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vredina [299]
4 years ago
12

Evaluate 15 over k when k=3

Mathematics
1 answer:
scZoUnD [109]4 years ago
5 0

Step-by-step explanation:5

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Multiply the polynomial expressions below,
AlekseyPX

Answer:

d

Step-by-step explanation:

7 0
4 years ago
4. Find the standard from of the equation of a hyperbola whose foci are (-1,2), (5,2) and its vertices are end points of the dia
Ad libitum [116K]

The <em>standard</em> form of the equation of the hyperbola that satisfies all conditions is (x - 2)²/4 - (y - 2)²/5 = 1 .

<h3>How to find the standard equation of a hyperbola</h3>

In this problem we must determine the equation of the hyperbola in its <em>standard</em> form from the coordinates of the foci and a <em>general</em> equation of a circle. Based on the location of the foci, we see that the axis of symmetry of the hyperbola is parallel to the x-axis. Besides, the center of the hyperbola is the midpoint of the line segment with the foci as endpoints:

(h, k) = 0.5 · (- 1, 2) + 0.5 · (5, 2)

(h, k) = (2, 2)

To determine whether it is possible that the vertices are endpoints of the diameter of the circle, we proceed to modify the <em>general</em> equation of the circle into its <em>standard</em> form.

If the vertices of the hyperbola are endpoints of the diameter of the circle, then the center of the circle must be the midpoint of the line segment. By algebra we find that:

x² + y² - 4 · x - 4 · y + 4= 0​

(x² - 4 · x + 4) + (y² - 4 · y + 4) = 4

(x - 2)² + (y - 2)² = 2²

The center of the circle is the midpoint of the line segment. Now we proceed to determine the vertices of the hyperbola:

V₁(x, y) = (0, 2), V₂(x, y) = (4, 2)

And the distance from the center to any of the vertices is 2 (<em>semi-major</em> distance, a) and the semi-minor distance is:

b = √(c² - a²)

b = √(3² - 2²)

b = √5

Therefore, the <em>standard</em> form of the equation of the hyperbola that satisfies all conditions is (x - 2)²/4 - (y - 2)²/5 = 1 .

To learn more on hyperbolae: brainly.com/question/27799190

#SPJ1

5 0
2 years ago
Please help.. PREALGEBRA
Margarita [4]

The distance between two points is the absolute value of the coordinates:

d=(R,S) = |R-S|

We know that R=-8 and that the distance is 11, so we have

|-8-S| = 11

An absolute value equals 11 if its content equals 11 or -11:

-8-S = 11 \iff -S = 19 \iff S = -19

or

-8-S = -11 \iff -S = -3 \iff S = 3

6 0
3 years ago
What is the product of 4/5 x 2 3/4 written in simplest form?
UNO [17]
11/5 is the correct answer :)
4 0
3 years ago
Read 2 more answers
The solution to 12x = 36 is x =___. (Only input whole number)
pickupchik [31]
X equals 3. Because you divide 36 by 12
4 0
4 years ago
Read 2 more answers
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