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denis-greek [22]
4 years ago
6

Round 12 to the nearest degree

Mathematics
1 answer:
mihalych1998 [28]4 years ago
6 0
I think it's 10
i 'm not sure but still
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seropon [69]
You would have to bring it closer to the stage. At that point initially in the diagram, the angle is 25°. As you can see, the angle is small. But when you bring it closer to the stage, the opening would also increase. Otherwise, if you move it farther away, the opening becomes even smaller.
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3 years ago
Please I need help on a, b, c, d, and e.
a_sh-v [17]

C

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8 0
2 years ago
Una bacteria se divide en dos cada 6 minutos Si a las 12:15 horas se coloca una bacteria en un recipiente¿ A que hora habrá 128
DaniilM [7]

Answer:

A las 12:57 horas habrá 128 bacterias en el recipiente.

Step-by-step explanation:

Una función exponencial es aquella en que la variable independiente x aparece en el exponente y tiene de base una constante a. Su expresión es:

f(x)= aˣ

Siendo a un real positivo, a > 0, y diferente de 1.

Cuando 0 < a < 1, entonces la función exponencial es una función decreciente y cuando a > 1, es una función creciente.

Algunos tipos de bacterias se reproducen por "mitosis", dividiéndose la célula en dos cada espacios de tiempo pequeños, como sucede en este caso. Entonces, "a" tendrá un valor de 2, que es la cantidad en la que se divide la bacteria, y "x" será los intervalos de tiempo. Si hay 128 bacterias en el recipiente, la expresión exponencial del crecimiento de la bacteria en x intervalo de tiempo será:

2ˣ= 128

Una manera de resolver la x es aplicando logaritmos. Entonces, aplicando el logaritmo común de ambos lados. (Cuando la base no está escrita, se trata de la base 10):

log (2ˣ) = log (128)

Aplicando la propiedad de la potencia de los logaritmos:

x* log (2)= log (128)

x= log (128) ÷ log (2)

x= 7

Cada intervalo de tiempo tiene 6 minutos, que es el tiempo en que una bacteria se divide en 2. Entonces, el tiempo que se tarda en obtener 128 bacterias se calcula como:

7 intervalo* 6 minutos= 42 minutos

Si a las 12:15 horas se coloca una bacteria en un recipiente, entonces el horario a la que habrá 128 bacterias se calcula como:

12:15 + 42 minutos= 12:57

<u><em> A las 12:57 horas habrá 128 bacterias en el recipiente.</em></u>

3 0
3 years ago
Find the part using the multiplication shortcut.<br> 17.5​% of 1440 cell phones
kobusy [5.1K]

Answer:

252

Explanation:

An equation to represent the situation is:

17.5% * 1440

convert 17.5% into a decimal:

0.175

and then solve:

0.175 * 1440 = 252

5 0
3 years ago
Read 2 more answers
2) What is the value of y?<br><br><br> A) 2 B) 10 C)9 D)12<br><br>(geometry)​
ycow [4]

Answer:

D) y = 12

Step-by-step explanation:

One can use the angle bisector theorem to solve this problem. The angle bisector theorem states:

\frac{a_1}{b}=\frac{a_2}{c}

Where (a_1) and (a_2) are a part of the side that is intersected by the angle bisector and (b) and (c) are the other two sides in the triangle. Substitute in the given values and solve for the unknown.

\frac{4}{8}=\frac{6}{y}

Simplify,

\frac{1}{2}=\frac{6}{y}

Cross products,

12=y

3 0
3 years ago
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