Answer:
Step-by-step explanation:
In order to determine the equation, consider that any exponential growth equation can be written as follow:
[tex]f(t)=A(1+r)^t[/tex]
where,
f(t): amount of bacteria after t hours
A: initial amount of bacteria = 3
r: growth rate in decimal form = 0.15 (15%)
t: time in hours
By replacing the previous values into the expression for f(t) you get;
[tex]f(t)=3(1+0.15)^t\\f(t)=3(1.15)^t[/tex]
Hence, the answer is f(t) = 3(1.15)^t
Now, replace t = 13 to determine the amount of bacteria after 13 hours:
[tex]f(13)=3(1.15)^13\\f(13)=18.46[/tex]
Hence, after 13 hours there are approximately 18 bacteria
PROBABILITY!! PLS HELP!!
A) make a chart or other diagram to show all of the outcomes
B) Are the outcomes equally likely, if not, which ones are most likely and which ones are lest likely?
(images arnt perfect, pretend they are)
2. The radius of a circle is 11 inches. Find the diameter. (Section 13.1)
Answer:
22
Step-by-step explanation:
diameter = radius x 2
11 x 2 = 22
Jane arranged 99 chairs in 6 rows as evenly as possible.
(a) How many rows had exactly 16 chairs?
(b) How many rows had 17 chairs?
[A] (a) 3 rows [B] (a) 5 rows [C] (a) 6 rows [D] (a) 3 rows
(b) 2 rows (b) 3 rows (b) 2 rows (b) 3 rows
(C)a)6
i didnt know how to do b
Step-by-step explanation:
it is bcz 99÷16 is 6
Answer:
(a) 3 rows had 16 chairs.
(b) 3 rows had 17 chairs.
Explanation:
There must be 6 rows, which is constant.
Make equation's:
1st equation: 16p + 17w = 99
2nd equation: w + p = 6, w = 6 - p
Solve by substitution:
⇒ 16p + 17(6 - p) = 99
⇒ 16p + 102 - 17p = 99
⇒ -p = -3
⇒ p = 3
Then find w, w = 6 - p = 6 - 3 = 3
Hence, there is 3 rows of 16 chairs and 3 rows of 17 chairs.
Try to match match and confirm the answer:
17 × 3 + 16 × 3 = 99 chairs in 6 rowsWrite the final coordinates of the image of D, E, A after the following transformations
Translate the figure using the rule (x + 6, y + 1) and then reflect over the x- axis.
(Enter the ordered pairs in parenthesis without space bar, like (-3,9) )
WILL GIVE BRAINLIEST
Step-by-step explanation:
well, the translation (x+6, y+1) creates the following points :
D goes from (-4,-4) to (2,-3)
E goes from (-4,-2) to (2,-1)
A good from (-1,-4) to (5,-3)
the reflection over the x-axis leaves then the x values unchanged, and negative y values turn positive (or vice versa, if we had a case here).
so,
D' = (2,3)
E' = (2,1)
A' = (5,3)
Sort the cards with there identical matches.
Answer:
A, C, E, L and G, H, B, D
Step-by-step explanation:
(PLS HELP HURRY MY TEACHER NEEDS ME TO PASS THIS!)
What is the rate for the function shown?
A furniture store owner buys a sofa for $400 and marks it up 90% to sell it. During the store's anniversary sale, she sells the sofa for 25% off.
How much profit will the store owner make on the sofa during the anniversary sale?
A furniture store owner buys a sofa for $400 and marks it up 90% to sell it. During the store's anniversary sale, she sells the sofa for 25% off.
How much profit will the store owner make on the sofa during the anniversary sale?
Answer:
$570
Step-by-step explanation:
If she marks up the sofa for 90%, she will change the price to 760$
Now, 25% of 760$ is 190$. So, we subtract 190 from 760 and get 570$
Hope this helped, and have a good one!
Algebra Q92:
0.5 x 80 + 0.3x = 0.4(80 + x)
Find 2x.
Answer:
160
Step-by-step explanation:
0.5 x 80 + 0.3x = 0.4(80 + x)
0.5 x 80 + 0.3x = 32 + 0.4x
40 + 0.3x = 32 + 0.4x
-32 -32
8 + 0.3x = 0.4x
- 0.3x -0.3x
8 = 0.1x
/0.1 /0.1
80 = x
2x so... 2(80)... 2x = 160
word problems involving length and money
Answer: 21
Step-by-step explanation:
Sophia is making a table. All but one of the boards that are used to make the table are 1516 inch thick. Sophia’s last board is 118 inches thick.
Answer:
i do believe it is 316 inch
Step-by-step explanation:
Answer:
D. 38
Step-by-step explanation:
Circle the correct option: A, B, C, or D.
5. There are 150 passengers on board a train. 30 of them are traveling to the airport and the rest are traveling to work. What percentage of the passengers are traveling to work?
A 25%
B 20%
C 60%
D 80%
Answer:
d
Step-by-step explanation:
use your brain
The figures below are similar. What is the length of x?
Please help!!
(I have a graphing coordinates question I need help with desperately too if you can help!)
Answer:
X=14
Step-by-step explanation:
x/7= 48/24
Or,24x=336
Or,x=336/24
True or False, the below is a right triangle: a = 5, b = 12, c =13
!; I have about 10 minutes left and this is my last question,, please help.
Answer:
x = 3
y = 1
Step-by-step explanation:
So to solve this by addition we have to add both x's, y's and the numbers on the other side of the equal sign:
x + y = 4
x - y = 2
Both y's will cancel out because we are subtracting y from y
Adding 4 +2 = 6
2x = 6 (adding both x gets 2x)
x = 3
Now that we found x we can find y by plugging it into either equation:
3 + y = 4
y = 1
We can check these in both equations:
3 + 1 = 4 4 = 4
3 - 1 = 2 2 = 2
These answers are then proven correct!
I hope this helps! Good luck!
Answer this RIGHHT and you'll get Brainliest
Answer:
Circle is closed and Graph shaded to the left
Step-by-step explanation:
In one to two sentences, analyze how Jim Crow laws led to social divisions in the South.
Answer:
Because of the Jim Crow laws in the South, there was a large social divide between races. For example, an African American man would not be allowed to have better wealth or status than a Caucasian man or else he could face harsh punishment that could go as far as death.
Step-by-step explanation:
Hope this helps! Sorry if this is poorly worded haha
I'd recommend word-smithing it a bit to fit your rubric in your class more
Danielle is writing an equation to find the length of the third side of the right triangle. Find her mistake and correct it.
CAN SOMEONE HELP ME WITH THIS?!
Answer:
0.36 or 36%
Step-by-step explanation:
Finding the Mean Probability
Number of total green marbles / Number of total experimentss1 + 5 + 3 / 4 + 12 + 99/250.36 or 36%Answer:36%
Step-by-step explanation:
Finding the Mean Probability
Number of total green marbles / Number of total experimentss
1 + 5 + 3 / 4 + 12 + 9
9/25
36%
A plumber can install the pipes in a bathroom in 4 hours. A different plumber needs 5 hours to do the same job. If both plumbers work together, how many hours will it take to install the pipes?
A. 1
B. 2 2/9
C. 3 1/2
D. 4 1/2
Answer:
it would be 3 1/2
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
If you add 4+5=9 and then divide 9÷2, ( 2 is the number of digits you used) then the answer would be 4 1/2
I NEED HELP PLEASE I LOVE YOU!!!!! What is the mean absolute deviation (MAD) for the set of data?
{21, 18, 14, 23, 34, 40}
Answer: 8
Step-by-step explanation:You Take each number in the data set, subtract the mean, and take the absolute value. Then take the sum of the absolute values. Now compute the mean absolute deviation by dividing the sum above by the total number of values in the data set.
3/y-3 = 12/y+3
Find the value of "y"
please help me...
What is the shape of the cross section of the figure shown?
Answer:
triangle
Step-by-step explanation:
Answer:
triangle
Step-by-step explanation:
answer plsssssssssssssss
Answer:
1005.3 [tex]ft^{3}[/tex]
Step-by-step explanation:
V=π r^2 h = π · 42· 20 ≈ 1005.30965 ---> 1005.3
Answer:
the answer to this question should be 1004.8 because first you need to use this formula to find the volume of a cylinder which is V=TTr^2h so remember the radius is half of the diameter.
So the half of 8 is 4 so 4 is the radius but remember that 4 is to the power of 2 in the exponent so the answer should be 16 because you multiplied 4 times 4 equals 16.
Then we need to multiplied 16 times 3.14 and 20 and when we do that we get an answer of 1,004.8 so 1004.8 feet^3 is the correct answer.
Step-by-step explanation: :DDDDD give brainliest to the first people that answer first than me if you want and have a great day.
Another math question:'(
$180
Step-by-step explanation:
Just calculate the perimeter...
4 yards = 12 feet
And add everything up-
18+10+(18-10)+12+12
=60 feet
60 x 3 =180
There you go
39. If two dice are tossed, find the probability that the sum is greater than 5.
Answer:
11.11%
Step-by-step explanation:
i dont know man i just looked it up but here you go
how do I solve 5(x - 3) - 6(x - 2) ≤ 8
Answer:
x ≥ -11
Step-by-step explanation:
Distribution of the terms
5(x - 3) - 6(x - 2) ≤ 85x - 15 - 6x + 12 ≤ 8Combine like terms
5x - 15 - 6x + 12 ≤ 8-x - 3 ≤ 8
Add 3 on each side.
-x - 3 + 3 ≤ 8 + 3-x ≤ 11Divide by -1 (change sign)
-x/-1 ≤ 11/-1x ≥ -11Select the equivalent expression. (3² - 5)³ =?
Answer:
(9 - 5)^3 = ?
or
9^3 - 5^3 = ?
Answer:
64
Step-by-step explanation:
The computation inside the parentheses must be done first according to Order of Operations rules:
(3² - 5)³ = (9 - 5)³ = 4³ = 64
Paolo is using his grandmother’s cookie recipe. He always doubles the amount of chocolate chips and oats. The recipe calls for 2 1/2 cups of chocolate chips. The total amount of chips and oats after doubling is 6 1/3 cups. Write an equation to find the original amount of oats, x, in the recipe.
Answer:
5cups
Step-by-step explanation:
ill give brainly and 30 points 10 mins before i take the quotation down
Answer:
6.56ft
Step-by-step explanation:
The volume of a cube can be calculated if you know its side length. The formula is then volumecube = side3. This is simply the length of the side multiplied by itself two times.
20. The average height of 3 friends is 153 cm. The heights of two of the friends are 143 cm and 155 cm. How tall is the 3rd friend? Give the answer in centimeters.
Answer:
hi how tall are u oh u r like 2,000cm
wow how is the weather up there
will um pretty nice bird poop
Step-by-step explanation:
