A culture started with 3,000 bacteria. After 6
hours, it grew to 3,300 bacteria. Predict how
many bacteria will be present after 9 hours.
Round your answer to the nearest whole
number.
P = Aekt
Enter the correct answer.

The rounded form of the number 9.19 which represents $9 and 19 cents to the nearest 25 cents is; 9.25

It follows from the task content that the number is required to be rounded off to the nearest 25 cents.

On this note, it follows that only 25 cent intervals are considered.

Hence, the number in discuss can either be rounded up to 9.25 or 9.00.

However, since the fractional 19 cents is closer to 25 more than it is to 0 on the number line, the rounded form of the number is;

= 9.25.

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Interpreting the results: We are 90% confident that the true population mean driving distance to work falls within the range of 20.2 miles plus or minus 4.091 miles.

To construct a confidence interval for the population mean μ, we can use the formula:

Confidence interval = sample mean ± margin of error

where the margin of error is given by:

Margin of error = t * (standard deviation / √n)

In this case, the sample mean is 20.2 miles, the standard deviation is 7.1 miles, and the sample size is 12. We need to find the appropriate value of t for a 90% confidence level with (n-1) degrees of freedom.

The degrees of freedom for a sample size of 12 is (n-1) = 12-1 = 11.

Using a t-table or calculator, the t-value for a 90% confidence level and 11 degrees of freedom is approximately 1.796.

Substituting the values into the formula, we have:

Margin of error = 1.796 * (7.1 / √12)

Calculating this value, we find the margin of error to be approximately 4.091 miles.

Therefore, the 90% confidence interval for the population mean μ is:

20.2 ± 4.091

Interpreting the results: We are 90% confident that the true population mean driving distance to work falls within the range of 20.2 miles plus or minus 4.091 miles.

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Answer:    A  y=-2

Step-by-step explanation:

Your y-intercept occurs when x=0  (0,y)

plug in x=0 into equation and solve for y

y = \(\sqrt[3]{x+1} -3\)

y = \(\sqrt[3]{0+1} -3\)

y = \(\sqrt[3]{1} -3\)

y = 1 - 3

y = -2         A

Answer:

Xylem- carries water, Pollen- develops into sperm cells, Seed- contains a plant embryo, Phloem- carries food.

Step-by-step explanation:

Took quiz and got it correct.

Given,

It takes a word processor 24 minutes to word process and spell check 10 pages.

Consider,

Time taken by the word processor to word process and spell check 55 pages is x.

According to the question,

Time taken by the word processor to word process and spell check 55 pages is 132 minutes.

Answer:

Solution given:

x²+x-20=0

x²+5x-4x-20=0

x(x+5)-4(x+5)=0

(x+5)(x-4)=0

either.

x=-5

or

x=4

Step-by-step explanation:

x² + x -20 =0

or, x²+(5-4)x -20

or,x ²+5x -4x -20=0

or,x(x +5)-4(x+5)=0

or,(x+5)(x-4)=o

either,

x+5=0. x-4=0

or,x=0-5. or,x= 0+4

or,x=-5. or, x=4

hope it is helpful to you ☺️

Answer: It can have infinite

Step-by-step explanation:

because numbers never finish

Answer:

-6

Step-by-step explanation:

\(b(x)=x+4\\\\b(-10)=(-10)+4\\\\b(-10)=-10+4\\\\b(-10)=-6\)

To find the equation for Taylor's situation, we can start by defining some variables. Let's let "w" represent the number of weeks that have passed since Taylor started.

We can also let "a" represent Taylor's starting amount of money, which is $8. Now, we know that Taylor adds $10 every week. So after one week, Taylor will have a total of $18 ($8 + $10). After two weeks, Taylor will have a total of $28 ($8 + $10 + $10). And so on. We can see that Taylor's total amount of money after "w" weeks can be represented by the equation: Total amount = a + 10w. Plugging in the values we defined earlier, we get: Total amount = 8 + 10w
This is the equation for Taylor's situation.

It tells us that the total amount of money Taylor has after "w" weeks is equal to $8 plus $10 times the number of weeks that have passed. It's worth noting that we could also write this equation in slope-intercept form as: y = 10x + 8. Where "y" represents the total amount of money Taylor has and "x" represents the number of weeks that have passed. This equation shows us that the slope of the line (which represents how much Taylor's total amount of money increases each week) is 10, and the y-intercept (which represents Taylor's starting amount of money) is 8.

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Answer: 115°

Step-by-step explanation:

180° - 65°  (angles on a straight line)

= 115° (alternate angle to z)

z = 115°

The best measure of variability is the standard deviation.

Player A is the most consistent, with an IQR of 1.5.

Standard deviation is defined as the square root of the variance is used to calculate the standard deviation, a statistic that expresses how widely distributed a dataset is in relation to its mean.

The table shows the number of goals made by two hockey players.

Player A:

2, 3, 1, 3, 2, 2, 1, 3, 6

Using  a statistics calculator, we have:

Mean = 2.56

S.D. = 1.51

Player B:

1, 4, 5, 1, 2, 4, 5, 5, 11

S.D. = 3.03

The best measure of variability is the standard deviation.

Player A is the most consistent, with an IQR of 1.5.

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Answer: help me ill help u

Step-by-step explanation:  

Question

Find the area and the circumference of the circle. Round your answers to the nearest hundredth.

area:

square units

circumference:

units

Answer:

A, B, C

Step-by-step explanation:

just put it into the formula a^2+b^2=c^2

a) 12^2+16^2

= 144+256

= 400 = 20^2

b) 4.5^2+6^2

= 20.25+36

= 56.25 = 7.5^2

c) 5^2+12^2

= 25+144

= 169 = 13^2

The next two dont match

Answer:

Did you learn about equal rectangles? we can prove AEB and CED are equal, which results in what we need to prove here

AE = CE and BE = DE. This can be proved with the help of the properties of congruent triangles.

'A parallelogram is a special kind of quadrilateral that is formed by parallel lines. The angle between the adjacent sides of a parallelogram may vary but the opposite sides need to be parallel for it to be a parallelogram. A quadrilateral will be a parallelogram if its opposite sides are parallel and congruent.'

According to the given problem,

ABCD is a parallelogram.

We know,

BC ║ AD and BC ≅ AD

From, the properties of a parallelogram,

∠CBD = ∠ADB

∠BCA = ∠DAC

We know, two lines are parallel and alternate interior angles of the parallelogram are equal.

Also, Δ BEC ≅ ΔAED (Angle-Side-Angle)

Therefore, AE ≅ CE ( The properties of congruent triangles )

                  BE ≅ DE ( The properties of congruent triangles )

Hence, we can conclude, in the parallelogram ABCD, AE = CE and BE = DE from the properties of congruent triangles.

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The number of items a new worker can be expected to produce on the ninth day (x = 9), we can substitute x = 9 into the equation:

y(9) = 7.7/0.3 - (7.7/0.3) * e^(-0.3*9).

To solve the initial value problem, we need to find the equation for y(x) that satisfies the given differential equation and initial condition.

The given differential equation is:

dx/dy = 7.7 - 0.3y

To solve this first-order linear differential equation, we can rearrange it in the standard form:

dy/dx + 0.3y = 7.7

This is a linear first-order differential equation in the form dy/dx + P(x)y = Q(x), where P(x) = 0.3 and Q(x) = 7.7.

To solve this type of differential equation, we can use an integrating factor. The integrating factor is defined as the exponential of the integral of the coefficient of y, which in this case is 0.3.

First, let's find the integrating factor. The integral of 0.3 dx is 0.3x. Therefore, the integrating factor is e^(0.3x).

Next, multiply both sides of the differential equation by the integrating factor:

e^(0.3x) * dy/dx + 0.3e^(0.3x) * y = 7.7 * e^(0.3x).

Now, we can rewrite the left side of the equation using the product rule for differentiation:

d/dx (e^(0.3x) * y) = 7.7 * e^(0.3x).

Integrating both sides with respect to x, we have:

∫ d/dx (e^(0.3x) * y) dx = ∫ 7.7 * e^(0.3x) dx.

Integrating the right side gives us:

e^(0.3x) * y = 7.7/0.3 * e^(0.3x) + C,

where C is the constant of integration.

Now, divide both sides of the equation by e^(0.3x) to solve for y:

y = 7.7/0.3 + C * e^(-0.3x).

To determine the value of the constant C, we can use the initial condition y(0) = 0. Substituting x = 0 and y = 0 into the equation, we get:

0 = 7.7/0.3 + C * e^(0).

Since e^0 = 1, we have:

0 = 7.7/0.3 + C.

Solving for C, we find:

C = -7.7/0.3.

Now we can substitute this value of C back into the equation for y:

y = 7.7/0.3 - (7.7/0.3) * e^(-0.3x).

To find the number of items a new worker can be expected to produce on the ninth day (x = 9), we can substitute x = 9 into the equation:

y(9) = 7.7/0.3 - (7.7/0.3) * e^(-0.3*9).

Calculating this value, we find that the worker can be expected to produce about 23 items on the ninth day.

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Answer:

y = (-zvx)/w

........

The correct answer would be- A: 2.18

Answer:

Step-by-step explanation:

-2-6-20

Answer $2,295.60:

Step-by-step explanation: i just did this assignment and got it right, hope this helps

Answer:

392m^2

Step-by-step explanation:

as the length = diameter of the circular park

then

Area = length * width = 56 * 7 = 392m^2

Answer:

your answer is in this attachment

Step-by-step explanation:

hope it's helpful to you

have a great day ahead buddy

The probability that the daily production is less than 35.2 liters is 0.6664.

The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 33 liters and standard deviation of 5.6 liters.

To find the probability that the daily production is less than 35.2 liters, we need to find the z-score first. Then we can use the z-table to find the probability.

z-score:

z = (x - μ) / σ

Where,x = 35.2 μ = 33 σ = 5.6z = (35.2 - 33) / 5.6 = 0.43

Now, we need to find the area under the standard normal distribution curve to the left of the z-score of 0.43

.Using the z-table or standard normal distribution table, we can find this probability as:

P(Z < 0.43) = 0.6664

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The interest Grace has to pay on the loan after 120 days is $514.50.

The correct option is letter C.

Grace borrowed $12,500 for 120 days, with the interest charged on the loan at 12.5%.

We can determine the interest to be paid by using the following formula:

Interest = Principal × Rate × Time

Interest = $12,500 × 0.125 × (120 / 365)

Interest = $12,500 × 0.125 × 0.3288

Interest = $514.50

Therefore, the interest Grace has to pay on the loan after 120 days is $514.50.

The correct option is letter C.

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Answer:

5,9,10.

Step-by-step explanation:

The factors of 20 that I know of are 2,5,10

The possible square no. is below 10 that is, either 4 or 9

Using the above no's you can substitute to see which three give 24 as the sum, thus 5,9,10

Answer: 16+4+4

Step-by-step explanation: The answer is 16, 4, and 4.

Square values in 24 are 4,9, and 16.

You can take a look at this and see that a factor of 24 is 4.

You can do 16+4+4.

Hope this helps!

-You Brainly Helper!

Answer: 12 wins per loss- C

Step-by-step explanation:

Got it on edge 2021

Answer:

C

Step-by-step explanation:

Just replaced the x with 5 and check if it is a true statement

Answer:

b

Step-by-step explanation:

trust me

Answer:

A

Step-by-step explanation:

As per the given ratio, the amount of green paid did he make is 40 liters

Here we have been given that in the process of making green paint, here the painter mixes yellow and blue paint in the ratio 6 : 5.

Let us assumed that,

=> Volume of blue paint used = 6x

=> Volume of yellow paint used = 5x

Now, here we also know that the painter used 48 liters of blue paint.

Then the Volume of blue paint used is written as 48 liters

Now, we have to equate the two expressions for volume of yellow paint used, then we get,

⇒ 6x = 48

When we simplify this one then we get

=> x = 8

Here we have to find the volume of yellow paint that can be  used by the painter.

Now, we have to substitute the vale then we get,

=> 5(8) = 40

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Answer:

X = 11

Step-by-step explanation: