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3 years ago

3 QUESTIONS FOR 40 POINTS!! Will mark brainliest!!

Advanced Placement (AP)

1 answer:

Ann [662]3 years ago

4 0

Answer:

1.) How do solar thermal generators work?

D.) They use solar cells to covert sunlight directly into electricity

2.) Fossil fuel dependence has an impact on which of the following?

A.) the environment

3.) How much money does the United States lose each year due to the non-local resource trade deficit?

D.) 300 billion

Explanation:

In solar thermal generators. they depends solely on sun's energy for its energy generation and distribution. <em>The energy generation made use of solar cells which are cells joined together in series which helps in trapping the sun's energy and converting them into electric charges for its onward transmission to the circuit and battery leading to electricity. </em>

On the other-hand, over dependence on fossil fuel causes environmental issues like global warming due to gas flaring etc.

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1) Calcula la diagonales de un poligono n lados. Heptágono: 2 puntos

ahrayia [7]

Answer:

El número de diagonales de un polígono de n lados se calcula mediante la siguiente fórmula:

$d = \frac{n\cdot (n-3)}{2}$ (1)

Donde:

$d$ - Cantidad de diagonales del polígono.

$n$ - Cantidad de lados del polígono.

Bajo esta fórmula, tenemos los siguientes resultados:

a) El heptágono tiene 14 diagonales.

b) El octágono tiene 20 diagonales.

c) El eneágono tiene 27 diagonales.

d) El decágono tiene 35 diagonales.

e) El pentadecágono tiene 90 diagonales.

Explanation:

La cantidad de diagonales de un polígono se puede determinar mediante la siguiente ecuación:

$d = \frac{n\cdot (n-3)}{2}$ (1)

Donde:

$d$ - Cantidad de diagonales del polígono.

$n$ - Cantidad de lados del polígono.

A continuación, calculamos la cantidad de diagonales de los siguientes polígonos:

Heptágono ( $n = 7$ )

$d = \frac{7\cdot (7-3)}{2}$

$d = 14$

El heptágono tiene 14 diagonales.

Octágono ( $n = 8$ )

$d = \frac{8\cdot (8-3)}{2}$

$d = 20$

El octágono tiene 20 diagonales.

Eneágono ( $n = 9$ )

$d = \frac{9\cdot (9-3)}{2}$

$d = 27$

El eneágono tiene 27 diagonales.

Decágono ( $n = 10$ )

$d = \frac{10\cdot (10-3)}{2}$

$d = 35$

El decágono tiene 35 diagonales.

Pentadecágono ( $n = 15$ )

$d = \frac{15\cdot (15-3)}{2}$

$d = 90$

El pentadecágono tiene 90 diagonales.

8 0

2 years ago

With the exception of Hawaii, the map shows the pattern of production for coffee beans by country. If the map was reproduced at

tekilochka [14]

Answer: C, The states in northern Mexico and northern India would not show any production. *

Explanation: Both the southern states of Mexico and India are known to produce coffee and I believe that their northern states produce little to no coffee. Additionally, East Africa and Southeast Asia are major producers of coffee beans so A and B are inaccurate.*

*This answer is not by any means entirely correct and is my own assumption but if you do a little research on the coffee production of Mexico and India, you will find that their southern states are often mentioned, and more so than their northern states.

6 0

2 years ago

Read 2 more answers

The distance the piston must travel from tdc to bdc is referred to as the _______ of the engine.

Troyanec [42]

C. Stroke if I'm not mistaken.

Good luck!

7 0

3 years ago

Given a right circular cone, you put an upside-down cone inside it so that its vertex is at the center of the base of the larger

Paha777 [63]

Answer:

Pretty sure I figured it out, 4/27. I found this by simplifying:

((1/3pi (h - 2/3 h))(4/9 r^2)) / (1/3 pi r^2 h)

5 0

3 years ago

When Ryan is serving at a restaurant, there is a 0.750.750, point, 75 probability that each party will order drinks with their m

g100num [7]

Answer:

500 drinks

Explanation:

0.75 times 666 is 500.

5 0

3 years ago