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
zzz [600]
2 years ago
12

A certain bacteria culture grows at a rate of 18% everyday. There are currently 420 bacteria. How many bacteria will there be on

Day 8? Round the answer to the nearest whole number.
Mathematics
2 answers:
spayn [35]2 years ago
4 0

In this question, it is given that

A certain bacteria culture grows at a rate of 18% everyday. There are currently 420 bacteria.

And we have to find number of bacterias on day *.

For that we use the following formula

N(t) =N_{0} (1 +r)^t

N(0)= 420, r = 0.18 , and \ t = 8days

Substituting these values in the formula, we will get

N(8)= 420(1+0.18)^8
\\
N(8)=1579

THerefore on day 8, number of bacterias are 1579.

andreev551 [17]2 years ago
3 0

Answer:

1579

Step-by-step explanation:

I am just confirming that this answer is correct. :D

You might be interested in
PLEASE HELP! NO LINKS OR YOU WILL BE REPORTED!! WILL GIVE BRAINIEST!!!!!!!
Ket [755]
The measures of
1=105 degrees and 2=75 degrees
5 0
2 years ago
Read 2 more answers
What problem cannot be solved using the law of sines?
Radda [10]
<span>When to use the law of sines formula. You should use the law of sines when you know 2 sides and an angle and you want to find the measure of an angle opposite a known side. Or when you know 2 angles and 1 side and want to get the side opposite a known angle.</span>
3 0
3 years ago
When 258 college students are randomly selected and surveyed, it is found that 106 own a car. Find a 99% confidence interval for
juin [17]

Answer: 0.332 < p < 0.490

Step-by-step explanation:

We know that the confidence interval for population proportion is given by :-

\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

, where n= sample size

\hat{p} = sample proportion

z* = critical z-value.

As per given , we have

n= 258

Sample proportion of college students who own a car = \hat{p}=\dfrac{106}{258}\approx0.411

Critical z-value for 99% confidence interval is 2.576. (By z-table)

Therefore , the  99% confidence interval for the true proportion(p) of all college students who own a car will be :0.411\pm (2.576)\sqrt{\dfrac{0.411(1-0.411)}{258}}\\\\=0.411\pm (2.576)\sqrt{0.00093829}\\\\= 0.411\pm (2.576)(0.0306315197142)\\\\=0.411\pm 0.0789=(0.411-0.0789,\ 0.411+0.0789)\\\\=(0.3321,\ 0.4899)\approx(0.332,\ 0.490)

Hence, a 99% confidence interval for the true proportion of all college students who own a car : 0.332 < p < 0.490

3 0
2 years ago
Ion understand this one ​
Dafna1 [17]

Answer:

114

Step-by-step explanation:

\+_+/

3 0
2 years ago
Read 2 more answers
14) Solve for x:<br> 4 + 2(x + 3x) = 4 - x(2 - 3) + 2x<br> A) 0<br> B) 1<br> 2<br> D) 3
tester [92]

answer;

x=0

Step-by-step explanation:

4 + 2 (x + 3x) = 4 - x(2-3) + 2x

let remove d brackets

4 + 2x + 6x = 4 - 2x + 3x + 2x

llet collect like terms

2x + 6x - 3x -2x + 2x = 4-4

5x = 0

x = 0

3 0
2 years ago
Other questions:
  • Find the area of the lateral faces of the right triangular prism with altitude of 5 cm and base edges of length 3 cm, 4 cm, and
    7·1 answer
  • Write an equation to help sage determine how many servings of potatoes she can prepare
    5·1 answer
  • If A = James's present age, write an expression for his age seven years from now.
    10·1 answer
  • How many milliliters are in a liter?<br> 10<br> 1,000<br> 0.001<br> 0.01
    8·1 answer
  • Given that secant theta = Negative StartFraction 37 Over 12 EndFraction, what is the value of cotangent theta, for StartFraction
    11·2 answers
  • Which statement best describes the interquartile range of this set of weights? {120 lb, 115 lb, 135 lb, 105 lb, 80 lb, 160 lb} t
    10·1 answer
  • A rectangular prism has a length of 412 mm, a width of 412 mm, and a height of 6 mm. Sally has a storage container for the prism
    7·1 answer
  • Plz I need help with this test that I have due today!!!!!
    6·1 answer
  • ) Farmer Ben has only ducks and cows 24 in total. He can’t remember how many of each he
    5·1 answer
  • The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term. A fina
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!