Answer:
for the first 14 hours it doubles to 20,000, then once it reaches 28 hours it'll be 40,000. its an exponential growth
The population growth of bacteria after 28 hours will be equal to 40,000.
What is an arithmetic operation?The four basic mathematical operations are the addition, subtraction, multiplication, and division of two or even more integers. Among them is the examination of integers, particularly the order of actions, which is crucial for all other mathematical topics, including algebra, data organization, and geometry.
As per the set of information in the question,
Total population of Bacteria = 10,000
Rate of growth of bacteria = Twice in 14 hours
Rate of growth in 28 hours = 4 times the total population.
Then the total bacteria (B) in the colony after 28 hours,
B = 4 × 10,000
B = 40,000
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please do step by step:
-x^2+4x+1
Answer:
− ( x ^2 − 4 x − 1 )
Step-by-step explanation:
Triangle ABC is similar to Triangle DEF. Use the similar triangles to
answer the questions. (The triangles are not to scale.)
(In pic)
a.) Find the length of the BC and DF.
b.) Find the perimeter of each triangle
please help ! thanks :)
Answer:
Below in bold.
Step-by-step explanation:
As they are similar corresponding sides are in the same proportion so
3/2 = BC/3
2BC = 3*3
2BC = 9
BC = 4.5.
3/2 = 5/DF
3DF = 2*5
DF = 2*5 / 3
= 3.33...
Perimeter of ABC = 3 + 4.5 + 5 = 12.5.
Perimeter of DEF = 2 + 3 + 3.33.. = 8.33...
Answer:
BC = 4.5 cm
DF = 10/3 cm
Step-by-step explanation:
Corresponding sides of similar triangles are in same ratio
[tex]\frac{BC}{EF}=\frac{AB}{DE}\\\\\frac{BC}{3} =\frac{3}{2}\\\\BC = \frac{3}{2}*3\\\\BC = \frac{9}{2}\\\\BC = 4.5 cm[/tex]
[tex]\frac{DF}{AC}=\frac{DE}{AB}\\\\\frac{DF}{5}=\frac{2}{3}\\\\DF = \frac{2}{3}*5\\\\DF = \frac{10}{3}[/tex]
Perimeter of ΔABC = 3 + 5 +4.5 = 12.5cm
Perimeter of ΔDEF = 2 + 3 + 3.3 = 8.3 cm
Ernest's dining room is 19 feet wide and 21 feet long. Ernest wants to install wooden trim around the
top of the room. The trim costs $0.69 per foot. How much will it cost Ernest to buy enough trim?
Answer:
$55.20
Step-by-step explanation:
19x2=38
21x2=42
42+38=80
80x.69=55.2
a school has 415 third grade and 338 second graders how many more third graders are there than second graders?
Answer:
There are 77 more third graders than there are second graders.
Step-by-step explanation:
You just have to subtract 338 from 415 to get your answer.
1.
Dustin's cat weighs 8.75 pounds. What is the weight, in pounds, of Dustin's cat written as a
number name?
I
A. eight and seventy-five
B. eight hundred seventy-five
C. eight and seventy-five tenths
D. eight and seventy-five hundredths
Answer:
D
Step-by-step explanation:
Decimal = "and"
2 decimal places = "hundredths"
What is the largest two-digit number that is a multiple of 5 and 10 at the same time?
Answer:
90
Step-by-step explanation:
90/10= 9
90/5= 18
No number larger than 90 would work.
circumstances of 4 inches. (exact, approximate) and find the exact and approximate area.
Answer:
it keepz saying what i type in here is rude and wont lemme send it help
Pls help I need help why are
Answer:
Both of their bases are parallel
Step-by-step explanation:
The ratio of the heights of two similar cylinders is 1:3. If the volume of the smaller cylinder is 67cm3, find the volume of the larger cylinder. (Create two proportions, set them equal to each other and solve for x)
Answer:
solution given:
similar cylinders ratio 1:3
let the ratio be 1x and 3x respectively:
according to the question:
x/3x=volume of (smaller cylinder/big cylinder)
Volume of big Cylinder=67cm³×3=201cm3
201cm³ is your answer
Determine which pair of points has a negative slope.
(6,9), (5, 7)
(-9, -2), (3,6)
(-8, 1), (8, -8)
(2, -8), (-1, -9)
Answer:
(–8, 1), (8, –8)
Step-by-step explanation:
Answer:
(-8, 1), (8, -8) has a negative slope
Step-by-step explanation:
1). y2 - y1 / x2 - x1
7 - 9 / 5 - 6
= 2
2). y2 - y1 / x2 - x1
6 - (-2) / 3 - (-9)
= 2/3
3). y2 - y1 / x2 - x1
-8 - 1 / 8 - (-8)
-9/16
4). y2 - y1 / x2 - x1
-9 - (-8) / -1 - 2
= 1/3
Newberry Street and Millersburg Avenue intersect. If Newberry Street is 5 meters wide and Millersburg Avenue is 12 meters wide, what is the distance between two opposite corners of the intersection?
Need help just with number 2 please and thank you!!
HELP!!!
A ratio is a comparison between two quantities with different kinds of units. True Or False
Answer:
False
Step-by-step explanation:
A ratio is not necessarily a comparison between quantities with different units, quantities with the same units can be in a ratio in mathematics.
!!!!!!help please!!!!!! Lots of poibts
Answer:
C: y < 3x + 2
Answer:
Step-by-step explanation:
I think the answer is C not really sure..
The surface area of a sphere is 9\piπ cm2. What is the volume?
Answer:
[tex] \frac{9}{\pi} = 4 \times \pi \times {r}^{2} \\ {r}^{2} = \frac{9}{4 {\pi}^{2} } \\ r = \frac{3}{2\pi} \\ volume = \frac{4}{3} \times \pi \times {r}^{3} \\ v = \frac{4}{3} \times \pi \times \frac{27}{8 {\pi}^{3} } \\ v = \frac{9}{2 {\pi}^{2} } [/tex]
REPOST!!!!!! PLEASE HELP IVE WASTED SO MANY POINTS ON THIS QUESTION PLEASE ANSWER ALL!!!!!!!
Answer:
Surface area for no.6 is =178
Volume =132
Step-by-step explanation:
Answer:
132
Step-by-step explanation:
Round 245,675 to the nearest hundred thousand
The solution is, Rounding off 245,675 to the nearest hundred thousand is: 246000.
What is round off?Rounding off means a number is made simpler by keeping its value intact but closer to the next number. It is done for whole numbers, and for decimals at various places of hundreds, tens, tenths, etc.
here, given that,
Round 245,675 to the nearest hundred thousand
we know,
Anything at or above 50 gets rounded up.
49 and below gets rounded down.
so, we get,
here, to the nearest hundred thousand means 675 > 500
so, it will be 5,675 => 6000
we have,
Rounding off 245,675 to the nearest hundred thousand is:
246000
Hence, The solution is, Rounding off 245,675 to the nearest hundred thousand is: 246000.
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HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
D. (3x² + 10w + 8) square inches
Step-by-step explanation:
the new width of the rectangle: w + 2
the new length of the rectangle: 3w + 4
the area: (w + 2)(3w + 4) = 3w² + 10w + 8
Please solve this MATH Question!!!
Answer:
111.79 cm³
Picture down below with an explanation.
Please give Brainliest
Have a great day! :)
Please help...My answer is close but not close enough..
No links :)
Answer:
76
Step-by-step explanation:
(5x3)+(5x3)=30
15-6=9
5x9=45
45+30=75
Since 76 is the closest to 75 it's 76
Help plssss ASAP I’ll give points
Answer:
0.45
Explanation:
the total probability of the spinner landing on red, blue or green is 0.20 + 0.12 + 0.08 = 0.40. thus, the remaining probability of the spinner landing on orange or pink is 1 - 0.40 = 0.60.
since the probability that the spinner will land on orange is three times that of pink, we can divide 0.60 by 3 + 1 to find the probability of it landing on pink:
0.60 ÷ 4 = 0.15
now, we can multiple this by 3 to find the probability that the spinner will land on orange:
0.15 × 3 = 0.45
i hope this helps! :D
Find the length of the third side. If necessary, write in simplest radical form.
Answer: 84 is your answer hope this helped
plz make brainly
Step-by-step explanation:
Answer:
[tex]\sqrt{20}[/tex]
Step-by-step explanation:
Using the pathogrean Theroem we know that --->
a^2+b^2=c^2
In this picture we are given a and b so lets replace our values and solve
2^2+4^2=c^2 ---->
4+16=c^2
20=c^2
[tex]\sqrt{20}[/tex]
The Estrada family has established for cable internet service since the pandemic. When establishing the service, there was an initial fee as well as a monthly fee on the contract. c(m)=35m+40 represents this scenario. How much has the Estrada family paid for internet service if they began service in March 2020?
Given:
When establishing the internet service, there was an initial fee as well as a monthly fee on the contract.
The given function is:
[tex]c(m)=35m+40[/tex]
To find:
The cost of internet service if they began service in March 2020.
Solution:
We have,
[tex]c(m)=35m+40[/tex]
We need to find the internet service cost for the first month. So, substitute [tex]m=1[/tex] in the given function.
[tex]c(1)=35(1)+40[/tex]
[tex]c(1)=35+40[/tex]
[tex]c(1)=75[/tex]
Therefore, the cost of internet service is 75 if they began the service in March 2020.
The radius of a circle is 6 miles. What is the circle's area?
Use 3.14 for .
square miles
A tractor travels at an average speed of 36km/hr for 10 sec.calculate the distance the tractor covers in 10 sec
Answer:
.1km
Step-by-step explanation:
The tractor can move .01 km in a second so 10 times .01 is .1
so the tractor can move .1km every 10 seconds
1 hour = 3600 seconds
10 seconds is 10/3600 = 1/360 of an hour
36 km per hour x 1/360 of an hour = 0.1 km (100 meters)
Shen paid $14.98 for a 7.26 KG bag of dog food. A few weeks later he paid $17.54 or 7.94 kg bag. Find the unit price for each bag.
Answer:
1. Shen payed around $2.06 for the first bag of dog food.
2. Shen payed around $2.21 for the second bag of dog food.
Step-by-step explanation:
First, you have to do 14.98/7.26 to get around 2.06
Then, you do 17.54/7.94 to get around 2.21
Hope this helps!
Jamir loves baseball! He collects baseball cards. He had a total of 50 cards. He gave his best friend Jakobi 10 of his cards, and his brother 15. What fraction of cards does Jamir have left?
Answer:
1/2
Step-by-step explanation:
10+15=25
i love baseball too i play it
Answer:
1/2
Step-by-step explanation:
original amount 50
what he gave away 10+15 = 25
50-25= 25
he has 25 left
25/50 = 1/2
If sin12 = k determine cos24 in terms of k
Recall the double-angle identity,
sin²(x) = (1 - cos(2x)) / 2
Now if sin(12°) = k, then
k ² = sin²(12°) = (1 - cos(24°)) / 2
→ cos(24°) = 1 - 2k ²
Determine if each pair of triangles is congruent. If so, write the congruence
statement and explain how you know the triangles are congruent.
Answer:
top one, yes. by the SSS theorem
bottom one, no. The bases are not congruent
Step-by-step explanation:
What is the potential energy of a 500kg elevator that is 4.0m high from the floor?
Answer:
19,600 JStep-by-step explanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
We have
PE = 500 × 9.8 × 4
We have the final answer as
19,600 JHope this helps you