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lbvjy [14]
4 years ago
10

What formulae can be used to solve quadratic equation in two variables?​

Mathematics
1 answer:
otez555 [7]4 years ago
6 0

Answer:

the quadratic formula can be used to solve any quadratic equation of the form ax times 2 +bx+ c=0 the form ax times 2+bx+c=0 is called standard form of a quadratic equation

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Quadratic graphs, question attached<br> Please give easy to understand explanations
Lubov Fominskaja [6]

Answer:

1) x = 0, x = 1

2) x = -0.387 , x = 1.721

Step-by-step explanation:

3x² - 3x + 2 = 2

To convert this into the given graph, subtract 3 from both sides, you get

3x² - 3x - 1 = -1

You can find the x values for y = -1 to solve the given equation.

At y = -1, x = 0, 1

3x² - 3x - 1 = x + 1

To solve for this, add a straight line y = x + 1 on the same graph and look for the point of intersections

You'll see the line and the graph meet at two points:

x = -0.387 and x = 1.721

8 0
3 years ago
The diameter of this
o-na [289]

Answer:

The number of coins to make 6440 mm diameter is 230

Step-by-step explanation:

The diameter of the coin is 28mm

Number of coins to have 6440 mm will be

6440/28

= 230

8 0
3 years ago
Work out the value of angle x.
yawa3891 [41]

Answer:

one angle is 90° .

Angle x is45 because 180-90=90

90/2=45°

4 0
3 years ago
Are the product of 3/4×2/9 greater than 2/9 plz explain
adoni [48]
Less because if you multiply any number by a fraction (not mixed or improper) than it will always be less because multiplying it by 1 will keep it the same anything less than one will make the number smaller the answer of 3/4 x 2/9 is 1/6 btw
4 0
4 years ago
Read 2 more answers
I need help this too help me and thank you and thank you
valentinak56 [21]
A is (-1,0) B is (0,-3) C is line of symmetry D is (3,0) E is (2,-3) F is (1, -4)
6 0
3 years ago
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