2.
Find x
4x+5
10x-40
6x+5
X=
FIND X?!??

Answer: [tex]y= 2300(1.072)^t[/tex]

Step-by-step explanation:

The exponential growth equation : [tex]y=A(1+r)^t[/tex] , where A=initial value, r= rate of growth , t= time.

Given: A = 2300,  r= 7.2% = 0.072  

Let t be the number of hours since the start of the study. Let y be the number of bacteria cells.

then, the exponential function showing the relationship between y and t will be:

[tex]y= 2300(1+0.072)^t\\\\\Rightarrow\ y= 2300(1.072)^t[/tex]

Answer:

1/2 batch

Step-by-step explanation:

1/2=1

1/4=1/2

Answer:

1/2 batches

Step-by-step explanation:

Please see the attached image.

I hope this helps!

Answer: B

Step-by-step explanation: Used a calc

Answer:

Step-by-step explanation:

[tex]Consider \ the \ following \ series[/tex]

[tex]\lim_{n \to \infty} \sum \limits ^n_{i=1} x_i \ In ( 1+ x_i^2) \Delta x , [2,7][/tex]

[tex]Let's \ recall \ the \ explanation \ of[/tex] d[tex]efinite[/tex] [tex]\ integral \ in \ terms \ of \ Riemann \ sum[/tex]

[tex]\int^b_a \ f(x) \ dx = \lim_{n \to \infty} \sum \limits ^n_{i=1} \ f(x_i) \Delta x , \ where \ \Delta x = \dfrac{b-a}{n}[/tex]

[tex]By \ efinition, \ the \ limit \ is \ then \ expressed \ as \ integral[/tex]

[tex]\lim_{n \to \infty} \sum ^a_{i=1} \ x_i \ In (1+x_i^2) \Delta x = \int^7_2 xIn (1+x^2) \ dx[/tex]

Answer:

9) y = -x

10) y = -3/2x + 12

11) y = 3/4x - 5

12) y = -2/3x

Answer:

36

Step-by-step explanation:

80 * .45 = 36

Answer:There are 36 pop songs on your playlist

Step-by-step explanation:

Answer:

0,0

2,-1

-2,4

Step-by-step explanation:

Answer:

its negative 8

Step-by-step explanation:

you can see it there

Answer:

it's 3a+.50b

Step-by-step explanation:

Answer:

1).  -12

2).  -6

Hope this helps<3

Answer: VTU and HGF

Step-by-step explanation:

Answer:

fraction-3/10

decimal-.3

Answer:

Step-by-step explanation:

There are a few ways you could look at this, but this is the way that I prefer:

A percent is essentially already a fraction out of 100. 100% = 1. Therefore, 30% = [tex]\frac{30}{100}[/tex].

To simplify this, divide the top and the bottom by 10. This equals [tex]\frac{3}{10}[/tex]. Because 3 is a prime number and 10 is not divisible by 3, this is completely simplified.

To find the percent of any fraction, the easiest way is to simply divide the top by the bottom.

3/10 = 0.3

This is your final answer, as there is no number in the hundredth place or beyond to concern yourself with.

Answer:

1/24

One fourth of 1/6 is 1/24

Answer:

I don't know the answer but I suggest u get help from a tutor

they help a LOT

Answer:

A

Step-by-step explanation:

All triangles angles add up to 180°

Answer:

The answer is c

Step-by-step explanation:

Well, since the Circle is 8cm you can divide the circle by two to get 4

Answer:

14

Step-by-step explanation:

Answer: 28.3 %

Step-by-step explanation:

60-43 = 17

17/60 = 0.283

Answer:

24.5 points

8 points

Step-by-step explanation:

khan academy

The mean is 1.95 and the standard deviation is 2.41 for the given distribution.

A standard deviation (σ) is a measure of the distribution of the data in reference to the mean.

The given data as :

Correct question (x)  Probability                

        0                           0.05  

        1                            0.20

        2                           0.50

        3                           0.25  

In this scenario, we must calculate the mean, which is the product of the correct question and the probability. The mean will then be subtracted from the correct question. multiply the difference between the correct question and the mean by probability. This indicates the pay variance. off's The standard deviation of the distribution is given by taking the square root of the variance of the correct question.

Mean = 0 × 0.05  + 1 × 0.20 + 2 × 0.50 + 3 × 0.25

Mean  = 1.95

Variance = (0 - 1.95)² + (1 - 1.95)² + (2 - 1.95)² + (3 - 1.95)²

Variance = 3.8025 + 0.9025 + 0.0025 + 1.1025

Variance = 5.81

Standard deviation = √(Variance)

Standard deviation = √(5.81)

Standard deviation = 2.41

Thus, the mean is 1.95 and the standard deviation is 2.41 for the given distribution.

Learn more about the standard deviation here:

brainly.com/question/16555520

#SPJ2

Step-by-step explanation:

it will take 21/20hours

Answer:

10y

Step-by-step explanation:

Answer:

Question 11 - B

Question 12 - C

Step-by-step explanation:

11). 4 chairs per table --> B

12). The 24 pack is a better buy (C).

Answer:

it is a it's a

Step-by-step explanation:

Answer:

D (I think)

Step-by-step explanation:

If you multiply -4 times -2 you get positive 8 and the five stays the same so it would be 8/5. If you multiply -4 times 3x you would get -12x. So the total equation would read 8/5 - 12x

Answer:

0.4 > 0.19

Step-by-step explanation:

you can view it as 40 and 19, so which is bigger 40 or 19?

Answer:

x=7

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Let's solve your equation step-by-step.

58=9x−5

Step 1: Flip the equation.

9x−5=58

Step 2: Add 5 to both sides.

9x−5+5=58+5

9x=63

Step 3: Divide both sides by 9.

9x/9 = 63/9

x=7

Answer:

cube................

Answer:

A)

Step-by-step explanations: