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3 years ago

1. Use a protractor to try to draw each triangle. Which of these three triangles is impossible to

Mathematics

1 answer:

Rus_ich [418]3 years ago

4 0

answer:

C a triangle with one measures 90° and another angle measures 100°

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If ABC is reflected across the y-axis, what are the coordinates of A?

quester [9]

Answer:

The answer is option A

Step-by-step explanation:

Reflection in the y axis is

(x , y) → ( - x , y)

The coordinates of A are ( 2, -5)

When it's reflected in the y axis it becomes

( - 2 , - 5)

Hope this helps you

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3 years ago

A ________ exists between two variables when the values of one variable are somehow associated with the values of the other vari

motikmotik

Correlation would be the correct answer

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3 years ago

CAN SOMEONE HELP ME PLS!!!!!

ad-work [718]

Answer:

Step-by-step explanation:

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3 years ago

What is the property of 7/9 * 1 = 7/9

lidiya [134]

Answer:

Identity property of multiplication (multiplying a number by one will result in that number)

Step-by-step explanation:

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3 years ago

Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2 1 inches. She p

Sauron [17]

The expression used for the length of ribbon that she needs for both pillows will be $4(2x^{2} +4x-6)$ .

The total length of the pillow she needs will be 130 inches.

Given,

The side length of pillow is $(2x^2 + 1) \ inches$ .

The side length of another pillow is $4x-7 \ inches$ .

We know that perimeter of square will be,

$P=4\times length$

So the perimeter of pillow will be,

$P=4\times (2x^2+1)\\$

$P=8x^{2} +4$

Similarly, the perimeter of another pillow will be,

$P=4\times (4x-7)$ ]

$P=16x-28$

Hence,the total length of ribbon that she needs for both the pillows will be,

$8x^{2} +4+16x-28\\8x^{2} +16x-24\\4(2x^{2} +4x-6)$

If $x=3.5\\$ then the total length of ribbon will be,

$4(2\times 3.5^{2}+4\times 3.5-6)\\4(2\times 12.25+14-6)\\$

$4(24.5+8)$

$4\times 32.5\\$

$130 \ inches$ .

Thus the required expression will be $4(2x^{2} +4x-6)$ and the total length of ribbon she needs will be 130 inches.

So, the correct option will be (D).

For more details on perimeter of square follow the link:

brainly.com/question/5402168

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3 years ago