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Yuliya22 [10]
3 years ago
15

Find the perimeter of the triangle? what does 2 represent in the triangle?​

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
3 0

Answer:

i  got  11.8 and what do  u mean by the 2, do u mean the 2 strokes, that means that  they  are equal

Step-by-step explanation:

skelet666 [1.2K]3 years ago
3 0

Answer:

6 + 5\sqrt{5}

Step-by-step explanation:

Since the triangle is isosceles then the 2 marked sides are congruent.

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Thus perimeter (P) is the sum of the 3 sides

P = \sqrt{20} + 3 + \sqrt{20} + 3 + \sqrt{5}

  = 2\sqrt{20} + 6 + \sqrt{5}

  = 2(\sqrt{4(5)} ) + 6 + \sqrt{5}

  = 2 ( \sqrt{4} ×  \sqrt{5} ) + 6 + \sqrt{5}

  = 2(2\sqrt{5} ) + 6 + \sqrt{5}

  = 4\sqrt{5} + 6 + \sqrt{5}

  = 6 + 5\sqrt{5}

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Julli [10]

Answer:

4, 2, 1, 2, 4

Step-by-step explanation:

-2 <= 0, so use the first equation, f(x) = (1/2)^x, to find f(-2).

f(-2) = (1/2)^-2 = 1^-2/2^-2 = 2^2/1^2 = 4/1 = 4

-1 <= 0, so use the first equation, f(x) = (1/2)^x, to find f(-1).

f(-1) = (1/2)^-1 = 1^-1/2^-1 = 2^1/1^1 = 2/1 = 2

0 <= 0, so use the first equation, f(x) = (1/2)^x, to find f(0).

f(0) = (1/2)^0 = 1^0/2^0 = 1/1 = 1

1 > 0, so use the second equation, f(x) = 2^x, to find f(1).

f(1) = 2^1 = 2

2 > 0, so use the second equation, f(x) = 2^x, to find f(2).

f(2) = 2^2 = 4

5 0
1 year ago
The diameter of a circle is 19 feet what is the circumference
alexira [117]

Answer:

The circumference of a circle with a diameter of 19 feet is 59.69

Step-by-step explanation:

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3 0
3 years ago
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What is the answer to 4x=8
solmaris [256]

Answer:

2

Step-by-step explanation:

3 0
2 years ago
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Uma piscina possui 5 m de comprimento, 3 m de largura e 2,5 m de profundidade. Calcule: a) A quantidade de azulejo necessária pa
Westkost [7]

Answer:

a) 70 azulejos

b) 37500 litros

c) 37.5m³

Step-by-step explanation:

A piscina tem 5 m de comprimento, 3 m de largura e 2,5 m de profundidade.

Comprimento = 5m

Largura = 3m

Profundidade (altura) = 2,5 m

Calcular:

a) A quantidade de ladrilhos necessária para cobrir a piscina

Isso é calculado como a área de superfície da votação

A = 2 (wl + hl + hw)

A = 2 × (3 × 5 + 2.5 × 5 +2.5 × 3)

A = 70 m²

Observe que:

1 m² = 1 azulejo

70 m² = 70 azulejos

b) A quantidade de água que pode caber na piscina.

1 m³ = 1000 litres

O volume de uma piscina = Comprimento × Largura × Altura

= 5m × 3m × 2.5m

= 37.5m³

1 m³ = 1000 litros

37.5m³ =

37.5 × 1000 litros

= 37500 litros

c) seu volume em m³

O volume de uma piscina = Comprimento × Largura × Altura

= 5m × 3m × 2.5m

= 37.5m³

7 0
3 years ago
Write an equation of a line with the given slope and y-intercept. m = 1, b = 4 a) y = x – 4 b) y = –1x + 4 c) y = x + 4 d) y = 4
lubasha [3.4K]

Answer:

y = x+4

Step-by-step explanation:

The slope intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

y = 1x+4

y = x+4

3 0
3 years ago
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