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
Novosadov [1.4K]
3 years ago
6

(12) Geographers use negative numbers to represent points below sea level and positive numbers for points above 1

Mathematics
2 answers:
myrzilka [38]3 years ago
5 0

Difference in elevation is 6 meters.

Sergio039 [100]3 years ago
3 0

Answer: -4

Step-by-step explanation: -5 + 1= -4

You might be interested in
A simulation was conducted using 10 fair six-sided dice, where the faces were numbered 1 through 6. respectively. All 10 dice we
kompoz [17]

Answer:

C) a sample distribution of a sample mean with n = 10  

\mu_{{\overline}{X}} = 3.5

and \sigma_{{\overline}{Y}} = 0.38

Step-by-step explanation:

Here, the random experiment is rolling 10, 6 faced (with faces numbered from 1 to 6) fair dice and recording the average of the numbers which comes up and the experiment is repeated 20 times.So, here sample size, n = 20 .

Let,

X_{ij} = The number which comes up  on the ith die on the jth trial.

∀ i = 1(1)10 and j = 1(1)20

Then,

E(X_{ij}) = \frac {1 + 2 + 3 + 4 + 5 + 6}{6}

                            = 3.5       ∀ i = 1(1)10 and j = 1(1)20

and,

E(X^{2}_{ij} = \frac {1^{2} + 2^{2} + 3^{2} + 4^{2} + 5^{2} + 6^{2}}{6}

                                = \frac {1 + 4 + 9 + 16 + 25 + 36}{6}

                                = \frac {91}{6}

                                \simeq 15.166667

so, Var(X_{ij} = (E(X^{2}_{ij} - {(E(X_{ij})}^{2})

                                    \simeq 15.166667 - 3.5^{2}

                                    = 2.91667

   and \sigma_{X_{ij}} = \sqrt {2.91667}[/tex                                            [tex]\simeq 1.7078261036

Now we get that,

 Y_{j} = \frac {\sum_{j = 1}^{20}X_{ij}}{20}

We get that Y_{j}'s are iid RV's ∀ j = 1(1)20

Let, {\overline}{Y} = \frac {\sum_{j = 1}^{20}Y_{j}}{20}

      So, we get that E({\overline}{Y}) = E(Y_{j})

                                                                 = E(X_{ij}  for any i = 1(1)10

                                                                 = 3.5

and,

       \sigma_{({\overline}{Y})} = \frac {\sigma_{Y_{j}}}{\sqrt {20}}                                             = \frac {\sigma_{X_{ij}}}{\sqrt {20}}                                             = \frac {1.7078261036}{\sqrt {20}}                                            [tex]\simeq 0.38

Hence, the option which best describes the distribution being simulated is given by,

C) a sample distribution of a sample mean with n = 10  

\mu_{{\overline}{X}} = 3.5

and \sigma_{{\overline}{Y}} = 0.38

                                   

6 0
2 years ago
PLZ HURRY IT'S URGENT!!!
mr Goodwill [35]

Answer:

25 two point shots

25 three point shots

2x+3y<100 is that the one missing the sign?

Step-by-step explanation:

25*2=50

25*3= 75

50+75= 125

2x+3y has to be over 100 points

so 2x+3y<100

8 0
2 years ago
The 7 in 72 represents how many times the value of the 7 in 78?
Grace [21]
The answer is zero times.
3 0
2 years ago
A road construction crew paves 1/5 mile every day. How much would they pave in 2 days?
Helen [10]

Answer: 0.4 miles


Step-by-step explanation:

You can use the equation y=1/5x to help you figure it out where x is the days and y is the length. y=1/5(2). y=2/5 or 0.4 miles. Please vote my answer as brainliest

7 0
3 years ago
Read 2 more answers
Which set includes rational numbers but not natural numbers?
Kryger [21]

Answer:

Answer: Natural Numbers count physical things. They can't be negative.

The third option is correct because its fractions and decimals.

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the nth term or this sequence 3 8 13 18 23
    9·2 answers
  • I need help please and thank you
    13·1 answer
  • A recipe for whole grain rolls calls for 3/4 cup of flour. The recipe makes 6 rolls .How many cups is needed for 32 Rolls?
    10·1 answer
  • Calculate the length of the bold arc
    8·1 answer
  • Are the ratios 3:6 and 2:4 equivalent
    7·1 answer
  • Acellus
    7·1 answer
  • What is the value of k in the product of powers below?<br><br> 0<br> 1<br> -3<br> -1
    11·2 answers
  • Please answer this question only if you know the answer!!! :)
    9·1 answer
  • A plane begins its takeoff at 2:00 P.M. on a 2200-mile flight. After 12.5 hours, the plane arrives at its destination. Explain w
    6·1 answer
  • Can someone help me pls and if you have a time to explain it how to do it…
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!