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
Olegator [25]
3 years ago
11

Find an equation for y in terms of x

Mathematics
1 answer:
snow_tiger [21]3 years ago
3 0

Answer:

y = \frac{9}{x^2}

Step-by-step explanation:

Given y is inversely proportional to x² then the equation relating them is

y = \frac{k}{x^2} ← k is the constant of proportion

To find k use an ordered pair from the table

Using x = 3 when y = 1 , then

1 = \frac{k}{3^2} = \frac{k}{9} ( multiply both sides by 9 )

9 = k

y = \frac{9}{x^2} ← equation of proportion

You might be interested in
PLEASE HURRY :,)
mart [117]

Answer:

A. The first quadrant of a coordinate grid is drawn. The title is Cake Stand. The horizontal axis label is Number of Cupcakes, and the scale is from 0 to 8 in increments of 1. The vertical axis label is Cost in dollars, and the scale is from 0 to 32 in increments of 4. Points are plotted at the ordered pairs 1,8 and 2,12 and 3,16.

4 0
3 years ago
Read 2 more answers
A simple random sample of size nequals=200200 drivers were asked if they drive a car manufactured in a certain country. of the 2
lord [1]

Answer:

Is there supposed to be a photo

Step-by-step explanation:

8 0
4 years ago
Write this ratio as a fraction in lowest terms 40 minutes to 90 minutes​
Alex787 [66]

Answer:

your answer should be 4/9

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
Suppose the speeds of vehicles traveling on a highway are normally distributed and have a known population standard deviation of
ladessa [460]

Answer:

The margin of error for the confidence interval for the population mean with a 98% confidence level is 2.88 miles per hour.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.98}{2} = 0.01

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.01 = 0.99, so z = 2.326

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

Find the margin of error for the confidence interval for the population mean with a 98% confidence level.

M = 2.326*\frac{7}{\sqrt{32}} = 2.88

The margin of error for the confidence interval for the population mean with a 98% confidence level is 2.88 miles per hour.

5 0
3 years ago
Express 79.2% as a decimal.
Eduardwww [97]
If you want to express percentage as a decimal, you have to divide the number by 100:

 79.2/100

The correct answer to this is:
0.792
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 14/20 in its simplest form
    6·2 answers
  • 5 1/2 + 5 1/2 + 5 1/2 + 3 cm =
    15·1 answer
  • PLEASE HELP:
    14·1 answer
  • A 2-gallon jug of juice costs $18.80. What is the price per quart?<br><br> (Show work to get marked)
    13·2 answers
  • Find the degree of the monomial.
    12·1 answer
  • TIMED QUIZ HELP! For kite WXYZ, what is the measure of angle WZX ?
    5·1 answer
  • Which type of lines is shown below?
    8·1 answer
  • Please help :( I’m having troubles answering this problem
    15·1 answer
  • You and a friend go to surf taco for lunch. you order 3 soft tacos and 2 burritos and your total bill is 25. Your friend bill is
    8·1 answer
  • Answer this correctly pls i'll give ya brainliest
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!