MATHEMATICS MIDDLE SCHOOL

A 2-inch-wide frame is to be built around theregular decagonal window shown. At what angles a and bshould the corners of each piece be cut?

Answers

Answer 1

Answer:

The angles should at 144°

What is a decagon?

A decagon is a 2D shape, or polygon that has 10 straight sides, 10 vertices (points), and 10 interior angles.

Given that, A 2-inch-wide frame is to be built around the regular decagonal window

External angles add up to 360

so each external angle = 360/10 = 36 degrees

internal angle = 180 - 36 = 144 degrees

Hence, angles at the corners are 144 degrees

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Answer 2

Answer: divide the 360 degrees of a circle by the number of equal angles (10) =36 degrees

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Hitomi has a bag with four chips in it numbered 1 to 4. She randomly draws a chip and replaces it three times. What is the probability that Hitomi will draw a 1 all three times?

Answers

1 out of 4 all three times because there are only 4 chips in the bag. out of the 4 she will get 1 every time. so it is going to be 1 out of every 4 times

Is this carrect ? please let me know

Answers

Everything on the sheet looks correct to me. Nice work !

Yep!!!! Division does come before subtraction, you know about PEMDAS right?

What is the function rule for the following situation? Rex paid $20 for a membership to the pool and pays $300 each time he goes to the poolhttps://brainly.com/question/12669821

Answers

f(x)=20+300x

Also, Rex should find a different pool because that fee is ridiculous.

Final answer:

The function rule in the given situation is a linear function and can be represented as C=20+300x. In this rule, 'C' is the total cost in dollars, '20' is the initial membership fee, '300' is the cost of each pool visit and 'x' is the number of pool visits.

Explanation:

The function rule in this situation is called a linear function. A function rule describes how to convert an input (in this case, the number of times Rex visits the pool) into an output (the total cost).

The function rule for this specific situation could be represented as C=20+300x, where 'C' is the total cost, '20' is the initial membership fee, '300' is the cost each time Rex goes to the couple, and 'x' is the number of times Rex goes to the pool.

So, each time Rex goes to the pool, you would multiply that number by 300 (the cost per visit), and then add 20 (the initial fee) to get the total cost.

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An original piece of artwork is 2.75 feet by 2.25 feet a reprint of the artwork is 22 inches by 18 inches are the pieces similar? if so what is the ratio of their corresponding side lengths?

Answers

Yes, the Repainted Artwork is similar to the Original. The 22*18 inch repaint can be recaclculated into a 1.83*1.5 feet repaint. Both can be multiplied by about 1.5 to equal 2.75*2.25. Therefore, the ratio is 1.5.

Julie figures that she will need at least 540 Marks (German money) to get the items she wants when visiting Germany. Give an estimating example of how Julie could guarantee herself of having at least 540 Marks. Show and explain your example below.