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Vlad [161]
3 years ago
9

PLEASE help!! BRAINLIEST to correct answer!!

Mathematics
1 answer:
katrin [286]3 years ago
3 0

The general equation for a circle is:

(x-h)^2+(y-k)^2=r^2

Where the center is (h,k) and the radius is r.

The equation we are given is:

(x-2)^2+(y+3)^2=80

From this, the center is (2,-3), and the radius is \sqrt{80}, or 4\sqrt{5}.

Let me know if you have any questions, thanks!

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Complete the proof proving YUZ~VWZ
iVinArrow [24]

Answer:

1. ΔXYZ is a right Δ with altitude YU.

Given

2. ΔXYZ ~ ΔYUZ

Right Triangle Altitude Similarity Theorem

3. VW || XY

Given

4. ∠VWZ ≅ ∠XYZ

Corresponding angles

5. ∠Z ≅ ∠Z

Reflexive property of congruence

6. ΔXYZ ~ ΔVWZ

AA Similarity postulate

7. ΔYUZ ~ ΔVWZ

Transitive property of similar triangles

Step-by-step explanation:

The first statement is given in the problem.  Since we know the altitude of a right triangle, we can use the Right Triangle Altitude Similarity Theorem to say that the triangles formed by the altitude are similar to each other and the original triangle.

Next, we are given in the problem statement that the lines VW and XY are parallel.  Therefore, ∠VWZ and ∠XYZ are corresponding angles, which makes them congruent.  And since ∠Z is equal to itself (by reflexive property), we can use AA similarity to say ΔXYZ and ΔVWZ are similar.

Finally, combining statements 2 and 6, we can use transitive property to say that ΔYUZ and ΔVWZ are similar.

4 0
3 years ago
Hi can someone answer this question please thank you
Zielflug [23.3K]

Answer:

25

Step-by-step explanation:

5:20  

We want to get the second number to 100

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x is 25

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Answer:

...

Step-by-step explanation:

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what's the length of one leg of a right triangle if the length of the hypotenuse is 25 units and the length of the other leg is
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Answer:

I don't really know whats going on in the picture but here is how you solve absolute value inequalities

Step-by-step explanation:

Step 1: Isolate the absolute value expression.

Step2: Set the quantity inside the absolute value notation equal to + and - the           quantity on the other side of the equation.

Step 3: Solve for the unknown in both equations.

Step 4: Check your answer analytically or graphically.

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