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
Arlecino [84]
3 years ago
15

Please need help thank you so much

Mathematics
1 answer:
sineoko [7]3 years ago
8 0
D. And trapezoid is not a quadrilateral.
You might be interested in
Asap
adoni [48]
Lower Quartile-21
Upper Quartile-52
Interquartile Range- 31

Hope this helps !!
3 0
3 years ago
Read 2 more answers
A consumer survey indicates that the average household spendsμ= $185on groceries each week. The distribution of spending amounts
Vitek1552 [10]

Answer:

P(X>200)=P(\frac{X-\mu}{\sigma}>\frac{200-\mu}{\sigma})=P(Z>\frac{200-185}{25})=P(Z>0.6)

And we can find this probability using the complement rule and with the normal standard table or excel:

P(Z>0.6)=1-P(z

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".  

Solution to the problem

Let X the random variable that represent the average household spent of a population, and for this case we know the distribution for X is given by:

X \sim N(185,25)  

Where \mu=185 and \sigma=25

We are interested on this probability

P(X>200)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X>200)=P(\frac{X-\mu}{\sigma}>\frac{200-\mu}{\sigma})=P(Z>\frac{200-185}{25})=P(Z>0.6)

And we can find this probability using the complement rule and with the normal standard table or excel:

P(Z>0.6)=1-P(z

7 0
3 years ago
Does the data in the table represent a direct variation or inverse variation? Write an equation to model the data in the table.
GREYUIT [131]

2*10 =20

4*5 =20

8 *5/2 = 20

answer is B inverse variation, xy = 20

5 0
3 years ago
Read 2 more answers
The polynomial of degree 3, P(x), has a root of multiplicity 2 at x = 3 and a root of multiplicity 1 at x = – 3. The y-intercer
grigory [225]

9514 1404 393

Answer:

  P(x) = -1/2(x -3)²(x +3)

Step-by-step explanation:

When q is a root of the polynomial, (x-q) is a factor. This polynomial will be ...

  P(x) = a(x -3)²(x +3)

For x=0, the y-intercept will be ...

  P(0) = 27a = -13.5

Then the value of a is ...

  a = -13.5/27 = -1/2

The formula for P(x) is ...

  P(x) = -1/2(x -3)²(x +3) . . . . . . factored form

  P(x) = -0.5x³ +1.5x² +4.5x -13.5 . . . . standard form

6 0
2 years ago
It took kelly 3 5/7 hours to fly from city A to City B, then it took her another 7 3/5 hours to fly from city B to City C. Kelly
saul85 [17]
Kelly flew a total of 11 11/35 hours
4 0
3 years ago
Other questions:
  • Please help !!!! Joe runs 8.25 times around a track in 1,119.803 seconds. If one lap around the track is 402.3 meters, which is
    15·2 answers
  • Triangle END is reflected across the line y = x using the rule (x, y) → (y, x) to create triangle E′N′D′. If a line segment is d
    15·1 answer
  • A dog is 3 and one half
    6·1 answer
  • Please help! Will give 20 points and a brainliest!
    8·1 answer
  • Order the numbers from least to greatest.<br><br> −34, 0.5, 23,−73, 1.2
    12·2 answers
  • Round to the nearest thousand and then add the rounded numbers. <br><br> 8794<br> +312
    11·1 answer
  • Write the exponential function for each table of values. Remember the function y = a(b)*
    6·1 answer
  • Please help if possible due in 20 minutes ❤️❤️<br><br> f(x) = x2. What is g(x)?
    12·1 answer
  • Please I need help with this ASAP
    11·1 answer
  • _____ square feet what is the answer?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!