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olga55 [171]
3 years ago
11

Em de terminado dia, sofia voltava de sua casa 2h30min acima do horario que sua mãe determinou para sua própria segurança . Sabe

ndo que o horário que sua mãe determinou foi as 20h, qual horário que ela estava voltando?
Mathematics
1 answer:
Gre4nikov [31]3 years ago
8 0

Responda:

22:30

Explicação passo a passo:

Dado que :

Hora definida pela mãe = 20h00

Número de horas além do tempo definido = 2 horas e 30 minutos

Hora em que ela voltou para casa:

(tempo definido pela mãe + número de horas além do tempo definido)

(20h + 2 horas e 30 minutos) = 22h30

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A board that measures 3/4 feet long is cut into 6 equal pieces. What is the length of each piece?
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Answer:

See below:

Step-by-step explanation:

So we know that there is a \frac{3}{4} feet long board and that it is split into 6 pieces.

With that information, we can split it by doing the following:

1. \frac{3}{4} *\frac{1}{6}

We can do this because we have a board that is 0.75 feet long and we multiply it by one sixth because we want to divide a fraction and to do that we have to flip the fraction.

After doing that, we get our answer of \frac{3}{24}=\frac{1}{8}

This means that each piece is \frac{1}{8} feet long.

Cheers!

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Answer:

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Step-by-step explanation:

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Find the length of diagonal XU in the hexagon below. Round your solution to 2 decimal points
SpyIntel [72]

Answer:

The length of diagonal XU is 6.40 units

Step-by-step explanation:

* Lets explain how to find the distance between two points

- The rule of the distance between two points (x_{1},y_{1})

 and (x_{2},y_{2}) is:

 d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}

* Lets solve the problem

-From the attached figure:

- The coordinates of the vertex X are (2 , 2)

- The coordinates of the vertex U are (-2 , 7)

∴ The point (x_{1},y_{1}) = (2 , 2)

∴ The point (x_{2},y_{2}) = (-2 , 7)

∴ x_{1}=2,x_{2}=-2

∴  y_{1}=2,y_{2}=7

∵ d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}

∴ d=\sqrt{(-2-2)^{2}+(7-2)^{2}}=\sqrt{(-4)^{2}+(5)^{2}}=\sqrt{16+25}=\sqrt{41}

∵ \sqrt{41}=6.403124

∴ d = 6.40

* The length of diagonal XU is 6.40 units

6 0
3 years ago
Find θ, 0° ≤ θ < 360°, given the following information.
ludmilkaskok [199]

Answer:

210°

Step-by-step explanation:

Given

sinΘ = - \frac{1}{2}

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Thus the required angle in the third quadrant is

Θ = 180° + 30° = 210°

3 0
3 years ago
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