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
Ierofanga [76]
3 years ago
8

a culture started withwith 2,000 bacteria. after 6 hours, it grew to 2,200 bacteria. predict how many bacteria will be present a

fter 12 hours. round your answer to the nearest whole number.
Mathematics
1 answer:
Vilka [71]3 years ago
6 0
I think the answer is 2,400
You might be interested in
A spinner with 20 equal-sized sections has 5 red, 10 blue, 3 green, and 2 yellow sections. Ann pays $10 to spin the spinner. If
zhenek [66]

Answer:

The expected payoff for Ann is that she loses the game

Step-by-step explanation:

The expected payoff for Ann is that she loses the game, this is because only 5 out of the 20 sections allow Ann to win money, this is only 25% of the spinner. Meaning that 75% of the spinner will cause Ann to lose the game. Rolling two times increases the odds that she will lose the game. Since the greatest probability is that Ann will land on a section that causes her to lose the game, then this is the expected payoff.

6 0
3 years ago
Nia has $19.50 to ride the subway around New York. It will cost her $0.75 every time she rides. Identify the dependent variable
Firlakuza [10]

Answer:

Independent variable- subway cost

dependent variable- nias money ($19.50)

Step-by-step explanation:

3 0
3 years ago
Robert gets a lone from his bank. he agrees to borrow £6000 at a fixed annual simple interest rate of 7%. He also agrees to pay
Natali5045456 [20]

Answer:

£10200

Step-by-step explanation:

£6000x7%= £420

£420x10= £4200

£6000+£4200= £10200

4 0
3 years ago
A sample of size 126 will be drawn from a population with mean 26 and standard deviation 3. Use the TI-84 calculator.
GenaCL600 [577]

Answer:

1. The probability that x will be more than 25 is 0.6305.

2. The 55th percentile is 26.38.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean 26 and standard deviation 3.

This means that \mu = 26, \sigma = 3

1 Find the probability that x will be more than 25.

This is 1 subtracted by the p-value of Z when X = 25. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{25 - 26}{3}

Z = -0.333

Z = -0.333 has a p-value of 0.3695.

1 - 0.3695 = 0.6305.

The probability that x will be more than 25 is 0.6305.

2 Find the 55th percentile of x.

This is X when Z has a p-value of 0.55, so X when Z = 0.125.

Z = \frac{X - \mu}{\sigma}

0.125 = \frac{X - 26}{3}

X - 26 = 0.125*3

Z = 26.38

The 55th percentile is 26.38.

7 0
3 years ago
This problem has been solved!
rjkz [21]

Answer:

1. Precise

2.Both

3.Precise

5.Neither

Step-by-step explanation:

Accuracy is the closeness of a measured value to a standard value.

Precision is the closeness of two or more measurements to each other.

1.The norm is 45 sit-ups in a minute.The students did, 64, 69,65 and 67. Values are not accurate compared to standard value 45.

Values are precise

Answer--Precise

2. Average score is 89.5

  Scores are 89,93,91,87

  Values are precise i.e a difference of 2 from each score

  Values are accurate because the average score is 90 thus compared to      the known average score of 89.5 they are accurate.

Answer-Both

3. Yesterday temperature=89

   Tomorrow=88

    Next day=90

   Average =75

   Values are precise i.e. difference of ± 1°

   Values are not accurate compared to the average temperatures of 75 F

   Answer---Precise

5. The jar contained 568 pennies

   The 6 people guessed the numbers as

    735,209,390,300,1005, 689

  The values are not precise

  The values are not accurate

  Answer---Neither

5 0
3 years ago
Other questions:
  • In Mr Tarkiainens each student chooses two of the topics listed in the chart above for their papers how many different pairs can
    6·1 answer
  • What is the total amount that First Consumer Bank will receive after lending Jane $7,000 for three years at an interest rate of
    6·1 answer
  • The total weight of Morgan, Emily, and Ashley is 243 lb. Morgan is 30 lb heavier than Emily. Emily is 6 lb lighter than Ashley.
    5·1 answer
  • Every week, Mr. Kirkson uses 3/16 gallon of water to water every 1/3 square foot of his garden.
    14·1 answer
  • Steps in solving this equation plz​
    6·1 answer
  • A newspaper publisher wants to check its daily output of about 300,000 newspapers to be sure each includes a comics section. Exp
    11·2 answers
  • Choose the best graph that represents the linear equation: -2y = x + 6
    15·1 answer
  • a movie premiere had a full house at 350 film Buffs the price of the tickets were $6 for adults and $4 for underage the income f
    10·1 answer
  • A sticker costs 25 cents. How many dollars is that?
    5·2 answers
  • You are a male who has a high school diploma. You plan to attend college and earn a bachelor’s degree. When you graduate from co
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!