Mathematics: which of the following is equivalent to

which of the following is equivalent to

Ответ:

vanessacox45

11.03.2022

Mathematics

$x^{4}$

Step-by-step explanation:

$\frac{x^{5}y^{2} }{xy^{2} }$

= $x^{4}$

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Ответ:

stefani5519

11.03.2022

Mathematics

Question 1:

For this case we have the following expression:

$\frac {x ^ 5y ^ 2} {xy ^ 2}$

We eliminate similar terms in the numerator and denominator:

$\frac {x ^ 5} {x}$

By definition of division of powers of the same base we have to place the same base and subtract the exponents:

$\frac {x ^ 5} {x} = x ^ {5-1} = x ^ 4$

Option D

Question 2:

For this case we must indicate which expression is not equal to 125.

We tested option A:

$5 (\frac {5 ^ 3} {\frac {2} {5}}) ^ 2 =$

Simplifying we have:

$5 (\frac {5 ^ 3 * 5} {2}) ^ 2 =\\5 (\frac {5 ^ 8} {4}) =\\\frac {5 ^ 9} {4}$

The expression is not equal to 125.

option A

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Ответ:

Kigarya

05.05.2022

Mathematics

Point estimate (average) = $750
Standard deviation = $85
P(X>$825) = ?

Z = (X-mean)/Standard deviation = (825-750)/85 ≈ 0.88

From Z-table, P(X=825) = 0.8106

Therefore,
P(X>$825) = 1 - P(X=$825) = 1-0.8106 = 0.1894 = 18.94%

Percentage of teachers earning more than $825 is 18.94%.

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which of the following is equivalent to

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