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
AleksAgata [21]
2 years ago
14

Find the standard form of the equation of the parabola with a focus at (0, 2) and a directrix at y = -2.

Mathematics
1 answer:
Paul [167]2 years ago
3 0

Answer:

D. y = one divided by eightx2

Step-by-step explanation:

The standard form of the equation of the parabola with a focus at (0, 2) and a directrix at y = -2 is y = one divided by eightx2.

You might be interested in
The percentage of body fat of a random sample of 36 men aged 20 to 29 found a sample mean of 14.42. Find a 95% confidence interv
Rina8888 [55]

Answer:

14.42-1.96\frac{6.95}{\sqrt{36}}=12.150    

14.42+ 1.96\frac{6.95}{\sqrt{36}}=16.690    

So on this case the 95% confidence interval would be given by (12.150;16.690)    

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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".

\bar X=14.42 represent the sample mean

\mu population mean (variable of interest)

\sigma=6.95 represent the population standard deviation

n=36 represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

Since the Confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.025,0,1)".And we see that z_{\alpha/2}=1.96

Now we have everything in order to replace into formula (1):

14.42-1.96\frac{6.95}{\sqrt{36}}=12.150    

14.42+ 1.96\frac{6.95}{\sqrt{36}}=16.690    

So on this case the 95% confidence interval would be given by (12.150;16.690)    

5 0
3 years ago
PLS HELP I GIVE BRAINLIEST
barxatty [35]

Answer:

<h2>MN</h2>

Step-by-step explanation:

If ΔLMN ≅ ΔXYZ, then corresponding angles and corresponding segments are congruent:

∠L ≅ ∠X

∠M ≅ ∠Y

∠N ≅ ∠Z

and

LM ≅ XY

MN ≅ YZ

LN ≅ XZ

7 0
2 years ago
Read 2 more answers
Solve the equation using square roots.x2-14=-10
ElenaW [278]

Answer:

x=2

Step-by-step explanation:

x^{2} -14=-10\\

Add 14 to both sides

x^{2}=4

Square root it

x=2

8 0
3 years ago
I need help quick!Please help me!
mina [271]

Oh shucks, that's crazy man

6 0
3 years ago
It is 185 mi to fort Worth van drives 2 hours at 65 mph how far will he be from fort Worth
zhuklara [117]

Answer:

It is 185 mi to fort Worth van drives 2 hours at 65 mph how far will he be from fort Worth

Step-by-step explanation:

It is 185 mi to fort Worth van drives 2 hours at 65 mph how far will he be from fort Worth

7 0
2 years ago
Other questions:
  • (Will give Brainliest)
    5·2 answers
  • What kind of number is the sum, difference, or product of two complex<br> numbers?
    15·1 answer
  • What is the width of a rectangular prism with a length of 13 feet, volume of 11232 cubic feet, and height of 36 feet?
    14·1 answer
  • round 63,849 to the nearest ten, to the nearest hundred, to the nearest thousand,and the nearest ten thousand
    8·2 answers
  • What is the slope-intercept form of the function described by this table?
    9·1 answer
  • Marlene earns $12,800 per year. 15% is taken from her earnings for taxes. how much money is paid in taxes? how much money is lef
    7·1 answer
  • Can 72/15 be simplified? Tell me what the number is in YOUR ANSWER. Please and thank you!
    13·1 answer
  • HELP PLEASEEEEEE!!!!!!
    11·1 answer
  • Can someone look at the pic at tell me if Im doing this correctly? I got x=14 ty
    8·1 answer
  • A train leaves the station at time t=0. Traveling at a constant​ speed, the train travels kilometers in 2 hours. Is this a linea
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!