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Anna71 [15]
3 years ago
10

What is the total surface area??Please help me I’m so confused i have a test tomorrow

Mathematics
2 answers:
Tamiku [17]3 years ago
8 0

Answer:

216 :)

Step-by-step explanation:

There are five sides in total. To find the total surface area we have to find the area of each side.

Let's start off easy with the rectangle at the base. The width and length are 7 and 6, which gives us an area of 42.

The rectangle with dimensions of 8 as the length and 7 as the width gives us an area of 56.

The rectangle with a length of 10 and a width of 7 gives us 70 as an area.

The two triangles are congruent, so all we have to do is find the area of one and multiply it by two. The formula for an area of a triangle is 1/2(bxh)-or the two legs multiplied by each other and then divided by 2. The length of one of the legs is 8, and the other is 6. That gives us 48, which we will then divide by 2 to give us a total area of 24. Now we have to multiply that by two because there are two triangle sides on this figure and they are congruent. That gives us a product of 48.

Now we add up all the areas of each side:

42 + 56 + 70 + 48 = 216

ki77a [65]3 years ago
6 0
214 is the correct answer
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enot [183]

Answer:

La altura del globo con respecto al suelo es 449,6 metros.

Step-by-step explanation:

La afirmación está incompleta. El enunciado completo es: "Un globo vuela entre dos ciudades A y B, que distan entre sí 1.500 m. Los tripulantes del globo ven la ciudad A con un ángulo de depresión de 27°, mientras que para ver la ciudad B es de 36°. ¿Cuál es la altura aproximada del globo con respecto al suelo?

El diagrama geométrico de la situación se encuentra descrita en el archivo adjunto. La altura aproximada del globo puede obtenerse con ayuda de las funciones trigonométricas, en este caso, se recomienda utilizar la función tangente de los ángulos de depresión:

Ciudad A

\tan 27^{\circ} = \frac{h}{1500\,m-x}

0,510 = \frac{h}{1500\,m-x}

Ciudad B

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0,727 = \frac{h}{x}

Donde h y x son la altura con respecto al suelo y la distancia horizontal con respecto a la ciudad A.

A continuación, se elimina la altura de ambas ecuaciones por igualación y se determina la distancia horizontal del globo con respecto a la ciudad A:

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Finalmente, la altura del globo con respecto al suelo es:

h = 0,727\cdot x

h = 0,727\cdot (618,432\,m)

h = 449,600\,m

La altura del globo con respecto al suelo es 449,6 metros.

6 0
4 years ago
In a survey of 100 Phoenix high school students, 40 were
melomori [17]

Answer:

40 part-time male students were in the survey.

Step-by-step explanation:

Given:

Total number of  students in the Phoenix high school = 100

Number of female student = 40

Number of male student who went to  Phoenix  Full time = 20 students

Total number of  full time students = 50 students

To Find:

Number of part time male students in the survey = ?

Solution:

we know that the total number of students  = 100

Now total number of male students  = total number of students - total number of female student

Now total number of male students  = 100 - 40 =  60 students

Now among these 60 students, 20 males went to Phoenix

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So the remaining male students = 60-20 =40 students

Hence these 40 students are part-time male students

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4 years ago
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Answer:

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