The relationship between a bacteria population p, in thousands, and time d, in days, since it was measured to be 1,000 can be represented by the equation .

Select all statements that are true about the situation.





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Select all that apply:
A: Each day, the bacteria population grows by a factor of 2
B: The equation p=2^d also defines the relationship between the population in thousands and time in days
C: The population reaches 7,000 after log2(7,000) days
D: The expression log2(10) tells us when the population reaches 10,000.
E: The equation d=log2(p) represents a logarithmic function
F: The equation 7=log2(128) tells us that the population reaches 128,000 in 7 days.

Answers

Answer 1

The expression log₂(10) tells us when the population reaches 10,000 and the equation 7 = log₂(128) tells us that the population reaches 128,000 in 7 days.

What is an exponential function?

An exponential function is in the form:

y = abˣ

Where a is the initial value of y and b is the multiplication factor.

Let p represent the bacteria population in thousand after d days.

Since each day, the bacteria population grows by a factor of 2, hence:

[tex]p=2^d[/tex]

Hence, d = log₂p represents a logarithmic function

The expression log₂(10) tells us when the population reaches 10,000 and the equation 7 = log₂(128) tells us that the population reaches 128,000 in 7 days.

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Related Questions

The formula for the circumference of a circle is given as C 2TI, where I is
the radius of the circle. Use this formula to find the radius of a circle that has a
circumference of 34 inches.

Answers

R=c/2pie
R=34/2pie
17pie or 53.407075111 or 53.38

53.407075111 is with actual pie symbol on Calculator

53.38 by times 3.14 (so approximate answer)

Not sure what formal they where trying to get you to use

the radius of a circle is 7cm. Find the circumference of the circle. Use 22/7 for pi

Answers

Answer:

Hi I'm learning the same thing and I just got it I think it's C=43.98cm

Please Help me out!
What is the measure of angle C?

Answers

93°. you set it all equal to 180. 35+52+3(x+2)=180. you distribute the three to the x and the 2 and then combine like terms: 3x+93=180. you then subtract 93 from both sides and you’re left with 87. lastly you divide each side by 3 and get 29. you then plug 29 back in and get 93°
3(x+2) you multiply 3 with x and 2 so then its 3x+6 the you divide both side with 3
3x/3 + 6/3 and then cancel 3x/3 and you get 2

The area of a rectangle can be represented by the expression 10x^2+41x+21. Which of the following expressions could represent the length of the rectangle?

Group of answer choices


2x-7


2x+3


5x+7


5x+3

Answers

Answer:

5x+3

Step-by-step explanation:

(5x+7) is a factor of 10x^2+41x+21.

(5x+3)(2x+7) = 10x^2+41x+21.

The prime number smaller than 18​

Answers

Question:

♦The prime number smaller than 18.

Answer:

♦2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

Explanation:

#Let's Study

#I Hope It's Help

#Keep On Learning

#Carry On Learning

CCSS Math 7
Unit 7. Agles, Triangles, ad Prisms
Find the measure of all the missing anges.


PLEASE HELP WITH ALL THE ANSWERS ITS DUE TOMORROW !!!

Answers

Answer:

1.

a = 112

b = 68

c = 68

2.

a = 127

3.

a=35

b=40

c=35

d=70

4.

a= 30

b=70

c = 30

d=70

e = 130

I'll help you with the rest later

Step-by-step explanation:

a = 112 because of allied angles rule

b and c = 68 because of angles at a point

360-112-112 ÷2

2. a = 127 because of angles on a straight line rule.

180-38-15

3. d= 70, vertically opposite angle

using angles on a straight line, 180 - 70 - 40 ÷ 2

we now have the two angles and because they are vertically opposite a and c = 35

b = 40 because of vertically opposite angles

4. a=30 because 90-70

since a=30, take 90 - 30 to get b, 70

d= 70, vertically opposite angles

e = 130 because a+b+c, vertically opposite angles

Moral law is also called Law of Nature because early philosophers thought that generally speaking, everybody knows it by nature. In this case, do human beings knew that there is such a moral law? Defend your answer

Answers

It is difficult to understand if human beings are truly aware that there is such a moral law, given that they don't share the same principles regarding rules of life.

Natural law

Natural law is supposed to be a universally valid, superior or better law that is considered natural, grounded in the natural order of things. This is the opposite of positive law, the law created by humans.

According to legal positivism, natural law is problematic, since even the so-called fundamental values ​​and norms are not collective, but can conflict and even oppose each other.

In philosophy, natural law is the designation of a way of thinking about man and society that has existed for more than two thousand years, which is based on the basic idea that human nature exists and that society is also based in a natural order.

Learn more about natural law in https://brainly.com/question/545663

х 24, 36, 48
y -8, 1, 10
What is the y-intercept of the line?

Answers

the number -8 is the answer!!

Find all the unknown angle measures in the diagram. Justify your answer for each angle measure.

Answers

Answer:

∠1 is 90° because it is a right angle

To find angle 2, we must add the given angles and x then make the equation equal to 180°, which we next solve for x;

x + 90 + 30 = 180

x + 120 = 180

-120        -120

x = 60, ∠2 = 60°

Angle 5 is vertical to angle 1 which equals 90 degrees, and vertical angles are congruent meaning that they measure the same degrees so therefore ∠5 = 90°

Angles 4 and 40° are vertical to angle 2 which measures 60 degrees;

40 + x(where x equals angle 4) = 60

-40       -40

x = 20, ∠4 = 20°

Specified earlier, angles 40° and 4 are equal to 60°, this means that angle three added to angles 40° and 4 will be equal to 90 degrees since angle 1 is 90 degrees and the other three angles will have to equal 90 degrees because they are supplementary.

So we set up the equation;

40 + 20(angle four) + x = 90

60 + x = 90

-60       -60

x = 30, ∠3 = 30°

F(x)=4^-x after a translation 6 units up

Answers

Answer:

Step-by-step explanation:

QUESTION
[tex]5 \frac{2}{6} \times 6 \frac{70}{30} \div {400}^{2} = ...[/tex]

PLEASE.....​

Answers

Answer:

[tex]\frac{1}{3600}[/tex]

Step-by-step explanation:

400^2 = 160,000

5 2/6 = 32/6 = 16/3

6 70/30 = 250/30 = 25/3

16/3 * 25/3 = 400/9

400/9 / 160,000 = 1/3600

The answer should be around 2.778 when the equation is inputted into a calculator.

To visualize in the form of improper fractions:

5 2/3 = 32/6
6 70/30 = 250/30
32/6 * 250/30 / (400)^2 = 2.778

A catering company provides packages for weddings and for showers. The cost per person for small groups
is approximately Normally distributed for both weddings and showers. The mean cost for weddings is $82.30
with a standard deviation of $18.20, while the mean cost for showers is $65 with a standard deviation of
$17.73. If 9 weddings and 6 showers are randomly selected, what is the probability the mean cost of the
weddings is more than the mean cost of the showers?
O 0.0022
O 0.0335
O 0.9665
O 0.9978

Answers

Using the normal distribution and the central limit theorem, it is found that the probability the mean cost of the weddings is more than the mean cost of the showers is of 0.9665.

Normal Probability Distribution

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].When two variables are subtracted, the mean is the subtraction of the means, while the standard error is the square root of the sum of the variances.

What is the mean and the standard error of the distribution of differences?

For each sample, they are given by:

[tex]\mu_W = 82.3, s_W = \frac{18.2}{\sqrt{9}} = 6.0667[/tex]

[tex]\mu_S = 65, s_S = \frac{17.73}{\sqrt{6}} = 7.2382[/tex]

For the distribution of differences, we have that:

[tex]\mu = \mu_W - \mu_S = 82.3 - 65 = 17.3[/tex]

[tex]s = \sqrt{s_W^2 + s_S^2} = \sqrt{6.0667^2 + 7.2382^2} = 9.4444[/tex]

The probability the mean cost of the weddings is more than the mean cost of the showers is P(X > 0), that is, one subtracted by the p-value of Z when X = 0, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0 - 17.3}{9.4444}[/tex]

[tex]Z = -1.83[/tex]

[tex]Z = -1.83[/tex] has a p-value of 0.0335.

1 - 0.0335 = 0.9665.

More can be learned about the normal distribution and the central limit theorem at https://brainly.com/question/24663213

hey everyone can you help me sort out this problem, answer is 10°​

Answers

4a+20+3a-10+a=90
(Combine like terms)
8a+10=90
-10 -10
8a = 80
8a/8 = 80/8

A=10

Answer:

So here we have 3 adjacent angles, and add them all up they would equal a right angle as shown in the diagram.

POT is the right angle which can be seen by the square

POQ is the first angle

QOS is the second

SOT is the third

Now solve it.

We know that it has to be equal to 90 since thats the final reasoning.

4a + 20 + 3a - 10 + a = 90

Solve.

So you’d get 10.

If you want to elaborate then just say all adjacent angles has to add put o 90 since

Hayden invested $750 for three years at an interest rate of 0.035. How much interest did he earn in that time?



HELPPPPP

Answers

Answer:

$78.75

Step-by-step explanation:

Principle: $750

Interest rate: 3.5%

Time: 3 years

750 x 3 x 3.5 % = $78.75

Find the equation of a circle whose center is at (2, 3) and radius is 6.

Answers

Step-by-step explanation:

2×3=6 I think it's like this

How much sales tax would you pay on a bike that costs $225 and sales tax is 5.3%?​

Answers

The tax would be $11.93

Hope this helps

The movement of the progress bar may be uneven because questions can be worth more or less (including
Which equation is equivalent to 3 - 4x = 12?
0 - 4x = -9
O - 4x = 15
0 4x = -9
4x = 9
Help

Answers

The answer is
0 4x=-9

The required equation 4x = - 9 is equivalent to the given equation 3 - 4x = 12. which is the correct answer would be option (C).

What is the equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

The equation is given in the question

⇒ 3 - 4x = 12

Subtraction by 3 on both sides of the above equation,

⇒ 3 - 3 - 4x = 12 - 3

⇒ 0  - 4x = 9

⇒ - 4x = 9

Multiply by (-1) on both sides of the above equation,

⇒  4x = - 9

Therefore, the required equation 4x = - 9 is equivalent to the given equation 3 - 4x = 12.

Hence, the correct answer would be an option (C).

Learn more about the equation here:

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#SPJ2

18)Write 4 expressions that are equivalent to 6(c
5) - 6?

Answers

Answer:

the answer is 6C+24 or if you divide 6 on both sides c+4

examples/expressions:

1. 4(1.5c+6)

2. 3(2c+8)

3. 2(3c+12)

4. 12(0.5c+2)

5x+2(2x+3)=51 Solve for x

Answers

Answer:

x=5

Step-by-step

5x+2(2x+3)=51

5x+4x+6=51

9x+6=51

9x=45

x=5

The principal at miller street school has 12 packs of new pencils

Answers

Answer: 4

Step-by-step explanation:

Simply divide 12 by 3 because it states she will give 3 to every class,


12/3=4!

An angle whose measure is 92° is in standard position. in which quadrant does the terminal side of the angle fall? quadrant i quadrant ii quadrant iii quadrant iv

Answers

In the quadrant (iv) terminal side of the angle fall. A quadrant is a region/section of a cartesian plane formed when the two axes intersect. It's used to figure out where a point is in a plane.

What is a quadrant?

A horizontal line reached the x-axis and a vertical line reached the y-axis split a plane into four areas in the cartesian system. Quadrants refer to these four areas.

A quadrant is a region of a cartesian plane formed when the two axes intersect. It's used to figure out where a point is in a plane.

The angle in the standard position is measured at 92 degrees. We shall work in an anticlockwise fashion while evaluating positive angles.

Angles measuring 0° to 90° will be found in quadrant iv. Angles between 90° and 180° fall within quadrant iv. Because 92° is halfway between 90° and 180°,

Hence in the quadrant (iv) terminal side of the angle fall.

To learn more about the quadrants refer to the link;

https://brainly.com/question/350459

Answer:

Quadrant IV

Step-by-step explanation:

An angle whose measure is 92° is in standard position. In which quadrant does the terminal side of the angle fall?Quadrant IQuadrant IIQuadrant IIIQuadrant IV

O GRAPHS, FUNCTIONS, AND SEQUENCES
Finding slope given two points on the line
Find the slope of the line passing through the points (5, -8) and (4, -1).
O

Answers

Always use the formula (y2-y1)/(x2-x1) to find a line’s slope, given two points:

(-1- -8)/(4-5) = 7/-1 = -7

-7 is the slope

PLEASE HELP PLEASE HELP PLEASE HELP IM BEGGING PLEASE HELP PLEASE HELP!!!

Answers

Answer:

a) 390

b) 239

c) 151

Step-by-step explanation:

a) 30 + 15 + 45 + 300 = 390

b) 160 + 30 + 9 + 40 = 239

c) 390 (income) - 249 (expenses) = 151 pounds (profit)

The area of a rectangular field is 6916 m² if the length of the field is 91 m what is it width?

Answers

Answer:

76 m^2

Step-by-step explanation:

Area of a rectangle is width*height. So to find width we will do area/height.

Leia wants to buy a jacket that is $45.00. It's on
sale for 22% off. How much will Leia be paying for
the jacket?

Answers

Answer:

  $35.10

Step-by-step explanation:

The discount amount is subtracted from the original price to find the discounted price. That math can be done a couple of different ways.

  discount = discount rate × original price

  sale price = original price - discount

Or, these equations can be combined:

  sale price = original amount × (1 - discount rate)

__

Using the latter equation, we get ...

  sale price = $45.00 × (1 - 0.22) = $45.00 × 0.78 = $35.10

Leia will be paying $35.10 for the jacket.

Around the answer to the nearest dollar
=$

Answers

Answer:

23696

Step-by-step explanation:

[tex]Step1\1\\We\ know\ that:[/tex]

[tex]P=15000[/tex]
[tex]r=6.75[/tex]%
[tex]n=1[/tex]
[tex]t=7[/tex]

[tex]Step\ 2:\ Formulate\ and\ substitute:[/tex]

                                [tex]P=15000[/tex]
                                [tex]r=6.75[/tex]%

[tex]Substitute[/tex]                                  [tex]into\ formula[/tex]

                                [tex]n=1[/tex]
                                [tex]t=7[/tex]

[tex]F=P\ast(1+r/n)^{nt}[/tex]

[tex]F=15000\bullet(1+6.75\bullet\frac{1}{100})^7[/tex]

[tex]Step\ 3:Evaluate[/tex]

[tex]Evaluate\ the\ equation/expression:[/tex]

[tex]23695.53098[/tex]

[tex]Step\ 4:\ Find\ the\ value[/tex]

[tex]Find\ the\ closest\ integer\ to\ 23695.53098:[/tex]

[tex]23696\ YOUR\ ANSWER[/tex]

I hope this helps you

:)

Please help I don’t understand these problems

Answers

Answer:

5x +9 is the least common denominator

Step-by-step explanation:


The data in the table and graph shows the relationship between air and water temperatures at 3 PM at a waterpark. Which statements
are correct?
A)
The data represents a weak correlation
B)
The data represents a positive
C)The data represents am exponential relationship.
D)As air temperature increases,water temperature increases
E)The scatter plot shows the dependence of water temperature on air temperature

Answers

I think E is the right answer

A bag of tiles contains 6 green 4 yellow and 5 blue tiles. If one tile is pulled at random what is the probability of NOT choosing a green tile?

Answers

3/5 or 60% probability of not choosing green

Fuji apples cost $3.00 per pound, and Golden Delicious apples cost $2.00 per pound. A childcare center purchases 30 pounds of a combination of the two types of apples for a total of $80.

A table titled Apples showing Pounds, Cost per Pound and Total. The first row shows Fuji and has 30 minus g, 3, and x. The second row shows Golden Delicious, and has g, 2, and blank. The third row shows Total, and has 30, blank, 80.

Which value could replace x in the table?

30 – g + g
3(30 – g)
30 – g(3)

Answers

Answer:

the answer is $16

Step-by-step explanation:

Answer:

here u go the answer is $16

Step-by-step explanation:

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