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balandron [24]
4 years ago
8

Prove using coordinate geometry. Prove that the points (0,0), (4,0), (4, 4) and (0, 4) create a rhombus and then show that the m

idpoints of the sides of a rhombus determine a rectangle.
Mathematics
1 answer:
BaLLatris [955]4 years ago
5 0

Answer:

IDK

Step-by-step explanation:

IDK

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Which of the following graphs is described by the function below ?
const2013 [10]

Answer:

The point of interception of the graph and x axis are -2.366 and -0.634.

The only graph that satisfy this conditions is Graph A

Step-by-step explanation:

Given the equation;

y = 2x^2 + 6x + 3\\

at y = 0

2x^2 + 6x + 3=0\\

the roots of the quadratic equation (at y =0) can be calculated using the quadratic formula;

x = \frac{-b\pm \sqrt{b^2 -4ac}}{2a}

Using the quadratic equation to solve for the roots;

x = \frac{-6\pm \sqrt{6^2 -4*2*3}}{2*2}\\x = \frac{-6\pm \sqrt{36 - 24}}{4}\\x = \frac{-6\pm \sqrt{12}}{4}\\so, we have \\x = -2.366\\or\\x = -0.634\\

Therefore, the point of interception of the graph and x axis are -2.366 and -0.634.

The only graph that satisfy this conditions is Graph A

4 0
4 years ago
Factor: x2 - 11x + 30
Nonamiya [84]

Ask which two numbers add up to -11 and multiply to 30?

That would be; -6 and -5

Rewrite the expression using what you have above;

<u>(x - 6)(x - 5)</u>

8 0
3 years ago
Read 2 more answers
What are the solutions of the equation 22 – 42 +5= 0 ?
lara [203]

Answer:

22-42+5 is -15 so basically -15 i not equal to 0

Step-by-step explanation:

5 0
3 years ago
In a physics laboratory experiment, a coil with 200 turns en-closing an area of 12 cm2 is rotated in 0.040 s from a position whe
Alla [95]

Answer: (a) Magnetic flux before rotation is 7.2 × 10^-8 Wb and magnetic flux after rotation is 0

(b) The average emf induced in the coil is 3.6×10^-4 V

Step-by-step explanation:

Here is the complete question:

In a physics laboratory experiment, a coil with 200 turns en-closing an area of 12 cm2 is rotated in 0.040 s from a position where its plane is perpendicular to the earth’s magnetic field to a position where its plane is parallel to the field. The earth’s magnetic field at the lab location is 6.0×10^−5T. (a) What is the total magnetic flux through the coil before it is rotated? After it is rotated? (b) What is the average emf induced in the coil?

Step-by-step explanation: Please see the attachments below

7 0
3 years ago
Solve 77 = -7x using one step equations
fgiga [73]

Answer:

x=-11

Step-by-step explanation:

Divide both sides by -7, and you get -11

4 0
3 years ago
Read 2 more answers
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