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ipn [44]
3 years ago
15

The perimeter of an equilateral triangle is 51 feet.what is the length of one of its side?explain your work

Mathematics
2 answers:
satela [25.4K]3 years ago
4 0

Hello!

The answer is: 17 ft.

Explanation:

To find this out, just divide the perimeter, and the amount of sides in a triangle, which is 3. This will only work with equilateral triangles because an equilateral triangle has all three sides the same length. Anyway, divide 51 and 3. (51 / 3 = 17) Just to make sure, you can add three 17's together, 17 + 17 + 17 = 51, the perimeter.

I hope this helped! ~Q

xeze [42]3 years ago
3 0
17 feet should be the answer :)
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A customer wants rhombus-shaped tiles for his countertops. The height is 3 inches and the area of each tile is 21.6 in.2. What i
julsineya [31]

The length of each side of the tiles is 7.2 in

<u>Explanation:</u>

Given:

Height of the tile, h = 3 in

Area of each tile, A = 21.6 in²

Length of each side, a = ?

We know:

A rhombus is a type of quadrilateral whose opposite sides are parallel and equal.Also, the opposite angles of a rhombus are equal and the diagonal intersect each other perpendicularly.

To find the area of a rhombus when the measures of its height and side length are given, use the formula

A = Base X height

21.6 in² = a X 3 in

a = 7.2 in

Therefore, the length of each side of the tiles is 7.2 in

3 0
4 years ago
(a-7)(a-3) as a function
stiv31 [10]

Answer:

a^2 −10a+21

Step-by-step explanation:

(a−7)(a−3)

Apply the distributive property by multiplying each term of a−7 by each term of a−3.

a^2 −3a−7a+21

Combine −3a and −7a to get −10a.

a^2 −10a+21

7 0
3 years ago
For each pair of numbers, tell: By what percent of the first number is the second number larger? By what percent of the second n
snow_lady [41]

Answer:

Part A: 100%
Part B: 50%

Step-by-step explanation:

The difference between 10 and 5 is 5

5 is 100% of 5, so 10 is 100% greater than 5 (part A)

  • 5/5 = 1 = 100%

5 is 50% of 10, so 5 is 50% less than 10 (part B)

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Part A is 100%, and Part B is 50%

-Chetan K

4 0
2 years ago
Meg described four triangles as shown below: Triangle P: All sides have length 7 cm. Triangle Q: Two angles measure 55°. Triangl
Vikentia [17]
Triangle P isn't unique because all sides are equal and all interior angles are equal. 
8 0
3 years ago
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Which of the quadratic functions has the narrowest graph?
Nuetrik [128]
<h3>Answer: Choice A) y = -10x^2</h3>

Explanation:

The equation y = ax^2+bx+c has the value of 'a' determine how wide or narrow the graph is. The closer 'a' is to zero, then the wider it gets; while the further 'a' is from 0, the narrower it gets.

What we need to do is look for equations in which the 'a' value is furthest from 0. In this case, it's with y = -10x^2 since a = -10 is furthest from zero compared to a = -0.9 and a = 9. Set up a number line to help see this. You can also use absolute values to get the job as well.

Therefore, y = -10x^2 has the most narrowest graph.

3 0
3 years ago
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