1 year ago

I need help with this question

Mathematics

1 answer:

Anna11 [10]1 year ago

3 0

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A jar contains 27 marbles. There are 4 blue marbles and the rest are red. If a marble is chosen at random, what is the likelihoo

ikadub [295]

Answer:

23/27

Step-by-step explanation:

27-4=23

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2 years ago

Find the perimeter of △CDE. Round your answer to the nearest hundredth. The perimeter is about units.

Troyanec [42]

Answer: $9.66\ units$

Step-by-step explanation:

The triangle CDE is shown in the image attached.

The formula for calculate the distance between two points is:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Then, we can calculate the lenght of each side of the triangle:

$d_{CD}=\sqrt{(4-4)^2+(-5-(-1))^2}=4\ units\\\\d_{DE}=\sqrt{(4-2)^2+(-5-(-3))^2}=2.828\ units\\\\d_{CE}=\sqrt{(2-4)^2+(-3-(-1))^2}=2.828\ units$

Therefore, the perimeter is:

$P=4\ units+ 2.828\ units+2.828\ units=9.66\ units$

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1 year ago

A rectangular table is positioned in a 10-foot by 10-foot room as shown.

makkiz [27]

Answer:

40 and 20

Step-by-step explanation:

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2 years ago

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Alexandra's bank statement shows a closing balance of $130.68. There are no outstanding checks or deposits. Her checkbook shows

Alex Ar [27]

She has a difference of $2.75, she may have subtracted something wrong while balancing out the check book.

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1 year ago

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The library is 1.75 miles directly north from the school. The park is 0.6 miles directly south of the school. How far away is th

Kryger [21]

Answer:

2.35 miles

Step-by-step explanation:

Please find the attachment for visual understanding.

We are told that the library is 1.75 miles directly north from the school and the park is 0.6 miles directly south of the school.

To find distance between library and park we will add distance of library from school to the distance of park from school.

$(1.75+0.6)\text{ miles}=2.35\text{ miles}$

Therefore, library is 2.35 miles away from park.

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2 years ago