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
QveST [7]
3 years ago
7

MATH SMARTIES I WILL GIVE BRAINLIEST PLEASE INCLUDE AN EXPLINATION MEANING THE WORK PLEASE SO THEN I CAN UNDERSTAND THE ANSWER P

LEASE AND THANK YOU PLEASE ALSO NUMBER THE QUESTIONS FOR THE ONE YOU ARE ANSWERING AND SHOWING WORK FOR PLEASE

Mathematics
1 answer:
mariarad [96]3 years ago
7 0

Answer:

8) x = 4°

9) $7176.53

10) 22

Step-by-step explanation:

8) The sum of all three interior angles of any triangle = 180°

11x + 25x + 9x = 180°

45x = 180°

divide both sides of the equation by 45:

x = 4°

9) ($6500 x 1.02) = 6630 x 1.02 = 6762.60 x1.02 = 6897.85 x 1.02 = 7035.81 x 1.02 = 7176.53

10) (2/5)(55) =110/5 = 22

You might be interested in
Jasmine is a receptionist at a doctor's office she books 86 appointments each day four out of every 24 appointments are canceled
bonufazy [111]

Answer:

3.07

Step-by-step explanation:

(86.0/(4.0+24.0))

5 0
3 years ago
Divide.<br>(3x4 - 3x2 - 6x - 10) = (x - 2)​
alekssr [168]

Answer:

3x^3 + 6x^2 + 15x + 36 + 62 / 3x^4 +3x^2 +6x + 10

Step-by-step explanation:

Use Syenthetic Division

4 0
2 years ago
What phrases describes the expression of 16-y​
Jlenok [28]

<em>What phrases describes the expression of 16-y​</em>

<em>Answer: -9</em>

<em></em>

<em>Hope this helps~ </em>

6 0
3 years ago
What does this equal?
anzhelika [568]
It should be about 22.55.
4 0
3 years ago
A small town has 2000 families. The average number of children per family is mu = 2.5, with a standard deviation sigma = 1.7. A
Nikitich [7]

Answer:

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

6 0
3 years ago
Other questions:
  • Chin canned a number of quart jars and a number of pint jars of tamoatoes from his garden a pint is 16 ounces and a quart us 32
    8·2 answers
  • Jeremy enlarged a picture. The length of the original picture is 8cm ant the width is 5cm. The length of the enlarged picture is
    8·1 answer
  • A medium-sized has 70 calories. this is 10 calories less than 1/4 of the calories in an Old Westie Chocolate Bar. We need to fin
    12·1 answer
  • Match the numbers in standard notation with the corresponding numbers in scientific notation.
    7·1 answer
  • Wang Yong owes the bank \$8500$8500dollar sign, 8500. To repay the debt, he paid a fixed amount back to the bank each month. Aft
    6·2 answers
  • Will give brainliest if correct! <br> Determine the slope of the following
    12·1 answer
  • Can someone explain?​
    6·1 answer
  • Which is equal to the cosine of
    9·1 answer
  • A.(x, y) (x -1, y + 4)
    9·2 answers
  • When 36x^4 + 12x^8 is divided by 12x^4, the result is
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!