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Alborosie
3 years ago
10

What single transformation maps ∆ABC onto ∆A'B'C'?

Mathematics
2 answers:
masya89 [10]3 years ago
6 0
The answer is B) rotation 90 degrees counterclockwise about the origin
Wittaler [7]3 years ago
4 0

<u>Answer-</u>

<em>The triangle is rotated </em><em>90° counterclockwise</em><em> about the origin.</em>

<u>Solution-</u>

Coordinates of the vertices of the triangle ABC are,

A = (-3, 1)

B = (-1, 2)

C = (-2, 1)

Coordinates of the vertices of the triangle A'B'C' are,

A' = (-1, -3)

B' = (-2, -1)

C' = (-1, -2)

While rotating a point (x, y) 90° counterclockwise, it becomes (-y, x)

i.e (x, y) → (-y, x)

So, the triangle is rotated 90° counterclockwise about the origin.

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The concentration of ions in the solution of lemon juice whose pH value is 2.32 is 4.79×10⁻³ M.

<h3>What is pH value?</h3>

The pH value shows that how much a solution is acidic or basic. The range of the pH value lies between the 0-14.

The pH value can be calculated with the following formula.

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Learn more about the pH value here;

brainly.com/question/940314

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Amanda is cooking a cake.the recipe calls for 6 cups sugar.she accidentally put in cups.how many extra cups did she put in?
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