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miv72 [106K]
3 years ago
6

Plzzz help for brianly

Mathematics
1 answer:
Temka [501]3 years ago
4 0

Answer:

Add up the area of all the sides

Step-by-step explanation:

Surface area is the shell of a 3d shape, not the volume so you add the outside of the shape.

Hope this helps! :)

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30 POINTS PLEASE HELP! Evaluate the piecewise-defined function at x=3. See picture below
VladimirAG [237]

Answer: -11

Step-by-step explanation:

For this problem, it is important to look at the domains next to the function. In this problem there is a function for when x < 1 and when x ≥ 1. 3 is greater than 1, so we will use the second equation.

From there, plug in 3 for x and solve.

-2x - 5

-2(3) - 5

-6 - 5

-11

4 0
3 years ago
This is due in a hour, plz help.
Alika [10]

Answer:

<u>To solve for x using the exterior angle thm:</u>

3x + 6x = 99

9x = 99

x = 11

<u>m<T:</u>

3x

3(11)

33

<u>m<W:</u>

6x

6(11)

66

<u>m<TUW:</u>

180 - 99

81

7 0
3 years ago
Eli walk from her house to a friends house in one hour. She can travel the same Distance on her bicycle in 15 minutes. If she ri
lord [1]

Answer: her speed on the bicycle is 8 mph

Step-by-step explanation:

Let x represent the speed at which she walks. If she rides 6 mph faster than she can walk, then the speed at which she rides is (x + 6) mph

Distance = speed × time

Eli walk from her house to a friends house in one hour. This means that the distance covered is 1 × x = x miles.

Distance on her bicycle in 15 minutes. Converting 15 minutes to hours, it becomes 15/60 = 0.25 hour. Distance covered while riding is 0.25(x + 6) = 0.25x + 1.5

Since the distance is the same,then

x = 0.25x + 1.5

x - 0.25x = 1.5

0.75x = 1.5

x = 1.5/0.75

x = 2

her speed on the bicycle is

x + 6 = 2 + 6 = 8 mph

3 0
3 years ago
En la terminal del norte de la ciudad de mexico tienen varias corridas hacia el norte del pais la primera sale cada 10 minutos l
creativ13 [48]

Las cuatro carreras saldrán juntas después de 1 hora = 8:00 a.m.

Primera ejecución = 10

Segunda ejecución = 12

Tercera carrera = 15

Cuarta carrera = 30

Dado que las cuatro carreras salieron juntas a las 7:00 a.m. del lunes;

Para calcular el tiempo que los cuatro volverán a funcionar juntos,

Calculamos el mínimo común múltiplo de los cuatro:

Múltiplos de:

10:10, 20, 30, 40, 50, 60, 70, 80, 90

12:12, 24, 36, 48, 60, 72, 84, 96, 108

15:15, 30, 45, 60, 75, 90, 105

30:30, 60, 90, 120, 150, 180, 210

El mínimo común múltiplo de 10, 12, 15 y 30 es 60.

Por lo tanto, las cuatro carreras volverán a salir después de 60 minutos, que es:

60 minutos = 1 hora

7:00 a.m + 1 hora = 8:00 a.m

Más información: brainly.com/question/24560329

7 0
3 years ago
-28 (-13)<br> Can someone please?
ANTONII [103]
Answer: 364

The negatives turn into positive 28•13=364
6 0
4 years ago
Read 2 more answers
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