HELP

Mathematics

1 answer:

UNO [17]3 years ago

5 0

Sophia’s work factoring a perfect square trinomial is $(4x+5)^{2}.$

Step-by-step explanation:

We have,

16 $x^2$ – 40x + 25

= $(4x)^2$ - 2(4x)(5) + $5^{2}$

Using the algebraic identity,

$(a+b)^{2}=a^{2}+2ab+b^{2}$

= $(4x)^2$ - 2(4x)(5) + $5^{2}$

$= (4x+5)^{2}$ ≠ ( $(x + 5)^2$

Thus, Sophia’s work factoring a perfect square trinomial is $(4x+5)^{2}.$

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Step-by-step explanation:

What is wrong with the researcher's interpretation is that the researcher did not state that the p-value is conditional on the null hypothesis being true.

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