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
Airida [17]
3 years ago
9

Either table C or Table D shows a proportional relationship

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
7 0

Answer:

Table D

Step-by-step explanation:

1)To verify a proportional relationship. You must simply divide "y" coordinate over "x" coordinate like this: \frac{y}{x}=k. This constant K remaining the same, displays a proportional relationship between them.

Verifying C

\frac{y}{x}=\frac{1}{2}\neq\frac{3}{4}\neq \frac{5}{6}\neq\frac{7}{8}

Not Proportional

So let's check for D

\frac{y}{x}=\frac{1}{2}=\frac{3}{6}=\frac{4}{8}=\frac{5}{10}=\frac{1}{2}\Rightarrow k=\frac{1}{2}

Proportional :)

Geometrically, when there's a proportional relationship the line passes through the Origin. Check the graph for table D.

mash [69]3 years ago
6 0
K12 if you know plzz tell me too

You might be interested in
Fill in the table using this function rule.<br> y = 10x-3<br> X<br> -<br> 0
dexar [7]

Answer:

Step-by-step explanation:

<em>y</em> = 10(- 1) - 3 = <em>- 13</em>

<em>y</em> = 10(0) - 3 = <em>- 3 </em>

<em>y</em> = 10(1)  - 3 =<em> 7 </em>

<em>y</em> = 10(5) - 3 = <em>47</em>

5 0
3 years ago
Given the parent function f(x) = 8x + 9, rewrite the function after the following transformation: reflect over the x-axis. Group
kari74 [83]

Given:

The parent function is

f(x)=8x+9

To find:

The function after the reflection over the x-axis.

Solution:

We know that, if a function f(x) reflected over x-axis to get the function g(x), then

g(x)=-f(x)

Putting f(x)=8x+9, we get

g(x)=-(8x+9)

g(x)=-8x-9

The function after the reflection over the x-axis is g(x)=-8x-9.

Therefore, the correct option is B.

3 0
3 years ago
A researcher examines 27 water samples for iron concentration. The mean iron concentration for the sample data is 0.802 cc/cubic
Delvig [45]

Answer:

90% confidence interval for the population mean iron concentration is [0.771 , 0.832].

Step-by-step explanation:

We are given that a researcher examines 27 water samples for iron concentration. The mean iron concentration for the sample data is 0.802 cc/cubic meter with a standard deviation of 0.093.

Firstly, the pivotal quantity for 90% confidence interval for the population mean iron concentration is given by;

         P.Q. = \frac{\bar X - \mu}{\frac{s}{\sqrt{n} } } ~ t_n_-_1

where, \bar X = sample mean iron concentration = 0.802 cc/cubic meter

             s = sample standard deviation = 0.093

             n = number of water samples = 27

             \mu = population mean

<em>Here for constructing 90% confidence interval we have used t statistics because we don't know about population standard deviation.</em>

So, 90% confidence interval for the population mean, \mu is ;

P(-1.706 < t_2_6 < 1.706) = 0.90  {As the critical value of t at 26 degree of

                                                 freedom are -1.706 & 1.706 with P = 5%}

P(-1.706 < \frac{\bar X - \mu}{\frac{s}{\sqrt{n} } } < 1.706) = 0.90

P( -1.706 \times {\frac{s}{\sqrt{n} } } < {\bar X - \mu} < 1.706 \times {\frac{s}{\sqrt{n} } } ) = 0.90

P( \bar X -1.706 \times {\frac{s}{\sqrt{n} } < \mu < \bar X +1.706 \times {\frac{s}{\sqrt{n} } ) = 0.90

<u>90% confidence interval for</u> \mu = [ \bar X -1.706 \times {\frac{s}{\sqrt{n} } , \bar X +1.706 \times {\frac{s}{\sqrt{n} } ]

                                                 = [ 0.802 -1.706 \times {\frac{0.093}{\sqrt{27} } , 0.802 +1.706 \times {\frac{0.093}{\sqrt{27} } ]

                                                 = [0.771 , 0.832]

Therefore, 90% confidence interval for the population mean iron concentration is [0.771 , 0.832].

4 0
3 years ago
Find the midpoint of a segment whose endpoints are (9, –7) and (–3, 5).
suter [353]
For this question, you would have to use the midpoint formula. 
(X1 +X2 / 2 , Y1 + Y2 / 2)

In other words, 
(9 + -3 / 2 , -7 +5 / 2)
(6 / 2 , -2 / 2)
(3 , -1)

Your midpoint is (3, -1)
7 0
3 years ago
How does a number line represent equivalent fractions and decimals?
kogti [31]
Dododkdldlldlflffosjdididkdkdkdkd
8 0
3 years ago
Other questions:
  • Is this answer is correct can you help me please
    15·1 answer
  • Please help me (Will give brainliest)
    10·1 answer
  • A velocity-time graph shows how<br> changes over<br> time.
    14·2 answers
  • Draw and write to explain how you can divide a rectangle into thirds in two different ways
    5·2 answers
  • The area of a rectangular city park is 24/54 square miles. The length of the park is 5/9 mile. What is the width, in miles,of th
    8·1 answer
  • Mikayla bought a coat that originally cost $200. It was on sale for 25% off. How much did she pay for the coat?
    9·2 answers
  • Suppose that on the average, 7 students enrolled in a small liberal arts college have their automobiles stolen during the semest
    12·1 answer
  • What are transformations in graphing quadratics
    5·1 answer
  • Decrease £16855.21 by 13.5% <br> Give your answer rounded to 2DP
    13·2 answers
  • PLEASE HELP LOOK AT THE PICTURE
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!