4 years ago

TREC is a rectangle. What is the length of ET?

1 answer:

8 0

The distance between ET

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Tamiku [17]

$24 times 10 is $240 and $6 times 100 is $600 so 240+$600 is $840 then $840 devided by 4 is $210.

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4 years ago

NNADVOKAT [17]

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3 years ago

Whitepunk [10]

Given:

Point is T(-3,8).

To find:

The coordinates of T' after $R(y-axis)\circ R(x-axis)$ .

Solution:

We know that, $R(y-axis)\circ R(x-axis)$ means the figure reflected across the x-axis then reflected across y-axis.

If a figure reflected across x-axis, then

$(x,y)\to (x,-y)$

$T(-3,8)\to T_1(-3,-8)$

If a figure reflected across y-axis, then

$(x,y)\to (-x,y)$

$T_1(-3,-8)\to T'(-(-3),-8)$

$T_1(-3,-8)\to T'(3,-8)$

Therefore, the required point is T'(3,-8).

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3 years ago

Dima020 [189]

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3 years ago

Debora [2.8K]

Answer:

$-m+4-(-m) = -m+4+m \\ = 4$

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3 years ago