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4 years ago

Triangle ABC is congruent to triangle DEF. what reason can be used to show that line AB is congruent to line DE.

1 answer:

4 0

If triangle ABC is congruent to triangle DEF, then line AB is congruent to line DE by CPCTC (Corresponding Parts of Congruent Triangles are Congruent).

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4 years ago

If x varies inversely as the square of y and if x=3 when y=-1, what is the value of x when y =3

lyudmila [28]

Answer:

$x$ would be $(1/3)$ when $y = 3$ .

Step-by-step explanation:

The question states that $x$ varies "inversely" as $y^2$ . In other words, there is a non-zero number $a$ (a constant) such that:

$\displaystyle x = \frac{a}{y^2}$ .

The challenging part is to find the value of $a$ in this equation.

Given that $x = 3$ when $y = -1$ , replace the $x$ in this equation with $3$ and $y$ with $(-1)$ . This equation should still be valid:

$\displaystyle 3 = \frac{a}{(-1)^{2}}$ .

Solve for $a$ :

$a = 3 \times (-1)^2 = 3$ .

Hence, the relation between $x$ and $y$ becomes:

$\displaystyle x = \frac{3}{y^2}$ .

Find the value of $x$ when $y = 3$ by replacing the $y$ in this equation with $3$ .

$\displaystyle x = \frac{3}{3^2} = \frac{1}{3}$ .

In other words, the value of $x$ would be $\displaystyle \frac{1}{3}$ when $y = 3$ .

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3 years ago

How to find the domain and range

STALIN [3.7K]

The domain is all the X values and the range is all of the Y values.

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3 years ago

Read 2 more answers

Help me you guys I will apprecaite

stepladder [879]

I think your answer would be 14 if this is what it’s asking for
Because 6/6 makes 1 so 13+1 is 14

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3 years ago