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Lunna [17]
3 years ago
11

Which of the following are necessary

Mathematics
1 answer:
Travka [436]3 years ago
4 0

Step-by-step explanation:

B) opposite sides are congruent !!!!!!

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Write the equation of a circle for which the endpoints of a diameter are (-2,-2) and (4,-10)
Maurinko [17]

Answer:

Therefore the required Equation of Circle

x^{2}+y^{2}-2x+12y+12=0

Step-by-step explanation:

Given:

End point of Diameter be

point A( x₁ , y₁) ≡ ( -2 ,-2 )

point B( x₂ , y₂) ≡ ( 4 , -10 )

To Find:

Equation of a circle =?

Solution:

When end points of the Diameter are A( x₁ , y₁) , B( x₂ , y₂). then the Equation of Circle is given as

(x-x_{1})(x-x_{2})+(y-y_{1})(y-y_{2})=0

Substituting the end point are

(x-(-2))(x-4)+(y-(-2))(y-(-10))=0\\(x+2))(x-4)+(y+2))(y+10))=0\\

Applying Distributive Property we get

x^{2} -2x-8+y^{2}+12y+20 =0\\\\x^{2}+y^{2}-2x+12y+12=0

Therefore the required Equation of Circle

x^{2}+y^{2}-2x+12y+12=0

6 0
3 years ago
A data set contains an independent and a dependent variable. Which must be true of the data set if a linear function can be used
ycow [4]

The set must have a constant additive rate of change.

Answer: Option A.

<u>Explanation:</u>

A function has an additive rate of change if there is a consistent distinction between any two successive information and yield esteems. From the primary table we can watch a consistent distinction of - 6 among the y-values and a steady contrast of 2 among the x-values.

A linear function has a consistent additive rate of change, while a nonlinear capacity doesn't. For a table of qualities to be direct, the needy variable must have a steady pace of progress as the autonomous variable increments by 1.

8 0
3 years ago
Read 2 more answers
What is the area of the figure? will give brainliest to correct answer.
sesenic [268]

Answer: 196.5

Step-by-step explanation:

To get the answer you have to break the shape into different shapes and you find the area of those shapes then you add all of the areas together. :)

7 0
3 years ago
Solve using the quadratic formula for <br> -7d^2+2d+9=0
Fynjy0 [20]
20 that is the answer

5 0
3 years ago
I need a lot of help with this one! Thank you!
lozanna [386]
1) -9
2) -8
3) 14.5
4) 6

sorry if any of that is wrong :)
4 0
3 years ago
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