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Ronch [10]
3 years ago
11

Kris’s mom is putting up a border on the walls of Kris’s room. Her room is 12 feet long and 10 feet wide. How much border will b

e needed to go all the way around the room?
Mathematics
1 answer:
Oksanka [162]3 years ago
6 0

Answer:

120 sq

Step-by-step explanation:

For example, if you are buying carpet for a room that is 12-feet long and 10-feet wide, multiply the two dimensions: 12 ft. x 10 ft. = 120 sq.

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The triangle below is equilateral. Find the length of side xx in simplest radical form with a rational denominator.
mylen [45]

The length of side x in simplest radical form with a rational denominator is 8√3

<h3>How to find the length of side x in simplest radical form with a rational denominator?</h3>

The given parameters are:

Triangle type = Equilateral triangle

Height (h) = 12

Missing side length = x

The missing side length, x is calculated using the following sine ratio

sin(60) = Height/Missing side length

This gives

sin(60) = 12/x

Make x the subject of the formula

So, we have

x = 12/sin(60)

Evaluate the quotient

So, we have

x = 12/(√3/2)

This gives

x = 24/√3

Rationalize

x = 24/√3 * √3/√3

Evaluate

x = 8√3

Hence, the length of side x in simplest radical form with a rational denominator is 8√3

Read more about triangles at

brainly.com/question/2437195

#SPJ1

6 0
1 year ago
The incenter is the center of the________ of a triangle.
Usimov [2.4K]

Answer: Angle bisectors

Step-by-step explanation:

The incenter is the point forming the origin of a circle inscribed inside the triangle. Like the centroid, the incenter is always inside the triangle. It is constructed by taking the intersection of the angle bisectors of the three vertices of the triangle.

5 0
2 years ago
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What are ALL the solutions for 4-9x ≤40
ivolga24 [154]

Answer:

all work is shown and pictured

5 0
2 years ago
0.5a − 0.3 = 5 (solve for a)
Alla [95]
0.5a - 0.3 = 5

Add 0.3 to both sides:

0.5a = 5.3

Divide both sides by 0.5:

a = 10.6
3 0
3 years ago
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Your bedroom wall is 221 inches wide. You want to hang two posters, each 28 inches across, with an equal space between each post
olga2289 [7]

Answer:

55 inches

Step-by-step explanation:

2 posters x 28 inches each = 56

221 - 56 = 165 inches

3 blank spaces on wall

165 ÷ 3 = 55 inches between posters and on either side

5 0
2 years ago
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