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NikAS [45]
3 years ago
12

What is the constant of proportionality?

Mathematics
1 answer:
erastova [34]3 years ago
8 0

Answer:

To find the constant of proportionality we use the formula k= y/x so we have k=20/500 =0.04

Step-by-step explanation:

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•Please help, due tomorrow• Answer choices are given
Luda [366]

Answer:

Hii i just know the 4 and 5 one

Step-by-step explanation:

4 one is exterior

5 one is included angle

8 0
3 years ago
The equation 3x2 = 6x – 9 has two real solutions<br> True<br> O False
devlian [24]

Answer:

False

Step-by-step explanation:

We first write the equation in the form ax² + bx + c=0 which gives us:

3x² - 6x + 9=0

Given the quadratic formula,

x= [-b ±√(b²- 4ac)]/2a ,the discriminant proves whether the equation has real roots or not.

The discriminant, which is the value under the root sign, may either be positive, negative or zero.

Positive discriminant- the equation has two real roots

Negative discriminant- the equation has no real roots

Zero discriminant - The equation has two repeated roots.

In the provided equation, b²-4ac results into:

(-6)²- (4×3×9)

=36-108

= -72

The result is negative therefore the equation has no real solutions.

3 0
3 years ago
Read 2 more answers
A) Draw the graph of y= 4x - 1 on the grid
UkoKoshka [18]

9514 1404 393

Answer:

  see attached for a graph

  x = 0.5 when y = 1

Step-by-step explanation:

The graph has a y-intercept of -1, which is halfway between 0 and -2. It goes up 4 units (2 vertical grid spaces) for 1 unit to the right (1 horizontal grid space). It seems to cross y = 1 at about x = 1/2.

x = 1/2 when y = 1.

4 0
3 years ago
What is the significance of the point of intersection of a pair of simultaneous equations
Alex777 [14]

Answer:

The point of intersection gives the solution set(s) of the associated system.

Step-by-step explanation:

If we have a pair of simultaneous equations in 2 variables in x and y, then the point of intersection is the ordered pair (x,y).

This could be a unique intersection, only one point or infinitely many intersection.

This gives us the solution of the simultaneous equations.

Therefore the significance of the point of intersection of a pair of simultaneous equations is that, it gives us the solution set(s) of the associated system.

7 0
3 years ago
Which of the following are solutions to the equation below? check all that apply. 4x^2+4x+1=9
AVprozaik [17]
  • ±Answer:

X 1 = 1  ; X 2 = -2

Step-by-step explanation:

We clear the whole numbers, equal to (zero) and use the calculation formula of the quadratic function, according the image:

8 0
3 years ago
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