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
bogdanovich [222]
3 years ago
5

I need help plz 99 points waiting for the person that answers the question

Mathematics
2 answers:
amid [387]3 years ago
4 0

Answer:

No

Step-by-step explanation:

This is from a website so you might have to rephrase it but Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:

y=kx

for some constant k , called the constant of variation or constant of proportionality . (Some textbooks describe direct variation by saying " y varies directly as x ", " y varies proportionally as x ", or " y is directly proportional to x .")

This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.

The graph of the direct variation equation is a straight line through the origin.

ddd [48]3 years ago
3 0
Any line that crosses through the origin is a direct variation:
y = kx y = kx y = kx
The graph you're looking at isn't a straight line. We can demonstrate this by demonstrating that the slopes of two pairs of points are not equal.
m = (4 - 0) / m = y/x (2 - 0)
m = 2 m = y/x m = (9 - 0) / (3 - 0) m = 3 m = 2 m = 3
As a result, this isn't a direct version.
You might be interested in
Freshman math please help as soon as possible!
kodGreya [7K]
No, they are not correct
7 0
3 years ago
N<br> Which equation represents a proportional relationship?<br><br> Y=x+1/3<br> Y=3X+1/3<br> Y=1/3X
loris [4]

Which table shows a proportional relationship between x and y? x 2 4 5 6 y 6 12 18 21 x 1 3 4 5 y 50 150 200 250 x 3 5 7 8 y 1.5 2.5 3 4.5 x 1 2 3 6 y 1.5 3 6 9 the graph of a proportional relationship passes through (12,16) and (1,y) find y. can someone please walk me through this?

4 0
3 years ago
2x+8=y if x=6 then what is the value of y?
Norma-Jean [14]

Answer:

20

Step-by-step explanation:

If x = 6 the problem should look like this:

2 (x) + 8 = y -> place the 6 where x is.

2 (6) + 8 = y -> remember () means to multiply.

2 times 6 , add 8 , equals y

12 + 8 =y -> 12 +8 equals 20

20 = y

I hope this helps!!

7 0
2 years ago
Simplify tan9x-tan5x / 1+tan9xtan5x<br> (SHOW WORK)
Charra [1.4K]

Answer:

The simplest form is tan(4x)

Step-by-step explanation:

* Lets revise the identity of the compound angles

- tan(a+b)=\frac{tan(a)+tan(b)}{1-tan(a)tan(b)}

- tan(a-b)=\frac{tan(a)-tan(b)}{1+tan(a)tan(b)}

* Lets solve the problem

- Let 9x = 5x + 4x

∴ tan(9x) = tan(5x + 4x)

- Use the rule of the compound angle

∵ \frac{tan(9x)-tan(5x)}{1+tan(9x)tan(5x)} ⇒ (1)

∵ tan(5x+4x)=\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)} ⇒ (2)

∵ tan(9x) = equation (2)

- Substitute (2) in (1)

∴ \frac{\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)}-tan(5x)}{1+(\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)})tan(5x)}

- Multiply up and down by (1 - tan(5x)tan(4x))

∴ \frac{tan(5x)+tan(4x)-tan(5x)[1-tan(5x)tan(4x)]}{1-tan(5x)tan(4x)+tan(5x)[tan(5x)+tan(4x)]}

- Simplify up and down

∴ \frac{tan(5x)+tan(4x)-tan(5x)+tan^{2}(5x)tan(4x)}{1-tan(5x)tan(4x)+tan^{2}(5x)+tan(5x)tan(4x) }

∴ \frac{tan(4x)+tan^{2}(5x)tan(4x)}{[1+tan^{2}(5x)]}

- Take tan(4x) as a common factor up

∴ \frac{tan(4x)[1+tan^{2}(5x)]}{[1+tan^{2}(5x)]}

- Cancel [1 + tan²(5x)] up and down

∴ The answer is tan(4x)

4 0
4 years ago
Put these fractions in order from least to greatest. 3/12 1/6 2/3
Shtirlitz [24]

Answer:1

1/6 3/12 2/3

Step-by-step explanation:

3/12 = 2/6

2/3 = 4/6

1/6<2/6<2/3

3 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone please explain with answer?
    7·2 answers
  • Someone please help me !
    15·1 answer
  • Simplify (7x) - (-2x).<br><br> 5x<br> -5x<br> 9x<br> -9x
    7·2 answers
  • Point D is the incenter of triangle BCA. If m∠FDG = 136°, what is the measure of ∠FHG?
    14·2 answers
  • Need soo much help. Please somehow help with this:)
    12·2 answers
  • .Julisa's pool has an area of 196ft squared. what is the perimeter of the pool?
    15·1 answer
  • Kaitlyn has a bag with an equal number of red, yellow, and blue marbles. She makes a tree diagram to show the sample space if sh
    8·1 answer
  • The sum of three consecutive numbers (numbers in order one after another is 84. What are the three numbers? ________+ ________ +
    8·1 answer
  • Given mn, find the value of x.<br> kt<br> (3x-5)<br> m<br> →<br> (2x-25)<br> Please help me
    13·2 answers
  • Ann takes 70 paces to walk 50m. the number of paces ann takes to walk 3.5km is A.70 B.490. C.3900 D.4900​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!