El precio de cada acción de una empresa de tecnología ha presentado a través del tiempo un comportamiento dado por la siguiente función:



Donde t es el tiempo dado en días y A es el precio de la acción inicial cuando t = 0. Un inversionista desea conocer el número de días para el cual el valor de la acción se duplica. Para conocer este resultado, el proceso que se debe realizar es reemplazar f(t) por


A.
A/2, luego, expresar la ecuación en forma de logaritmo natural y ahora despejar t.

B.
2A, luego, expresar la ecuación en forma de logaritmo natural y ahora despejar t.

C.
2A, luego, dividir ambos lados de la ecuación por e y ahora despejar t.

D.
A/2, luego, dividir ambos lados de la ecuación por e y ahora despejar t.

Answer:

128

Step-by-step explanation:

becuase 7-8 he sold 2

8-9 he sold 8

9-10 he sold 32

4*2= 8

4*2=32

4*32=128

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Answer:

A.) 12x+15x=120

B.) 5 sweatshirts

Step-by-step explanation:

A.)  Let x=T-shirts

     Let y= Sweatshirts

B.)  12x+15x=120

     12(5)+15x=120

      60 +  15x=120

    -60            -60

________________

            15x=104

           ___   ____

            15        15

___________________

               x=6.93333*

*Round it down to 5

Answer:

6.67 cm

Step-by-step explanation:

since 1 cm is 15 miles we will divide 100 miles by 15 miles

100/15=6.67

now we will take out number and multiply it by the number of cm

6.67 x 1 = 6.67

so on the map they are 6.67 cm apart.

I greatly apologize if this is incorrect

Answer:

Step-by-step explanation:

Answer:

209.2

Step-by-step explanation:

Answer:

y = -3 and x = -5

Step-by-step explanation:

Hi,

-6x + 7y = 9

2x - 2y = -4

Multiply the bottm equation by 3...

-6x + 7y = 9

6x - 6y = -12

Add...

y = -3

Now...

2x - 2 (-3) = -4

2x + 6 = -4

2x = -10

x = -5

Answer...

y = -3 and x = -5

9514 1404 393

Answer:

  3 ft

Step-by-step explanation:

The post is 4/24 = 1/6 as tall as the streetlight, so we expect its shadow to be 1/6 as long as that of the streetlight:

  (1/6)(18 ft) = 3 ft

The parking meter post shadow is 3 feet long.

Answer:

7 3/4 + 1 3/4 - 3 5/6 = 4 + 3/4 + 3/4 + 1/6

Step-by-step explanation:

we do not want the minus sign.

7 3/4 + 1 3/4 - 3 5/6 = 7 3/4 + 1 3/4 - 3  -   5/6

7 3/4 + 1 3/4 - 3 5/6 =  7+  3/4 + 1 +  3/4 - 3  -  5/6

7 3/4 + 1 3/4 - 3 5/6 = 7 + 1 - 3 + 3/4 + 3/4 - 5/6

7 3/4 + 1 3/4 - 3 5/6 = 5 + 3/4 + 3/4 - 5/6

7 3/4 + 1 3/4 - 3 5/6 = 4 + 3/4 + 3/4 + 1 - 5/6

7 3/4 + 1 3/4 - 3 5/6 = 4 + 3/4 + 3/4 + 1/6

Answer:

Step-by-step explanation:

2 opposite semicircle are same

diameter = 9m

radius = 4.5m --- (diameter = 1/2radius)

area of semicircle = 1/2 × π × radius²

= 1/2 × 3.14 × 4.5×4.5

= 31.79m²

2 semicircles area = 31.79 × 2

= 63.8m²

______________________________

______________________________

other 2 opposite semicircle are same

diameter = 20m

radius = 10m --- (diameter = 1/2radius)

area of semicircle = 1/2 × π × radius²

= 1/2 × 3.14 × 10×10

= 157m²

2 semicircles area = 157 × 2

= 314m²

______________________________

______________________________

length = 20m ----- ( given )

breadth = 9m ----- ( given )

area = length × breadth

= 20 × 9

= 180m²

______________________________

______________________________

AREA of whole figure = 63.8 + 314 + 180

= 557.8m²

Answer:

good

Step-by-step explanation:frog

Answer:

y = 1/2x + 2

Step-by-step explanation:

Perpendicular slope = 1/2

( -2, 1)

y - y1 = m(x - x1)

y - 1 = 1/2(x + 2)

y - 1 = 1/2x + 1

y = 1/2x + 2

Answer:

y1=+/2/5+1

y1+/15

/1=+5/36

-2=1/-/12

Answer:38.07

Step-by-step explanation:

If you don't have the apothem value, you will need more information to find the area accurately. The radius alone does not provide enough information to find the area of the regular pentagon.

To find the area of a regular pentagon with a given radius, we need to know the apothem (the distance from the center of the pentagon to the midpoint of one of its sides) in addition to the radius. However, you mentioned only the radius, and it is not sufficient to directly find the area.

If you have the apothem value, you can use the following formula to calculate the area of a regular pentagon:

Area = (5/4) * apothem * side length

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Answer:

x = 1, y = -1

Step-by-step explanation:

Answer:

h(x) = 2(3)^x + 25

Step-by-step explanation:

Answer:

x = 78 and y= 65 is the right ans

Answer:

-12x -8

Step-by-step explanation:

Substitute g(x) into h(x) so h(4x + 3) = -3(4x +3) + 1 = -12x - 9 + 1 = -12x -8

Answer:

25

Step-by-step explanation:

025

18 |450

- 36

090

- 90

00

The gym charges $41.5 per month.

An expression is a number, or a variable, or a combination of numbers and variables and operation symbols.

Now it is given that,

One time fee of gym = $59

Justine will pay after one year = $557

So, gym fees per year = $557 - $59

⇒ gym fees per year = $498

∴ gym fees per month = gym fees per year / 12

⇒ gym fees per month = $498/12

⇒ gym fees per month = $41.50

Thus,the gym charges $41.50 per month.

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Answer:

-60

Explanation:

6x(2x-5) always do what's in the parentheses first

6x(-10)

= -60

Answer:

h=1/10

Step-by-step explanation:

Answer:

52°

Step-by-step explanation:

180-112=68

120-68=52

The size of the angle marked x is 52°.

Given that a hexagon and parallelogram share the same one vertex and the angle of the parallelogram is 112°

To determine the size of the angle marked x by  utilizing the properties of a regular hexagon and the given angle of 112°.

A regular hexagon has interior angles measuring 120° each. Since the hexagon is regular, all six interior angles are congruent. We can divide the hexagon into six equal triangles, each having an angle of 120°.

In parallelogram, the opposite angles are congruent  and the sum of adjacent angles is 180°.

The parallelogram adjacent to the hexagon shares the same vertex as the hexagon's interior angle.

Let the angle adjacent to 112° in parallelogram be a and a is adjacent to angle x in hexagon,

By using parallelogram property gives,

a + 112° = 180°

Subtract 112° from both the sides, gives,

a = 68°

x and a form one angle of the hexagon which is equal to 120° gives,

x + a = 120°

Substitute the value of a = 68° in the above equation

x+ 68° = 120°

Subtract 68° from both the sides, gives,

x = 52°

Hence, the size of the angle marked x is 52°.

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Answer:

Q3 = 30

Step-by-step explanation:

minimum value = 5

Q1 = 20  (this is the median of the lower half of data)

Median (sometimes called Q2) = 25

Q3 = 30 (this is the median of the upper half of data)

maximum value = 45

*this answer i made was incorrect please avoid it*

Answer:

15

Step-by-step explanation:

Pythagoras theorem

a^2+b^2=c^2

12*12=144

9*9=81

144+81=225

sq root of 225 = 15

Answer:

17 degrees

Step-by-step explanation:

-23 + 6 = 17

Answer:

Step-by-step explanation:

you can divide 5 divided by 3 and your answer will be 0.6

Answer:

5x - 1

Step-by-step explanation:

i don't know hw to explain it but that's the answer

Answer:

Equal to.

Step-by-step explanation:

We can prove this by multiplying the numerator and denominator by 2.

1 times 2 and 4 times 2 leaves you with 2/8, proving that the fractions are equal.

You can also show this by modeling it. Two 1/8 slices of pizza are together the same size as a single 1/4 slice of pizza.

Answer:

2x(2x2 -6x) + (7x - 21)

Step-by-step explanation:

4x3 - 12x2 + 7x -21

9514 1404 393

Answer:

  -5 is included in the solution set of the first, but not the second

Step-by-step explanation:

The solution to -2 ≥ 10 is x ≤ -5. The solution to -2x > 10 is x < -5. The difference is that x = -5 is included in the solution set of the first inequality, but is not included in the solution set of the second inequality.

When plotted on a number line, the former inequality has a solid dot at -5, indicating that point is included. The latter inequality has an open dot (circle) at -5, indicating that point is not included. (Both plots are shaded to the left of the dot.)

Answer:

p=-6

Step-by-step explanation:

So we need to get p by its self so we have to to divide both sides to get the answer. 7p=-42 so p= -6 because we divided -42/7