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iogann1982 [59]
3 years ago
9

Answer the question in the picture plz

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
3 0
The answer is 10 i believe
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Considera um quadrado de lado 2x e um rectângulo de comprimento x e largura x  2 . Qual é o valor de x para o qual as duas figu
ki77a [65]

Answer:

3 unidades de comprimento

Step-by-step explanation:

O perímetro é definido como a soma de todos os lados.

O perímetro de um quadrado de lado 2x é dado por:

Q=4*2x=8x

O perímetro de um retângulo de comprimento x e largura x² é dado por:

R=2x+2x^2

Para que ambos os perímetros sejam iguais:

R=Q\\8x=2x+2x^2\\x^2=\frac{6}{2}x\\ x=3

O valor de x é igual a 3 unidades de comprimento.

4 0
2 years ago
Z=91 - 27i<br> Real part of z?<br> Imaginary part of z?
Artemon [7]

In z=a+ i b,

$a$ is the real part

$ib$ is the imaginary part.

Comparing, we get:

Real part: $91$

Imaginary part: $-27i$

3 0
3 years ago
How to do #9.........
Serhud [2]
4x and 2x line along a straight line, their sum then must be 180° so

6x=180

x=30

So the angles in there are:

3(30)-5=85°

2(30)=60°

4(30)=120°
5 0
3 years ago
NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!
Tatiana [17]

For this case, we have that by definition, an irrational number is a number that can not be expressed as a fraction\frac {a} {b}, where a and b are integers and b is different from zero.

So, we have the irrational numbers are:

\sqrt {80} = 8.94427190999915\\\pi = 3.1415926535897932384\\\sqrt {12} = 3.46410161513775

Answer:

Option B, D and E

5 0
3 years ago
HIJK is a triangle based pyramid. The base HIJ is an equilateral triangle with side 10cm. The volume of the pyramid is 300cm^3.
Rashid [163]

Answer:

20.78 cm^3 to the nearest hundredth.

Step-by-step explanation:

Volume = 1/3 * a * h    where a = area of triangular base and h = the height.

The area of the triangle

= 1/2 * base * height

Its height = √(10^2-5^2)

= √75.

So its area = 1/2 * 10 * √75

= 5√75

So for the pyramid we have:

300 = 1/3 *  5√75 * h

h = 300 /  (1/3 *  5√75)

= 20.78 cm^3.

3 0
3 years ago
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