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
Amiraneli [1.4K]
4 years ago
5

What is the constant of proportionality of 3y = 27x

Mathematics
1 answer:
Misha Larkins [42]4 years ago
3 0

Answer:

9

Step-by-step explanation:

3y = 27x

We want to find k  when y = kx

Divide each side by 3

3y/3 = 27x/3

y = 9x

The constant of proportionality is 9

You might be interested in
7x+y^3+7x^3+6x-3y^3-2x^3+3x
musickatia [10]

Answer:

5x^3 + 16x - 2y^3

Step-by-step explanation:

7x + y^3 + 7x^3 + 6x - 3y^3 - 2x^3 + 3x

group like terms

= 7x^3 - 2x^3 + 7x + 6x + 3x + y^3 - 3y^3

add similar items

= 5x^3 + 7x + 6x + 3x + y^3 - 3y^3

add similar items

= 5x^3 + 16x + y^3 - 3y^3

add similar items

= 5x^3 + 16x - 2y^3

8 0
3 years ago
Sin5A/SinA-cos5A/cosA=4cos2A​
irina1246 [14]

Answer:

See Explanation

Step-by-step explanation:

\frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}  = 4\cos2A \\  \\ LHS = \frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}   \\  \\  =  \frac{ \sin5A \:\cos A -  \cos5A \:  \sin A}{\sin A \:\cos A }  \\  \\  =  \frac{ \sin(5A -A )}{\sin A \:\cos A}  \\  \\ =  \frac{ \sin 4A}{\sin A \:\cos A}  \\  \\ =  \frac{ 2\sin 2A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =  \frac{ 2 \times 2\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =  \frac{ 4\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A}  \\  \\ =4\cos 2A \\  \\  = RHS \\  \\ thus \\  \\  \frac{ \sin5A}{\sin A}  -  \frac{ \cos5A}{\cos A}  = 4\cos2A \\  \\ hence \: proved

5 0
3 years ago
What do I multiple to -1 1/7 to get 1
Setler79 [48]

Answer:

-7/8

Step-by-step explanation:

-1 1/7 is in improper fraction form -8/7

-8/7x = 1

x = -7/8

7 0
3 years ago
Is this correct pls help
Lyrx [107]

Answer:

Volume of round cake pan = volume of cylinder

Volume of a cylinder = \pi r^2h (where r is the radius and h is the height)

Radius = \dfrac12 diameter ⇒ r=\dfrac72=3.5

⇒ volume of round cake pan = \pi \times 3.5^2 \times 2=24.5\pi

= 76.97 in³ (nearest hundredth)

Volume of rectangular cake pan = volume of rectangular prism

volume of rectangular prism = wlh (where w is the width, l is the length and h is the height)

⇒ volume of rectangular cake pan = 6 x 9 x 2 = 108 in³

As 108 > 76.97, the rectangular cake pan has a larger volume

4 0
2 years ago
Which choice is equivalent to the product below?<br> Square root 2 • square root 3 • square root 8
SIZIF [17.4K]
That would be simplified into

1.41 • 1.73 • 2.82 = 6.9

i don’t know what the choices are bc you didn’t put them but hopefully this does someone some good <3
7 0
3 years ago
Other questions:
  • a number is decreased by seven. then the new number multiplied by 3 to get a answer of-9 what is the orginal number
    11·1 answer
  • Adams has 2 types of rice package, rice in the first type of package costs $2 per pound and rice in the second type costs $5 per
    14·1 answer
  • Two cars started from the same point, at 10 am, traveling in the same direction at 60 and 90 mph respectively. At what time will
    5·1 answer
  • Complete the steps for solving 7 = –2x2 + 10x.
    6·1 answer
  • Please help me with this!
    13·2 answers
  • The shipping box has a length of 30 inches and a height of 6 inches. How wide should the box be to fit the 36-inch bat? Show and
    7·1 answer
  • A line passes through the point (6,-1) and is perpendicular to the line with equation -2x + 3y = -6.
    10·2 answers
  • PLEASE I don't understand how to do this, 50 Points for anyone who solves it!
    10·1 answer
  • The total profit from the Spanish club fund-raiser varies directly with the number of dinner tickets sold. If the sale of 22 tic
    9·1 answer
  • A post 8 feet tall casts a shadow 12 feet long at the same time that a flagpole casts a shadow 96 feet long, how tall is the fla
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!