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
marusya05 [52]
3 years ago
13

What is the solution to the system of equations that is graphed below?

Mathematics
1 answer:
iren [92.7K]3 years ago
8 0

Answer:

5 - -3..... i think

Step-by-step explanation:

You might be interested in
Express in trigonometric form PLEASE... -6+6 sqrt. 3i
Alenkinab [10]

Answer:

6sqrt2(cos(-5pie/4)+isin(-5pie/5))

Step-by-step explanation:

8 0
3 years ago
Round to the nearest whole number 486.3÷8.1
PolarNik [594]

Answer: 60.


Step-by-step explanation: After you divide you get 60.037037. And since were rounding its 60.


4 0
3 years ago
The scores on the GMAT entrance exam at an MBA program in the Central Valley of California are normally distributed with a mean
Kaylis [27]

Answer:

58.32% probability that a randomly selected application will report a GMAT score of less than 600

93.51%  probability that a sample of 50 randomly selected applications will report an average GMAT score of less than 600

98.38% probability that a sample of 100 randomly selected applications will report an average GMAT score of less than 600

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

\mu = 591, \sigma = 42

What is the probability that a randomly selected application will report a GMAT score of less than 600?

This is the pvalue of Z when X = 600. So

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

Z = \frac{600 - 591}{42}

Z = 0.21

Z = 0.21 has a pvalue of 0.5832

58.32% probability that a randomly selected application will report a GMAT score of less than 600

What is the probability that a sample of 50 randomly selected applications will report an average GMAT score of less than 600?

Now we have n = 50, s = \frac{42}{\sqrt{50}} = 5.94

This is the pvalue of Z when X = 600. So

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

Z = \frac{600 - 591}{5.94}

Z = 1.515

Z = 1.515 has a pvalue of 0.9351

93.51%  probability that a sample of 50 randomly selected applications will report an average GMAT score of less than 600

What is the probability that a sample of 100 randomly selected applications will report an average GMAT score of less than 600?

Now we have n = 50, s = \frac{42}{\sqrt{100}} = 4.2

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

Z = \frac{600 - 591}{4.2}

Z = 2.14

Z = 2.14 has a pvalue of 0.9838

98.38% probability that a sample of 100 randomly selected applications will report an average GMAT score of less than 600

8 0
3 years ago
PLEASE HELP which number line represents the solution to |x-21|<3
9966 [12]

Answer:solutions, search about Complex Numbers

Step-by-step explanation:−2||=−6

−

2

|

x

|

=

−

6

||=−6−2=3

|

x

|

=

−

6

−

2

=

3

The value inside the absolute value brackets could be positive or negative and give a positive result.

()=3

(

x

)

=

3

 OR  −()=3

−

(

x

)

=

3

=3

x

=

3

 OR  =−3

x

=

−

3

On a number line, that would translate to a number line with two dots on it, one at -3 and one at +3.

7 0
2 years ago
Read 2 more answers
Find the product.<br> 3cd^2(6cd + 14cd^2)
klasskru [66]
3cd^2(6cd + 14cd^2)
18cd^3 + 42cd^4
5 0
3 years ago
Other questions:
  • It costs 3 tickets to play a game at the fair. If you spent 21tickets on the game, which equation could you use to solve for the
    6·2 answers
  • Select all of the values of y that make the list of points a function.
    8·1 answer
  • The price of 41gram apple is 10.25 rupees.then how many rupees for 1 kg apple​
    12·1 answer
  • When conducting a paired differences test, what is the value of n? The total number of data values. The total number of data val
    12·1 answer
  • Jorge bowled 5 games.
    8·1 answer
  • Can you please help me with this question please and i will give you a Brainiest
    12·2 answers
  • HSMath easy 10 points yk the vibes
    8·1 answer
  • PLZ ANSWER FAST!!!! THE FIRST ANSWE GETS BRAINLIEST
    14·2 answers
  • HURRY WILL MARK BRAINLIEST what is the value of the output when the input is 20
    7·1 answer
  • 4&gt;x+4 I need to know the x value
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!