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Usimov [2.4K]
3 years ago
13

P = (12, 4) and M = (-8, 8)

Mathematics
1 answer:
Elena-2011 [213]3 years ago
3 0
You can look on the app Socratic to help you.
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Find the sum of the squares of the roots of 3x^2 + 4x + 12 = 0
Contact [7]

Answer:

-56/9

Step-by-step explanation:

Let p and q be the roots of the equation.

So, here's how we're gonna work it out:

{p}^{2}  +  {q}^{2}  =  \\  {p}^{2}  +  {q}^{2} +2 pq - 2pq =   \\ ( {p}^{2}  +2pq +   {q}^{2}) - 2pq =  \\  {(p + q)}^{2}  - 2pq

Vieta's formulas give us the sum and the product of the roots of a quadratic equation. Using them we obtain:

  • p + q = -b / a = - 4 / 3
  • p × q = c / a = 12 / 3 = 4

{(p + q)}^{2}  - 2pq =  \\  {( -  \frac{ 4}{3} )}^{2}  - 2 \times 4 =  \frac{16}{9 }  - 8 =  \\  \frac{16 - 72}{9}  = - \frac{56}{9}

4 0
3 years ago
The radius of a cylinder is measured in meters what unit will the surface area be measured in
iren2701 [21]
<h3>Answer: A) Square meters</h3>

Explanation:

Imagine that a parent bought a basketball for their son or daughter. If they wrapped the ball with wrapping paper, then that wrapping paper can be unwrapped to form a flat sheet. So the area of the sheet corresponds directly to the surface area. If the sheet is say 1 meter by 1 meter, then the area is 1*1 = 1 square meter. We can abbreviate "square meters" into "meter^2" or "m^2".

5 0
3 years ago
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I NEEDDD HELPPPP PLEASE ILL GIVE U BRAINLEST
zepelin [54]
-2/1 I did this is math class , we’re on this unit to,





Explanation
Saying it’s a negative number because it is pointing in a left word position, you have to go down twice and over once to find the exact point where the line crosses over a point on the graph, and there you will get -2/1
4 0
3 years ago
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Can someone help me?
12345 [234]
A= ab \frac{sin \theta}{2}
where A is area
a is side a lets say its 8cm
b is side b lets say its 7 cm
theta is 28
4 0
3 years ago
22. What is the measure of this line?
STALIN [3.7K]
Answer

Top one

Step by step explanation
3 0
4 years ago
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