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
sammy [17]
3 years ago
12

NEED HELP PLEASEEEEE

Mathematics
1 answer:
Aloiza [94]3 years ago
5 0
2x+6=x-3

if you also need the answer it's x=-9
You might be interested in
You work for a printing company.Your machine can prine 80 posters per hour. You printed 600 posters. How many hours did you work
AlexFokin [52]
The amount of hours you worked would be 7.5, you divide 600 by 80.
7 0
3 years ago
The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population o
blondinia [14]

The value of mean, standard deviation and interval from the method of tree ring dating is 1273 AD, 37 years, [1250,1296].

According to the statement

we have to find that the standard deviation, mean and the intervals from the given data.

So, According to the given data from the method of tree ring dating

The value of mean is

x-bar = (1271 + 1208 + 1229 + 1299 + 1268 + 1316 + 1275 + 1317 + 1275) / 9 = x-bar = 1273 AD

And now we find standard deviation :

s = √∑(xi - x-bar) / (N - 1)

∑(xi - x-bar)^2 = (1271 - 1273)2 + (1208 - 1273)2 + (1229 - 1273)2 + ... + (1275 - 1273)2

∑(xi - x-bar)^2 = (-2)2 + (-65)2 + (-44)2 + ... + (2)2

∑(xi - x-bar)^2 = 4 + 4225 + 1936 + 676 + 25 + 1849 + 4 1936 + 4

∑(xi - x-bar)^2 = 10,659

Now,

s^2 = 10659/8 = 1332

s = 37 years

So, standard deviation is 37 years.

We need the t-distribution table since the standard deviation is unknown.  Therefore, our degrees of freedom is 9 - 1 = 8 and the critical value is 1.860.  Set up the confidence interval for the mean:

[x-bar ± t*(s/√n)] = [1273 ± 1.860*(37/√9)]

[x-bar ± t*(s/√n)] = [1250,1296]

So, The value of mean, standard deviation and interval from the method of tree ring dating is 1273 AD, 37 years, [1250,1296].

Learn more about method of tree ring dating here

brainly.com/question/15107034

Disclaimer: This question was incomplete. Please find the full content below.

Question:

The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution.

For more data please see the image below.

#SPJ4

4 0
1 year ago
Max is 6 years older than his brother. If Max is M years old, then his brother is ____ years old.
Doss [256]
Max' brother is M-6 years old.
6 0
3 years ago
A prime polynomial cannot be written as a product of lower-degree polynomials. Which polynomial is prime? a)8x2 – 10x – 3 b)8x2
Basile [38]
As already described above, the prime polynomial is that which can no longer be factored to yield a much simpler terms. From the given choices, that which cannot be factored is letter C. 
10 0
3 years ago
Read 2 more answers
the budget for carter museum's annual party is $10,000.food accounts for 1/2of the budget, beverages for 1/4,and decorations for
TEA [102]
10,000 - (1/2 x 10,000) - (1/4 x 10,000) - (1/10 x 10,000) = 10,000 - 5,000 - 2,500 - 1,000 = 1,500

$1,500 is being spent on staffing for the party.
5 0
2 years ago
Other questions:
  • 1/3y+1/4=5/12 i need 20 character
    13·1 answer
  • 2(p + 1) = 18<br> what is p?
    14·2 answers
  • What is d, the distance between tick marks on the number line?
    11·2 answers
  • How do you do this math 18-0.4<br> in long subtraction
    14·2 answers
  • A recipe for 4 dozen cookies calls for 3/4 cup of sugar how much sugar is needed to Make 2 dozen cookies
    12·1 answer
  • Round 1133,7408 to the nearest cent as needed
    5·1 answer
  • Stephen is testing the difference in means between time it takes to travel school in a bus and time it takes to travel to school
    13·1 answer
  • What is 5% of 20= pls I really need some help on this will mark brainly if correct
    8·2 answers
  • Pls need answer ASAP
    5·1 answer
  • According to a​ poll, about 19​% of adults in a country bet on professional sports. Data indicates that 47.9​% of the adult popu
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!