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3 years ago

Help with 21 and not 22 please

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

7 0

So the 170 is the area
and the formula for that is A=lw
so you have a length of 15.5.
Put those in and you get 170.5=15.5w.
you divide 170.5 by 15.5 and get 11.
the Width is 11.

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wolverine [178]

Option C: $\frac{x^{2}-9}{x^{2}-4}$ is the product of the rational expression.

Explanation:

The given rational expression is $\frac{x+3}{x+2} \cdot \frac{x-3}{x-2}$

We need to determine the product of the rational expression.

Product of the rational expression:

Let us multiply the rational expression to determine the product of the rational expression.

Thus, we have;

$\frac{(x+3)(x-3)}{(x+2)(x-2)}$

Let us use the identity $(a+b)(a-b)=a^2-b^2$ in the above expression.

Thus, we get;

$\frac{x^{2} -3^2}{x^{2} -2^2}$

Simplifying the terms, we get;

$\frac{x^{2}-9}{x^{2}-4}$

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Hence, Option C is the correct answer.

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2 years ago

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konstantin123 [22]

Answer:

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Step-by-step explanation:

General formula:

${ \boxed{ \bf{distance = \sqrt{ {(x_{1} - x _{2} )}^{2} + {(y _{1} - y _{2} ) }^{2} } }}}$

substitute:

${ \sf{ = \sqrt{ {(5 - ( - 3))}^{2} + {(8 - 4)}^{2} } }} \\ = { \sf{ \sqrt{64 + 16} }} \\ = { \sf{ \sqrt{80} }} \\ = 8.94 \: units$

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2 years ago

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Savatey [412]

Answer:

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Step-by-step explanation:

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2 years ago

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kenny6666 [7]

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3 years ago

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Gala2k [10]

Answer:

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Step-by-step explanation:

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