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3 years ago

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Mathematics

1 answer:

Butoxors [25]3 years ago

3 0

Answer:

Step-by-step explanation:

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Helpp again cause no one answered me </3 so please help!!!

Serjik [45]

Answer:

its the first one.

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3 years ago

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Identify a sequence of transformations that maps triangle ABC onto triangle A"B"C" in the image below.

Murljashka [212]

Answer:

The correct option is B.

Step-by-step explanation:

It is given that triangle A"B"C" is the image of triangle ABC after transformation.

From the given figure it is noticed that the point C lies on positive y-axis and point C" lies on negative x-axis.

It means the figure is rotated either counterclockwise 90° or clockwise 270°. The rotation rule is

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

The corresponding sides of image A"B"C" are smaller than the preimage ABC.

$k=\frac{A"B"}{AB}=\frac{3}{6}=\frac{1}{2}$

Since k<0, therefore the transformation shows the reduction. The dilation rule is

$(x,y)\rightarrow (-\frac{1}{2}y,\frac{1}{2}x)$

$A(-3,0)\rightarrow (-\frac{1}{2}(0),\frac{1}{2}(-3))\rightarrow (0,-1.5)$

$B(3,0)\rightarrow (-\frac{1}{2}(0),\frac{1}{2}(3))\rightarrow (0,1.5)$

$C(0,5.2)\rightarrow (-\frac{1}{2}(5.2),\frac{1}{2}(0))\rightarrow (-2.6,0)$

Option B is correct.

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3 years ago

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When adding √9 and -7, which type of number is the sum?

dezoksy [38]

We are given numbers √9 and -7.

Square root 9 is a perfect square.

Square root 9 = 3.

So, if we add square root 9 and -7, we would get

√9 + -7 = 3 -7 = -4.

So, we got a negative whole number.

<em>A negative or positive whole number is called an integer</em>.

So, it's an integer.

<h3>Therefore, correct option is D. Integer.</h3>

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3 years ago

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How much would each hauling company charge to haul 40 cubic yards of dirt?

prohojiy [21]

Answer:

You didn't put which hauling companies, but I think I have the same question has you.

EZ would charge <u>980</u>

Happy hauling would charge <u>1000</u>

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3 years ago

What was the value of 342000 - 9%=

lutik1710 [3]

Answer:

12641680.

Step-by-step explanation:

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4 years ago