Mathematics High School

HELP!!!!!
The initial count of a certain type of bacteria in a culture is 350. If the bacteria grows at the rate of 20% per hour, which function models the number of bacteria after t hours?

f(t) = 350e^1 + 0.2t
f(t) = 350e^1 + 12t
f(t) = 350e^12t
f(t) = 350e^0.2t

Answers

Answer 1

Answer:

I think it is 350(1.2)^t because you take the starting amount (350) and then multiple it by the growth rate (which is 20%, but when added to 100 and the put into a decimal is 1.2) raised by the number of hours (t).

I hope this helps.

Step-by-step explanation:

Related Questions

I don’t know how to do this....Help me please!!

Answers

hahaha s cnxmskxxbzbd xbzbxbxbxnx
the picture is a black screen, we cannot help you,

The vertices of triangle JKL are J(–2, 3), K(1, 6), and L(3, –2). Which type of triangle best describes triangle JKL

A. right scalene

B. non-right scalene

C. right isosceles

D. non-right isosceles

Answers

Answer:

Scalene triangle or right scalene triangle is correct

Step-by-step explanation:

A line passes through the point (-8, 3) and has a slope of 5/4. Write an equation in point-slope form for this line.​

Answers

i found the answer on the app socratic hope this helps also can u please give me brainliest

PLEASE HELP ME!!! Which of the following rational functions is graphed below?

Answers

Answer:

A

Step-by-step explanation:

Someone said A and I think so too

Find the curcumince of the circle. use 3.14 or 22/7.​

Answers

Answer:

the circumference of this circle is approximately 25.12 cm with π as 3.14.

Step-by-step explanation:

circumference of a circle is technically a perimeter of a circle.

we find the circumference of a circle by using the following formula :

c = 2πr                                   or                                 c = πd

r represents the radius                                             d represents the diameter

since 4 yds here is a radius, we use the left formula i placed above. then, we substitute the numbers in. pi represents 3.14 as said in your question. even if you use 22/7, you will still get around the same result.

c = 2πr

c = 2(3.14)4

c = 6.28(4)

c = 25.12 yds

therefore, the circumference of this circle is approximately 25.12 yds.

A piece of rural land sold ten years ago for 40000. The price for the same land this year is $800 more per acre, and it sold for 60000. What is the size of the piece of land in acres?

Answers

Answer: 25

Step-by-step explanation:

From the question, we are informed that the piece of rural land sold ten years ago for 40000 and that the price for the same land this year is $800 more per acre, and it sold for 60000.

The size of the piece of land in acres will then be:

40000 + 800x = 60000

800x = 60000 - 40000

800x = 20000

x = 20000/800

x = 25

The land is 25 acres

Answer: 25

Step-by-step explanation:

40000 + 800x = 60000800x = 60000 - 40000800x = 20000x = 20000/800x = 25

hey can anyone help me?

Answers

Certain games are creative you can learn how to work with a team and accept failure.

Certain games are creative you can learn how to work with a team and accept failure.
step by step explanation:
.
You must find a common multiple between the denominator

Shoppers at a mall have a mean weight of 70 kg 70kg70, start text, k, g, end text with a standard deviation of 10 kg 10kg10, start text, k, g, end text. An elevator at the mall holds a maximum of 6 66 people, and safety engineers are curious about the average weight of shoppers on a full elevator. Suppose that we take random samples of 6 66 shoppers and calculate the mean weight x ˉ x ˉ x, with, \bar, on top of the shoppers in each sample.

Answers

Answer:

The answer is below

Step-by-step explanation:

Shoppers at a mall have a mean weight of 70 kg with a standard deviation of 10 kg. An elevator at the mall holds a maximum of 6 people, and safety engineers are curious about the average weight of shoppers on a full elevator. Suppose that we take random samples of 6 shoppers and calculate the mean weight x ˉ  on top of the shoppers in each sample.

Solution:

Let variable x represent the weight of a shopper at the mall.

Assuming this variable has a normal distribution with mean μ= 70kg and standard deviation σ = 10kg.  

There are random samples of 6 shoppers. That is sample size (n) = 6  

The mean of the sample (μₓ) is the same as the mean of the population (μ), hence:

μₓ = μ = 70 kg

The standard deviation of the sample (σₓ) is equal to the standard deviation of the population (σ) divided by the square root of the sample size (n).. Hence:

σₓ = σ / √n = 10 / √6 = 4.08 kg

Answer:

Mean: 70

Standard Deviation: 4.1

Step-by-step explanation:

Khan Academy Answer

wrote a simplified expression for the perimeter of the triangle
pls help i’ll give brainialist

Answers

Answer:

here, you are simply asked to find perimeter

so add all sides to find it. soln is below

a+5+2a-1+3a-7 = 6a-3= 3(2a-1) ans

1. Leslie visits a local department store in order to purchase summer clothes. The

price of the dress is $40. The dress is marked up 25%. What is the selling price of

the dress?

Answers

Answer:

$50

Step-by-step explanation:

Given data

We are given that the price is $40

the markup percent is 25%

Hence the price will be

40+25% of 40

=40+ 25/100*40

=40+ 0.25*40

=40+10

=$50

Therefore, the price of the dress is $50

A system of two equal equations is shown below
3x + y = 8
4x - 2y = 3
What is the solution of the system?

Answers

Answer:

x=1.9

y=2.3

Step-by-step explanation:

I hope this helped.

Find the simplified product: 2/5x^3(-3/10^2)

Answers

Answer:

−

-3^3/3250

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

correct on edge

What is the formula used to find the area of this
shape? *This symbol: / means divided by
A= b xh/2
A= I xw
A=s2
A= (b1 +b2)h/ 2

Answers

Answer:

A = (b1 + b2)h/2

Step-by-step explanation:

The shape given is a trapezoid having two parallel sides which can be labelled b1 and b2 respectively. The distance between the two parallel sides is the height of the trapezoid, which is labelled h.

Area of a trapezoid is given as:

A = (b1 + b2)h/2

What is the approximate Probability of drawing a Black OR Face Card from a standard deck of shuffled cards?

Answers

Answer:

0.73

Step-by-step explanation:

Number of cards in a standard deck = 52

Number of black cards = 26

Number of face cards = 12

Probability of drawing either a black or face card

Probability = required outcome / Total possible outcomes

P(drawing a black card or face card) = (number of black cards / total card) + (number of face cards / total cards)

= 26/52 + 12 /52

= 0.5 + 0.2307692

= 0.73

What is the volume of a pyramid with a base area of 102 square units and a height of 13 units? 1) 442 units 2) 663 units 3) 1326 units 4) 3978 units.​

Answers

Answer:

3

Step-by-step explanation:

HOPE THIS HELPS SORRY FOR CAPS

What is the slope and y-intercept of the graph?
slope: 1/2
A
y-intercept: 4
slope: -2
B
y-intercept:-4
slope: -1/2
y-intercept: 4
slope: 2
D
y-intercept:4

Answers

Answer:

A

Step-by-step explanation:

A copy machine produces 66 pages of print in 66 seconds.

​ How many pages are produced per second?

Answers

Answer:

1

Step-by-step explanation:

66 pages in 66 seconds.  66/66 = 1

Answer:

1 page per second...

Step-by-step explanation:

did you really just ask us that question...?? if you print 66 oages in 66 seconds, one page is made per second.. you must be joking

Use the data to select the correct line plot. Then answer the question.

Answers

Answer:

B

Step-by-step explanation:

Please help me i need help ​

Answers

Answer:

sin is .6, Cos is .8 and tan is .75

Step-by-step explanation:

Ez

What is the unit rate

Answers

Answer:

1 problem every 5 minutes

Step-by-step explanation:

the way you write the unit type depends on which values are on which axis.

I divided 15 by 3 and got 5

and when dividing the time by problems solved you always get 5 for the values in the table

hope this helps chu <3

How many different arrangements are there of the 3 letters chosen from the word combination

Answers

Answer:

bnnnm

bStep-by-step explanation:

(3ax + 4a) - (9x + 15a)

Answers

Answer:

3ax-11a-9x

Step-by-step explanation:

Help me pls would be appreciated

Answers

Answer:

Sphere volume is this formula

V=(4/3)πr^3

plug in 21 for r in this formula

If you are meant to round pi to 3.14 the answer is = 38722.72

If you are not meant to round pi to 3.14 the answer is = 38792.39

I can't figure this out​

Answers

9514 1404 393

Answer:

∠H = 50°∠A = 80°∠W = 130°

Step-by-step explanation:

It is helpful to remember that opposite angles of an inscribed quadrilateral are supplementary. This lets you find the value of m.

  ∠A +∠K = 180°

  8m° +10m° = 180°

  18m = 180

  m = 180/18 = 10

Using this value we can find ...

  ∠H = 5m° = 5·10° = 50°

  ∠A = 8m° = 8·10° = 80°

  ∠W = 180° -∠H = 180° -50° = 130°

Which sentence expresses the equation 9x=45 in words?
Group of answer choices
A.The product of a number and 9 is 45.
B.The sum of a number and 9 is 45.
C. A number decreased by 9 is 45.
D.A number 45 is 9 more than another number.
Ps its not B

Answers

Answer:

The product of a number and 9 is 45

Step-by-step explanation:

i need sum one smart
if i did 54 push ups in 1 minute what would be the independent variable and the dependent variable

Answers

Answer:

Independent - Minutes

Dependent - Push up #

Step-by-step explanation:

The minutes do not depend on anything so they would be independent. The push ups depend on how many minutes there are so it is dependent.

Hope this helps :)

what is the area of this quadrilateral
A.80 square feet
B.30 square feet
C.50 square feet
D.130 square feet

Answers

It is 50 square feet
A. 80 square feet since the area of the rectangle in the middle is 30 and then we can combine the two triangle on the top and bottom into a rectangle and find out that the area of that is 50 so 50+30=80

At The Family Farm it costs $4 to enter the barn and an
additional $2 for each animal you want to feed. Which
expression represents the cost of feeding y animals?

Answers

Answer:

4 + 2y = x

________________________________

I need help please help

Answers

The answer is y=3x+26

Where is the midpoint of AB if A(6, 4) and B(5,-2)?
A) (11,2)
B (11,6)
C) (5.5,3)
D (5.5,1)

Answers

Answer:

Step-by-step explanation:

The midpoint is just the average coordinates of the endpoints.

mp=((x1+x2)/2, (y1+y2)/2), we have points (6,4) and (5,-2)

mp=((6+5)/2, (4-2)/2)

mp=(5.5, 1)

So D is the answer.

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