1)
then the simplification is ...

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The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
a^b/a^c = a^(b-c)