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
jenyasd209 [6]
2 years ago
7

Help please! Could you explain it too?

Mathematics
1 answer:
Olegator [25]2 years ago
8 0

Answer:

a. Not proportional

b. Proportional;

k = ⅞

Step-by-step explanation:

A proportional relationship is usually represented in the format, y = kx. k here represents constant of proportionality. This shows that x and y are directly proportional.

a. y = -2x + 9 is not a proportional equation.

b. y = ⅞x is a proportional equation.

Constant of proportionality: k = ⅞

You might be interested in
Will works 7 hours a day, 6 days a week.
exis [7]
A day
= £9.20x7
= £64.40

6 days
£64.40x6= £386.40

The wages he has after he shared it with his mom
£386.40/7x5
= 55.20x5
= £276

£1932/£276= 7

It will take him 7 weeks to afford a car worth £1932.
6 0
2 years ago
Hello there!
djyliett [7]

2. f(x) = x - 2x² - 5 + 10x

=-2x² + 8x - 5

f'(x)= -4x + 8

4. y = 100(45x - 30 - 3x³ + 2x²)

= 100(-3x³ + 2x² + 45x -30)

= -300x³ + 200x² + 4500x - 3000

y' = -900x² + 400x + 4500

5 0
3 years ago
3y-3y+4x please help
yulyashka [42]

Answer:4x

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Answer the question below anything will help plssss
vekshin1
C.) Add 5 more drops of blue food coloring and 1/2 teaspoon more of distilled vinegar
6 0
2 years ago
Read 2 more answers
I have min left pls pls pls pls help me with this i beg you PLLSSSSS
kramer

Answer:

its 2/7 for the day and 1/12 for the month

Step-by-step explanation:

the probability of picking both of them is 2%

4 0
2 years ago
Other questions:
  • Regular dodecahedron with s= 2 times the square root of three and a = 2.4
    7·1 answer
  • 10(1+3x)=-20 and -5x-8(1+7x)=-8 <br> With steps
    15·1 answer
  • Help ASAP PLZ <br> Find the equation for this graph
    15·1 answer
  • Am I correct??????????
    15·2 answers
  • What is the volume of this container
    9·2 answers
  • –3x + 1 + 10x = x + 4
    12·2 answers
  • -6+2 what is the answer
    9·2 answers
  • Please help me (please dont send links)
    12·1 answer
  • Bob built birdhouses to sell at the craft fair for $8.00 each. He had to spend $40 for materials . Which inequality represents t
    9·1 answer
  • Advanced Trigonometry, pls help me answer this!​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!