All categories

3 years ago

Please help and explain

Mathematics

1 answer:

8_murik_8 [283]3 years ago

6 0

Answer:

= $\frac{x^{12} }{3y^{4} }$

Step-by-step explanation:

= $\frac{x^{12} }{3y^{4} }$

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The ratio 50:60 in simplest form

Taya2010 [7]

Answer:

Divide both 50 and 60 by 10

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4 years ago

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Solve help I’m in the middle of a test

Taya2010 [7]

Answer:

the anser is -16

Step-by-step explanation:

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3 years ago

Can someone help me on problem number 8?

kramer

List the coordinates,
Coordinates are shown as (x,y)
If 2+2+7+7 is 16
You make those your side lengths
Coordinates are (9,7) (2,7) (2,5) (9,5)
they maybe slightly off because of the broken peice of paper

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4 years ago

My last question for the pre test

Sindrei [870]

Answer:

Step-by-step explanation:

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3 years ago

Start with Chanel’s sequence. How does a 90-degree counterclockwise rotation about the origin change the coordinates of a shape?

zmey [24]

When a shape is rotated, it must be rotated through a point.

90 degrees counterclockwise rotation negates the y-coordinates, and then swap the x and y-coordinates
Chanel is incorrect

The rule of 90 degrees counterclockwise is:

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

This means that:

The y-coordinate is negated
Then the y and x coordinates are swapped

However, Charlies transformation is incorrect.

This is so because, the shape was not rotated, but instead it was reflected across the x-axis.
Then, the shape was dilated

Using points L and Q

$L=(1,1)$

When L is reflected across the x-axis.

The rule is:

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

So, we have:

$(1, 1) \to (1, -1)$

Next, it is dilated by 2.

The rule of this is:

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

So, we have:

$(1,1) \to2 \times (1,-1)$

$(1,1) \to (2,-2)$

From the diagram, the coordinate of Q is:

$Q = (2,-2)$

Same as the calculated point

Hence, Chanel is incorrect