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svetoff [14.1K]
4 years ago
13

Write the answer to essential question and draw examples

Mathematics
1 answer:
Novosadov [1.4K]4 years ago
6 0
What is the awnser tho
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Write an exponential function whose graph passes through the points (0,-2) and (2,-50)
solniwko [45]

Answer:

first sub in (0,-2) to get

-2 = ab^0, but b^0 = 1

so a=-2

so far we have

y = -2b^x

now use the other point (2,-50)

-50 = -2(b^2)

b^2 = 25

b= ±5

however in exponentional equations the base is usually positve, so now you have

y = -2(5^x)

sub in x=-2 and you got it.

Step-by-step explanation:

hope it helps..

8 0
3 years ago
Un cable guía de 600 pies esta sujeto a la parte superior de una torre de comunicaciones. Si el cable forma un ángulo de 65° con
natita [175]

Answer:

La torre tiene 543.78 pies de altura.

Step-by-step explanation:

Podemos pensar en esta situación como si fuera un triángulo rectángulo, donde el cable es la hipotenusa y la torre es uno de los catetos. (Abajo se puede ver un dibujo de esta situación).

Nosotros queremos encontrar el valor de H, que es el cateto opuesto al ángulo conocido de 65°.

Entonces simplemente podemos usar la relación:

Sin(θ) = (cateto opuesto)/(hipotenusa)

donde:

cateto opuesto = H

θ = 65°

hipotenusa = 600 ft

sin(65°)  = H/600ft

sin(65°)*600ft = H = 543.78 ft

La torre tiene 543.78 pies de altura.

8 0
3 years ago
Find The rule of f(1)
Zarrin [17]

Step-by-step explanation:

f(x) = -12(8)^x

f(1) = -12 * 8¹

= -96

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Help me with my ixl please
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Hey it should be 12.6
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