12. A culture of bacteria in the lab doubles every 6 minutes. Assume the growth follows a continuous exponential
model and you start with only 2 bacterium.
Using an appropriate exponential base, if this pattern continues to be applicable, find the time in
which the number of bacteria would reach 109. (Round to the nearest minute.)

Answers

Answer 1

Answer:

18 minutes

Step-by-step explanation:

if you divide 109 by 6, ya get 18.166666-


Related Questions

Solve for the unknown quantity in each proportion.
k over three equals three over nine
A. 1
B. 3
C. 9
D. 27

Answers

Answer:

c

Step-by-step explanation:

you would cross multiply

Could i have the answer to this question please?

Answers

Answer:

a) I don't know sorry

b) i think 2,25km but i'm not sure

Step-by-step explanation:

1:25 000 cm

1:25 00 dm

1:250 m

1:0,025 km

9.250=2250

2,25

An amusement part sells children
tickets, c, for $15 and adult tickets,
a, for $22. On Monday they sold
438 tickets and earned a total of
$7,067. How many children and
adult tickets did they sell on
Monday?

Answers

Let x = number of adult tickets
Then,x+147 = number of children's tickets

8/1 = (x+147) / x

x + 147 = 8x

7x = 147

x = 21

They sold 21 adult tickets and 168 children's tickets.

We have 4 3/4 pounds of apple in each bag. If there are four bags, how many pounds of apples are there in all

Answers

There's 3 pounds of apples total.

(9h + 7j) – (7h – 2;)
Help meeeee

Answers

Answer:

2h+7j+2

Step-by-step explanation:

9h-7h=2

the 7j has nothing to add or subtract

the 2 is a -(-2) so you'd add it.

Which typist is faster,
Glenda, typing 195 words in 3 minutes, or
Jorge, typing 236 words in 4 minutes?
How do you know?
please help <3

Answers

Answer:

Glenda is faster

Step-by-step explanation:

Glenda types 65 wpm (195/3), and Jorge types at 59 wpm (236/4)

You have $49 to spend on vacation in LA. If sales tax in Los Angeles is 9.75% and you want to buy a pair of shoes that are priced at $45, do you have enough money

Answers

No.
45 * 1.0975= 49.39

A battery factory typically produces 12,000 batteries per day and uses 50 boxes for packing the battiest. If the number of boxes needed for packing is proportional to the number of batteries produced, how many more boxes would be needed in a day when 18,000 battiest are produced

Answers

Answer:

Number of extra boxes= 120

Step-by-step explanation:

Giving the following information:

Batteries per box= 50

Number of batteries= 18,000

Number of batteries in ecxess= 6,000

We need to calculate the number of boxes required to cover the 6,000 extra batteries:

Number of extra boxes= number of batteries / batteries per box

Number of extra boxes= 6,000 / 50

Number of extra boxes= 120

simplify (-2n"4+8n"5+7n"3+3)

Answers

Answer:

okay I think this is the right answer if not I'm sorry

−576n⁴-1152x⁵

plz answer only if correct!!

Answers

Angle a is 55 X is -12

what is 8+3-2=a


helpppp

Answers

8+3=11 and 11-2=9 so a=9.

Hello can you help meee

Answers

Answer:

[tex]x=4\sqrt{2}[/tex]

Step-by-step explanation:

The given triangle is a 45°-45°-90° triangle. Use the following rule:

[tex]leg=leg\\\\hypotenuse=leg*\sqrt{2}[/tex]

The length of the legs is 4. Insert this value into the equation:

[tex]h=4*\sqrt{2}[/tex]

Simplify:

[tex]h=4\sqrt{2}[/tex]

:Done

Solve the equation: 2 (x + 2x) - 36
A) X=-18
B) x = 18
cx = -6
D) x = 6

Answers

Answer:[tex]\boxed{x=6}[/tex]Solution Steps:

______________________________

1.) Divide both sides by 2:[tex]2[/tex] ÷ [tex]2=[/tex] Cancels Out[tex]36[/tex] ÷ [tex]2=18[/tex]

 - We do this first because we need the get rid of the parenthesis in order to solve this like a regular problem. In this case the only way to do so was to divide by 2 to separate the Number/Variable from the parenthesis.

Equation at the end of Step 1:

[tex]x+2x=18[/tex]

2.) Combine x and 2x:[tex]x+2x=3x[/tex]

 - We do this because we can't have 2 variables at the end of the equation so it's best to just combine them.

Equation at the end of Step 2:

[tex]3x=18[/tex]3.) Divide both sides by 3:[tex]3x[/tex] ÷ [tex]3=x[/tex][tex]18[/tex] ÷ [tex]3=6[/tex]

 - We divided for the last step since their was 1 variable connected by a number and another number on the opposite side of the equal.

______________________________

there is 1 person he has a friend how do you add him on brainly and how many people are there in total?

Answers

You go on there profile and go to the followers and add whoever you want

Hope this helps

Have a great day/night

A rainwater was 2/3 full of water. After 60 liters of water were used from the barrel, it was 5/12 full. How much water does the barrel hold when full?​

Answers

Answer:  240 liters

=======================================================

Work Shown:

x = capacity of barrel in liters

This value of x is some positive real number. It represents the most amount of water the barrel can hold.

The problem states that the barrel is 2/3 full to start with. This means, we start off with (2/3)x liters of water. Then we subtract off 60 of them to get to 5/12 full, meaning we have (5/12)x liters left.

We can form this equation

(2/3)x - 60 = (5/12)x

Multiply both sides by 12 to clear out the fractions

(2/3)x - 60 = (5/12)x

12*( (2/3)x - 60 ) = 12*(5/12)x

12*(2/3)x - 12*60 = 12*(5/12)x

8x - 720 = 5x

From here we solve for x

8x - 5x = 720

3x = 720

x = 720/3

x = 240

The barrel's full capacity is 240 liters

--------------------------

Check:

2/3 of 240 = (2/3)*240 = 160

The barrel starts off with 160 liters of water inside.

We then use 60 of them to be left with 160-60 = 100 liters

Note how 100/240 = (5*20)/(12*20) = 5/12, showing that 100 liters out of 240 total reduces to the fraction 5/12. In other words, when we say "5/12 full" we mean 100 liters full. This helps confirm we have the right answer.

20 points


Determine whether the statement is true or false. If the statement is​ false, make the necessary​ change(s) to produce a true statement.


To solve the system below by substitution, replace y in the second equation with 7−6x.


6x−y=7


2x+y=5


This statement is true.


This statement is false. To solve the system by​ substitution, replace x in the second equation with 7−6x.


This statement is false. To solve the system by​ substitution, replace y in the first equation with 7−6x.


This statement is false. To solve the system by​ substitution, replace y in the second equation with 6x−7.

Answers

Answer:

To solve the system below by substitution, replace y in the second equation with 7−6x.

==> False

This statement is false. To solve the system by substitution, replace x in the second equation with 7−6x.

==> False.

This statement is false. To solve the system by substitution, replace y in the first equation with 7−6x.

==> False

This statement is false. To solve the system by substitution, replace y in the second equation with 6x−7.

==> True.

From the first equation, 6x-y=7

y= 6x-7

Answer: This statement is false. To solve the system by​ substitution, replace y in the second equation with 6x−7.

i need help again><><><><>

Answers

First thing first your gonna have to find the area of the triangle within the rectangle.

Area of triangle = 1/2 b x h
= (1/2 9) x 4
= 4.5 x 4
= 18 cm square


Then after finding the area of the triangle your gonna find the area of the rectangle.

Area of rectangle = length x width
12 x 4 = 48
= 48 cm square


Then your gonna subtract the area of the triangle from the area of the rectangle.

Area of rectangle = 48 cm square
Area of triangle = 18 cm square
= 30 cm square

So the shaded region is 30 cm square

Sonya made 64 mini cakes for a bake sale at her school. After every 16th cake,
she took a break. How many breaks did she take?

Answers

Answer: 4 breaks

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

64÷16=4 breaks

Hope this helps :>

what is the rate of change for the function y= 5x+ 25

Answers

Answer:

5

Step-by-step explanation:

100% right!!

Answer:

5 or -5

Step-by-step explanation:

rate of change is the same thing as slope (or m)

find the value of x.

Answers

Answer:

Step-by-step explanation:

the ration of the 2 figures are 4/3 from the larger to the smaller one

this means that 4/3*6=8

x-1=8

x=9

choice c

2x+3y=12 Complete the missing value in the solution to the equation. (_,8) I NEED HELP QUICK

Answers

Answer:

-6 is the missing value.....

Answer:

(-6, 8); the missing value is -6

Step-by-step explanation:

First, you need to solve the given equation for x

1: 2x + 3y = 12 (Given)

2: 2x = -3y + 12 (Subtract 3y from both sides to isolate x)

3: x = -1.5y + 6 (Divide both sides by 2)

Now, you can solve for the missing x in the solution set (x, 8):

where x = -1.5y + 6 and y = 8,

x = -1.5(8) + 6

x = -12 + 6

x = -6

So, the missing value is -6

Which expression is equivalent to
8g + 2+ 4g - 2 -2g?
1. 16g+4
2.16g
3.10g+4
4.10g​

Answers

Answer:

4. 10g

Step-by-step explanation:

8g + 2 + 4g - 2 - 2g

8g + 2 + 4g - 2 - 2g = 10g

8g + 2 + 4g - 2 -2g = 0

Final Answer:

10g

Rewrite the expression in the form 8^n

(8^-8)(8^3)

Answers

Step-by-step explanation:

Law of Indices:

a^m * a^n = a^(m + n)

Hence,

8^(-8) * 8^(3) = 8^(-8 + 3) = 8^(-5).

Answer:

8^‐5

Step-by-step explanation:

I think this is correct. if those are exponents.

In a study of 82 Halo game players, it was found that the ages of these players were normally distributed, with a mean age of 17 years and a standard deviation of 3 years. Find the z score for a 21 year old.

A.) 2
B.) -2
C.) -1.33
D.) 1.33

Answers

Answer:

c

Step-by-step explanation:

and bro i am i have a brother that always on my account makes me that im cheating that im not and he always blames me so thats why my bro has too many gfs and always blames me

pls help you i’ll give brainliest

Answers

The answer is 6+(-4) = 2

Answer:

2

Step-by-step explanation:

it's just like saying 6-4 is two a negative is like a positive

What's 200×8797 and rate my L drawing ​

Answers

Answer:

1759400

I like that a lot actually !!

Step-by-step explanation:

Have A Wonderful Day !!

I like your drawing i love L hehe also its 1759400

Which of the following could be the ratio between the lengths of the two legs
of a 30-60-90 triangle?
Check all that apply.
O A. 15:15
OB. 1: 15
O C. 1: 2
OD. 25
E. 2.5: 6
OF. v2:

Answers

9514 1404 393

Answer:

  B, E

Step-by-step explanation:

The ratios of side lengths in a 30-60-90 triangle are ...

  1 : √3 : 2

The two legs are the shorter sides, so any ratio that reduces to 1 : √3 is an appropriate choice:

  B.  1 : √3

  E.  2√3 : 6

A= 1/2 π r ^2 solve for pi

Answers

Answer:

Well thats pretty easy. the answer is non-determineable

Step-by-step explanation:

prove me wrong

The solution for pi is π = 2A/r² where r is the radius.

What is the area of a circle?

The area of a circle is defined as the space occupied by the circle in a two-dimensional plane. In other word, the space occupied under the region or circumference of a circle is called the area of the circle.

The formula for the area of a circle is A = πr²,

Where r is the radius of the circle.

For example, if the radius of circle is 6cm, then its area will be: Area of a circle with 6 cm radius = πr² = π(6)² = 36π square cm.

Given data as :

A = 1/2 πr²

Solve for pi

⇒ A = 1/2 πr²

Multiply by 2 both the side

⇒ 2A =  πr²

⇒ 2A/r² =  π  or

⇒  π = 2A/r²

If A = 76 cm² and π  = 22/7,

⇒ A = πr²

⇒ A/π = r²

⇒ √A/π = r

Substitute the values, we have:

⇒ √76 /(22/7) = r

⇒ √76 * 7/22 = r

⇒ √532/22 = r

⇒ √24.1818 = r

⇒ 4.917 = r

⇒ r = 4.92 cm (Rounding to two decimal places)

Learn more about the area of the circle here:

brainly.com/question/11952845

#SPJ2

The question seems to be incomplete the correct question would be

If A = 76 cm² and π  = 22/7, what is the value of r in centimeters?

Helppp meh please please

Answers

lol your a little kid but hold on
1st box = 10^2
2nd box= 100

SOMEONE PLEASE HELP ASAP NEEDA TURN IT IN IM GIVING 100 POINTS AND BRAINLIEST!!!

A 20 foot ladder is placed against a wall at a 75 degree angle with the ground. The wall is perpendicular to the ground.

PART A: How high on the wall, in feet, will the ladder reach? Round your answer to the nearest tenth. Show your work.

PART B: What is the distance, in feet, from the wall to the base of the ladder? Show your work.

Answers

Answer:

Part A)

Height = 19.3 feet

Part B)

Distance = 5.2 feet

Step-by-step explanation:

Part A)

Let ladder reaches upto the h height of the wall.

[tex] \therefore \sin \theta =\frac{h}{length\: of\: the \:ladder} [/tex]

[tex] \therefore \sin 75\degree =\frac{h}{20} [/tex]

[tex] \therefore 0.9659258263 =\frac{h}{20} [/tex]

[tex] \therefore 0.9659258263\times 20 = h [/tex]

[tex] \therefore 19.3185165 \: ft= h [/tex]

[tex] \therefore h = 19.3 \: ft= h [/tex]

Part B)

Let the distance from the wall to the base of the ladder be x feet.

[tex] \therefore \cos \theta =\frac{x}{length\: of\: the \:ladder} [/tex]

[tex] \therefore \cos 75\degree =\frac{x}{20} [/tex]

[tex] \therefore 0.2588190451 =\frac{x}{20} [/tex]

[tex] \therefore 0.2588190451\times 20 = x [/tex]

[tex] \therefore 5.1763809 \: ft= x [/tex]

[tex] \therefore x = 5.2 \: ft [/tex]

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