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
yawa3891 [41]
3 years ago
6

Rewrite y=x^2+6x+2 in vertex form​

Mathematics
1 answer:
Greeley [361]3 years ago
5 0

Answer:(x+3) 2−7

Step-by-step explanation:

You might be interested in
Given the geometric sequence where a1 = 4 and the common ratio is 3, what is the domain for n?
svlad2 [7]

Answer:

The correct option is A.

Step-by-step explanation:

According to statement a1 = 4 and r = 3. This shows that r is greater than 1.

If r is greater than 1 than it includes integers greater than 1 or equal to 1. It does not include all the real numbers because real numbers include negative numbers also.

If starting value is 4,if we put n=0, then we get 4, but if we put a negative value than we would get a number which is not a part of our sequence. Thus the correct option is All integers where n ≥ 1....

5 0
2 years ago
g If a random sample of 18 deliveries was selected instead and the standard deviation of these delivery times was found to be 9.
lana [24]

Answer:

We can use the z score formula given by:

z= \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

If we use this formula we got:

z=\frac{21-20}{\frac{9.31}{\sqrt{18}}}= 0.456

z=\frac{25-20}{\frac{9.31}{\sqrt{18}}}= 2.279

And using a calculator, excel or the normal standard table and we have that:

P(0.456

Step-by-step explanation:

We assume this previous info:  It is known that the amounts of time required for room-service delivery at a certain Marriott Hotel are Normally distributed with the average delivery time of 20 minutes.

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 delivery times of a population, and for this case we know the distribution for X is given by:

X \sim N(20,9.31)  

Where \mu=20 and \sigma=9.31

Since the distribution for X is normal then the distribution for the sample mean \bar X is given by:

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

And we can use the z score formula given by:

z= \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

If we use this formula we got:

z=\frac{21-20}{\frac{9.31}{\sqrt{18}}}= 0.456

z=\frac{25-20}{\frac{9.31}{\sqrt{18}}}= 2.279

And using a calculator, excel or the normal standard table and we have that:

P(0.456

6 0
3 years ago
If X and Y are supplementary angles then is y acute
xxMikexx [17]
Supplementay means adds to 180
x and y could be 100 and 80
x and y could be 1 and 179

acute means that it is less than 90


since we are not told what x or y is, y could or could not be acute
4 0
3 years ago
Find the volume of the<br> rectangular prism.<br> 2 cm<br> 1<br> 8 cm<br> 5 cm
Leto [7]
Volume is length x width x height.
So, 2x8x5= 80 cubic centimeters
7 0
3 years ago
The question says: Paula started reading a book and red 1/12 of the book on the first day. the next day, she read 1/3 of the boo
tester [92]

Answer:

Step-by-step explanation:

ℎ

\frac{5}{12}

ℎ ℎ

\\  \frac{1}{12}  +  \frac{1}{3}  =  \frac{5}{12}

4 0
2 years ago
Other questions:
  • i need help with this questions asap please. A grocery clerk is making a display of oranges. The numbers of oranges in the layer
    14·1 answer
  • What multiplies to 6 but adds to 17
    14·2 answers
  • The radius of a circle is 142 yards what is the circle circumference use 3.14 answer
    10·1 answer
  • The original value of an investment is $1400, and the value increases by 9%each year. Write am exponential growth function to mo
    10·1 answer
  • A box contains 3 bags of corn chips, 3 bags of potato chips, 3 bags of peanuts, and 3 bags of pretzels. One bag is chosen at ran
    8·1 answer
  • What are the excluded values of the function? y= 5/6x-72​
    14·2 answers
  • find the outer perimeter of this figure. Round your answer to the nearest hundredth. Use 3.14 to approximate π.​
    14·1 answer
  • Assume that 75 was the mean test score on an exam, with a standard deviation of 4 points.
    15·1 answer
  • I need help please I don’t know what to it is due today
    7·2 answers
  • Monte carlo simulation generates many outcomes that are organized into a frequency distribution.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!