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
kumpel [21]
3 years ago
6

Determine whether y varies directly with x. If so find the constant of variation k and write the equation.

Mathematics
2 answers:
KonstantinChe [14]3 years ago
8 0
There seems to be a direct relationship, as an increase an x results in an increase in y, but we can check if:
y = kx

11 = 7k, k = 1.57
13 = 8k; k = 1.62
15 = 9k; k = 1.67
17 = 10k; k = 1.70

As we can see, the variation is not constant so this is not a simple direct relation.
ludmilkaskok [199]3 years ago
6 0

Answer:

11 = 7k, k = 1.57

13 = 8k; k = 1.62

15 = 9k; k = 1.67

17 = 10k; k = 1.70

Step-by-step explanation:

There seems to be a direct relationship, as an increase an x results in an increase in y, but we can check if:

y = kx

11 = 7k, k = 1.57

13 = 8k; k = 1.62

15 = 9k; k = 1.67

17 = 10k; k = 1.70

Y does not have an direct variation with x.

You might be interested in
Write an equation of the line that passes through (−3,7) and is perpendicular to the line y=−2x−5.
Murljashka [212]

Answer:

Step-by-step explanation:

an equation is : Use the point-slope formula.

y - y_1 = m(x - x_1)    ;  m : the slope   when : x_1 = -3   and  y_1  = 7

- 2 ×m = - 1  because this line is perpendicular to the line y= -2x-5 when the slope is  -2

so : m= 1/2

an equation is : y - 7 =(1/2)(x+3)  

7 0
3 years ago
Read 2 more answers
What percent of 300 is 0.6?
Alla [95]
0.002%. Just take 0.6/300 and input into a calculator.
7 0
2 years ago
Read 2 more answers
Find the measure of the numbered angle.
Mila [183]
The angle adjacent to angle 6 is the one we need to find first.  To do this, add the measures of the intercepted arcs and divide by 2.  60 + 50 = 110, and half of that is 55.  That means that both adjacent angles to the angle 6 are 55 (vertical angles are congruent).  The measure of all the angles added together is 360 and angle 6 is vertical to the other "sideways" angle, so they are congruent as well.  360 - 55 - 55 = 250.  Split that up between angle 6 and its vertical angle to get that each of those measure 125.  Angle 6 measures 125, choice b from above.
4 0
3 years ago
Use your calculator to work out this equation
alisha [4.7K]

Answer:

2.123842852 is the first answer

for part b it'll be 2.12

hope that helps

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The area of a rectangle is 144 square centimeters. The width is 9 centimeters. Which of the following statements is true? Select
Ket [755]

Answer:

Option C and D are correct.

Step-by-step explanation:

Area of rectangle = 144 cm^2

Width of rectangle = 9 cm

Length of rectangle = ?

We know,

Area of rectangle = Length * Width

144 = Length * 9

144/9 = Length

=> length = 16 cm

Option A is incorrect as 3 times width = 3* 9 = 27 but our length = 16 cm

Option B is incorrect as length = 16 cm and not 63 cm

Option C is correct as Length < 2(Width)

=> 16 < 2(9) => 16 < 18 which is true.

Option D is correct.

Perimeter = 2(Length + Width)

Perimeter = 2(16+9)

Perimeter = 50 cm

Option E is incorrect as Length ≠ Width

6 0
3 years ago
Read 2 more answers
Other questions:
  • The staff of the Westport public library signed up 6 volunteers in the last 21 days. If the library staff continues to sign up v
    15·1 answer
  • 3(x+5) +2x=10x-5(x+1)
    8·1 answer
  • Use a calculator to find the approximate value of sin-1 (0.549)
    14·2 answers
  • Can someone quickly do this
    5·1 answer
  • I will pick BRAINLIEST.
    12·1 answer
  • Determine the standard form of the equation of the line that passes through (0,5) and (4,0)
    9·1 answer
  • Savanna is playing a game with her friends. She tells them to each pick a number, and then she directs them to: 1. Multiply thei
    9·1 answer
  • A positive real number is 2 more than another. If the sum of the squares of the two numbers is 42, find the numbers.
    10·1 answer
  • NEED HELP ASAP PLS! 13 points!
    10·1 answer
  • What is the percent change from 400 to 500?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!