Mathematics High School

PLEASE HELP THIS IS SUPER IMPORTANT!!!! A culture of bacteria has an initial population of 860 bacteria and doubles every 9
hours. Using the formula Pt= P0x2t/d, where Pt is the population after t hours, Po
is the initial population, t is the time in hours and d is the doubling time, what is the
population of bacteria in the culture after 4 hours, to the nearest whole number?

Answers

Answer 1

Answer:

1170

Step-by-step explanation:

Substitute values into given equation and solve for P(t):

P(t) = P₀*2^(t/d)P(4) = 860*2^(4/9) = 1170 (rounded)

Related Questions

Please tell me how to slove this?

Answers

Answer:

Step-by-step explanation:

ok so first you have to find the area of the white triangles, so the first one is 2 x 4= 8 cm2 and the second one is 3 x 2.5= 7.5 cm2, 8+7.5= 15.5 cm2, so the non-shaded region is 15.5 cm2, ok now find the area of the whole rectangle and subtract 15.5 from it hope this helped :)

please help! 10 points and brainlyist!!

Answers

Answer:

1.80 in^3

1.0 fluid ounces^3

Step-by-step explanation:

volume of a cone = 1/3 πr²h

π = 3.14

r = 2.2 / 2 = 1.1

h = the value of h can be determined using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c = hypotenuse

1.8² = 1.1² + b²

3.24 = 1.21 + b²

3.24 - 1.21 = b²

2.03

b = √2.03 = 1.42

Volume = 1/3 x 3.14 x 1.21 x 1.42 = 1.80 in^3

1.80 x 0.554 = 1.0 fluid ounces^3

A sociologist conducts an experiment to see how watching a documentary on young men in gay relationships affects individual attitudes toward gay marriage. Both men and women are given a survey, but only those in the experimental group watch the video before answering the survey questions. Identify the dependent variables in this experiment.\

Answers

Answer:

those people in the experimental group who watch the video.

Step-by-step explanation:

A dependent variable is defined as a variable for which the value depends on the other factors. A change in the depended variable in an experiment changes the result of the experiment or the research.

In the context, a sociologist who conducts an experiment to see the affect on the relationship in the young men after watching a video. Here the dependent variable are the young men and women who are given the video to watch before they answer the question.

Solve this equation

1 . B/-7 = 4

Answers

Step-by-step explanation:

B/-7 = 4

Cross multiple

-7×4 = B

-28 = B

Answer:

-28

Step-by-step explanation:

First, multiply 4*-7= -28.

You're done. B=-28

Hope this helps!

For people who have taken PreCalc/Calc:

Find the constant a such that the function is continuous on the entire real line.

(Summer Math Packet)

Answers

Answer:

cant see the picture

Step-by-step explanation:

EXERCISE 22.3
1.Divide 250 in the ratio 3:2
2.Divide 144 in the ratio 1:2
3.Divide 10 kg in the ratio 2:3
4.Divide 1 hour in the ratio 5:7
5.Divide 8m in the ratio 3:13
6.Divide 45 km in the ratio 7:8.
7.Divide 4 hours in the ratio 5:3
8 .Divide 2 kg in the ratio 3:7
9 .Divide 3 litres in the ratio 7:5
10.Divide 1 cm in the ratio 2:3
11.Divide 70 in the ratio 60% to 40%
12.Divide 1 hour in the ratio 20% to 80%
13 .Express the ratio 3:17 as percentages.
14 .Express the ratio 9:31 as percentages.

Answers

2. 144/1:2 is 144/ ½ = 144 x 2/1 = 288

Anyone know this answer for 8?

Answers

The answer should be D

Question 3
In the triangle below, what is the side opposite to

Answers

Answer:

In the given diagram the side opposite angle J is LR which is :

Option D

what is the word capacity mean

Answers

Answer:

the maximum amount that something can contain. hope this helps :)

Step-by-step explanation:

find the vertex and the x-inter of the function given below. y = x^2 + 2x + 6

Answers

Answer: Vertex = (-1, 5) x-intercepts = No real solutions

Step-by-step explanation:

Vertex = -2/2= -1

-1^2 + 2(-1) +6

1 -2 +6

-1 +6

Discrminats= 2^2 -4(1)(6)

4 -4(1)(6)

4-24

= -20 (It's a negative so there's no real solutions, meaning there's no xintercepts/R0XS)

Help me PLEASEEEE
find the the angles

Answers

You need to find x so that then you can do it and you didn’t share a answer so how are we supposed to know??

Maria has $120. She plans to purchase a shirt for herself and gifts for 6 of her
friends. She plans to spend the same amount for each gift. Which of the
following inequalities best represents the maximum amount Maria can spend on
each gift? *

DONT say the answer is on some link that’s annoying.

Answers

it’s option 4 :)
on edge

can someone help me with part A please??

Answers

Answer:

h=4cm

Step-by-step explanation:

a) volume of a cuboid= LBH

cuboid a=(3x2x8)cm³

=48cm³

cuboidb

6cmx2cmxh=48cm³

12cm²xh=48cm³

12cm²h/12cm²=48cm³/12cm²

h=4cm

8. A
out
7. Shonte has $300 in her checking account. She wants to
spond part of this money on school supplies. She wants to
heve et least $250 left in her checking account after buying
her school supplies.
rate
to le
The inequality shown can be used to find m, the amount of
money Shonte can spend on school supplies.
m + 250 $ 300.
Write and graph an inequality that represents all possible
values of m. Explain your reasoning.

Answers

Answer:

m less than or equal to 50

Step-by-step explanation:

300 minus 250 is the money that shonte is willing to spend, 50 dollars. Shonte can spend less than 50 because she wants At Least 250 dollars left. So M would be equal to or less than 50.

Can someone help me with this please? I will mark you brainliest