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AleksandrR [38]
2 years ago
5

25x power square - 36 y power square​

Mathematics
1 answer:
finlep [7]2 years ago
3 0

\implies {\blue {\boxed {\boxed {\purple {\sf {  (5x + 6y)(5x - 6y) }}}}}}

\large\mathfrak{{\pmb{\underline{\orange{Step-by-step\:explanation}}{\orange{:}}}}}

={25x}^{2}  - 36 {y}^{2}

=  ({5 \times 5)x}^{2}  -  (6 \times 6){y}^{2}

=  ({5x})^{2}  -(  {6y})^{2}

= (5x + 6y)(5x - 6y)

<h3><u>Note</u>:</h3>

{a}^{2}  -  {b}^{2}  = (a + b)(a - b)

\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35♛}}}}}

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Answer:

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We want to test to determine whether or not the mean waiting time of all customers is significantly different than 3 minutes.

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0.0456 < 0.05, which means that the null hypothesis is rejected.

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