1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrei [34K]
2 years ago
6

Help me please........

Mathematics
1 answer:
Kitty [74]2 years ago
8 0

Answer:

0.66666666667

Step-by-step explanation:

funny brainliest?

You might be interested in
A bacteria culture grows with constant relative growth rate. The bacteria count was 1,920 after 4 hours and 1,966,080 after 12 h
attashe74 [19]

From the calculation, the growth rate is 0.88.

<h3>What is the growth rate?</h3>

To find the relative growth rate

P1 = Poe^rt

P2 = Poe^rt

Thus;

1920 = Poe^4r ------ (1)

1966080 =Poe^12r -------(2)

P2/P1 gives;

1966080/1920 = Poe^12r/Poe^4r

1024 = e^12r/e^4r

1024 =e^8r

1024 = (e^r)^8

2^10 = (e^r)^8

e^r = 2^1.25

e^r = 2.38

r = ln(2.38)

r = 0.88

The initial size of the culture is;

1920 = Poe^(0.88 * 4)

Po = 1920/e^(0.88 * 4)

Po = 57

The  expression for the exact number of bacteria after t hours is

P(t) = 57e^0.08t

The growth (in bacteria per hour) after 9.5 hours is

P(t) = 57e^(0.88 * 9.5)

P(t) = 243544

For the number to reach 72,000;

72,000 =  57e^0.88t

72,000/57 = e^0.88t

ln 126 = ln[e^0.88t]

4.8 = 0.88t

t = 4.8/0.88

t = 5.5 hours

Learn more about exponential growth;brainly.com/question/13674608

#SPJ1

8 0
2 years ago
At the gym, Jasper was able to bench press 224 pounds, which was 7/8 of the weight that Balin was able to bench press. Which sho
11111nata11111 [884]

I’m pretty sure that the correct equation, and the value of x is

Is 7/8= x/224; x = 196 pounds

3 0
3 years ago
Read 2 more answers
F(x) = x2 + 1 g(x) = 5 – x<br><br> (f + g)(x) =
Gnom [1K]

Answer:

(f + g)(x) =  {x}^{2} - x + 6

Step-by-step explanation:

We have

f(x) =  {x}^{2}  + 1

and

g(x) = 5 - x

We want to find (f+g)(x).

By the algebraic properties of polynomial functions,

(f + g)(x) = f(x) + g(x)

(f + g)(x) =  {x}^{2}  + 1 + 5 - x

This simplifies to

(f + g)(x) =  {x}^{2}  - x + 6

We can't simplify further, hence the simplest form

4 0
3 years ago
I need help with number 4
Temka [501]
Hello!

We see that c is less than 27.5. If we have c on the right, we will use <.

Therefore, our answer is B) c<27.50

I hope this helps!
7 0
3 years ago
What number is a common multiple of five and nine?
denis-greek [22]

Answer:

45


Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
Other questions:
  • For f(x) = 9x and g(x) = x + 3, find the following functions.
    9·1 answer
  • 1. what value of x will make the equation below true 1/2(6x-10)+10=5x-13
    5·2 answers
  • Basma cuts ribbon to its onto balloons for the carnival. She has 925.6 inches of ribbon in all. If each ribbon must be 24 inches
    7·1 answer
  • A group of students at a school takes a history test. The distribution is normal with a mean of 25, and a standard deviation of
    6·1 answer
  • Solve this equation: 2s + s + 12 = 132.<br> a. s = 9<br> B. s = –30<br> C. s = 120<br> D. s = 40
    6·2 answers
  • Jim's car repair charges $50 plus $16 for every pint of oil. Sam's car repair charges $80 plus $14 for every pint of oil. At how
    15·1 answer
  • Which is not a proportion???​
    13·2 answers
  • Please answer question in picture
    13·1 answer
  • What is the scale factor of 8, 10, 14 to 12, 15, 21?
    12·1 answer
  • Please help i will give crowns
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!