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
expeople1 [14]
3 years ago
11

the record for the longest migration is held by the arts tern, which flies a round trip that can be as long as 20,000 miles per

year , from the arctic to the antarctic and back. if the birds flies an average of 25 miles per hour and an average of 12 hours per day, how many days would it take for a one-way flight
Mathematics
1 answer:
attashe74 [19]3 years ago
6 0

Answer:

<u>It will take an arctic tern 33.33 days or 33 days and 4 hours (rounded to the next hour) to cover a one-way flight of 10,000 miles</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Length of a round trip flight of an arctic tern = 20,000 miles ⇒ one-way flight = 10,000 miles

Miles per hour = 25

Hours of flight per day = 12

2. If the birds flies an average of 25 miles per hour and an average of 12 hours per day, how many days would it take for a one-way flight?

Let's calculate the number of miles per day, this way:

Miles per day = Miles per hour * Hours of flight per day

Miles per day = 25 * 12

Miles per day = 300

Now we calculate the number of days to cover 10,000 miles, a one-way flight from the Arctic to the Antarctic, as follows:

Number of days to cover 10,000 miles = 10,000/Miles per day

Number of days to cover 10,000 miles = 10,000/300

Number of days to cover 10,000 miles = 33.33

<u>It will take an arctic tern 33.33 days or 33 days and 4 hours (rounded to the next hour) to cover a one-way flight of 10,000 miles</u>

You might be interested in
I’m giving out 25 points for the answer
harkovskaia [24]

Answer:

angle p+30=180=

=180-30=150

angle Q+55=180

=180-55=125

angle R+95=180

=180-95=85

8 0
3 years ago
In the morning before school, Janine spend 1/10 hour making the bed,1/5 hour getting dressed and 1/2 hour eating breakfast. What
padilas [110]

Answer:

4/5 hour . . . . 48 minutes

Step-by-step explanation:

In hours, the total time is ...

... 1/10 + 1/5 + 1/2 = 1/10 + 2/10 + 5/10

... = (1+2+5)/10 = 8/10

... = 4/5

____

You can have a calculator add these numbers for you. Most will report the result as a decimal. There are fraction calculators on-line, if your graphing calculator does not have a fraction display mode.

If you want minutes, multiply the fraction (or decimal) by 60 minutes.

7 0
3 years ago
Data were collected over a 10-year timespan from a sample of penguins that were randomly given either metal or electronic tags.
taurus [48]

Question:

Data were collected over a 10-year timespan from a sample of 100 penguins that were randomly given either metal or electronic tags. One variable examined is the length of foraging trips. Longer foraging trips can jeopardize both breeding success and survival of chicks waiting for food. Mean length of 344 foraging trips was 12.70 days for metal-tagged penguins. Mean length of 512 foraging trips was 11.60 days for electronic-tagged penguins. An estimate of the standard error for this difference of means is SE=0.283.

a) We will address the question of whether foraging trips are longer on average among metal-tagged penguins than among electronic-tagged penguins. State hypotheses in terms of two means.

b. Calculate the sample statistic xM - xE

c. Calculate a t-test statistic, using the given estimate of SE.

d. What are the correct (conservative) degrees of freedom for a t-distribution for this test?

e. Use t-distribution methods to find the p-value and draw a rough curve with appropriate shaded region. You may give either a precise p-value from software or bounds on a p-value from Table A.

f. State the conclusion of the test in context, using nontechnical language.

Answer:

See explanation below

Step-by-step explanation:

a)  The null and alternative hypotheses are:

H0 : uM - uE = 0

H1 : uM - uE > 0

b) Calculating the sample statistic,

xM-xE, we have:

Given xM = 12.70 days

xE = 11.60 days

xM - xE = 12.70 - 11.60 = 1.10 days

Therefore sample statistic = 1.10

c) Calculating the test statistic, using the given estimate of SE, we have:

Given standard error, SE = 0.283

\frac{xM - xE}{SE} = \frac{12.70 - 11.60}{0.283} = 3.89

Therefore, t test = 3.89

d) The correct degrees of freedom.

We have:

Min(n_M-1, n_E-1 ) = Min(344-1, 512-1) = Min(343, 511)

df = 343

e) p-value:

Pvalue = P(Z > 3.89) = 0.00000602

Since p value is less than significance level of 0.05, we reject null hypothesis H0.

f) Conclusion:

There is enough evidence to conclude that foraging trips are longer on average among metal-tagged penguins than among electronic-tagged penguins.

7 0
3 years ago
Find the measure of the missing angles.<br> 1304
erastova [34]

Answer:

wheres the picture?

Step-by-step explanation:

ijsjeke

6 0
3 years ago
50% of trick or treaters dressed up as a ghosts.
cricket20 [7]

Answer:

66

Step-by-step explanation:

50% = 1/2

33 x 2 = 66

4 0
4 years ago
Other questions:
  • An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in California. Suppose that
    8·1 answer
  • Tashia ate 1/3 of a pizza, and Jay ate 3/8 of the same pizza. What fraction of the pizza was eaten?
    13·1 answer
  • Helpp<br>i will mark as brainliest​
    8·2 answers
  • Please do this for me I need to finish everything else by the end of tonight and I don’t have that much time so please help me o
    8·1 answer
  • IM BEGGING PLEASE SOMEONE HELP
    7·2 answers
  • PLEASE ANSWER LAST OF MY POINTS, DUE IN 10 MINUTES
    11·1 answer
  • I need this done before 9:00
    9·1 answer
  • How do I solve this? I’m receiving steps which aren’t clear and I’m getting stuck in them.
    13·1 answer
  • 2x + 9 = 5x + 4 solve for x plsssss
    7·2 answers
  • Need with reducing fractions you don’t have to show work just need the answers. PLEASE NEED ASAP
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!