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3 years ago

Is it Line s,q ,or r?

Mathematics

1 answer:

Sergio [31]3 years ago

8 0

Answer:

I would say it is line Q. Because it goes down one and left one. Hope this helps

Step-by-step explanation:

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What is the slope<br> A. Undefined <br> B. 0

Contact [7]

The line is horizontal, therefore the slope is 0.

Answer=0

8 0

3 years ago

Read 2 more answers

Prove that an = 4^n + 2(-1)^nis the solution to

olga nikolaevna [1]

Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute $a_n=4^n+2(-1)^n$ in the equation $a_n=3a_{n-1}+4a_{n-2}$ the equality is true.

Let's substitute first in the right hand side:

$3a_{n-1}+4a_{n-2}=3(4^{n-1}+2(-1)^{n-1})+4(4^{n-2}+2(-1)^{n-2})$

Now we use the distributive laws. Also, note that $(-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n}$ (this also works when the power is n-2).

$=3(4^{n-1})+6(-1)^{n-1}+4(4^{n-2})+8(-1)^{n-2}$

$=3(4^{n-1})+(-1)(6)(-1)^{n}+4^{n-1}+(-1)^2(8)(-1)^{n}$

$=4(4^{n-1})-6(-1)^{n}+8(-1)^{n}=4^n+2(-1)^n=a_n$

then the sequence solves the recurrence relation.

4 0

3 years ago

Does anyone know this?

EleoNora [17]

Answer:

The most logical answer is D

Step-by-step explanation:

6 0

3 years ago

If the end points of the diameter of a circle are (9,4) and (5,2) what is the standard form equation of the circle

timurjin [86]

Answer:

(x - 7)² + (y - 3)² = 5

Step-by-step explanation:

The center (h , k) is the midpoint of two end points of diameter

h = (9 + 5) / 2 = 7

k = (4 + 2) / 2 = 3

Equation of circle: (x - h)² + (y - k)² = r²

r = (√(9 - 5)² + (4 - 2)²) / 2 = √5

Equation: (x - 7)² + (y - 3)² = 5

6 0

3 years ago

Find slope<br> I need help on this lol

irinina [24]

Step-by-step explanation:

$slope = \frac{4 - 0}{2 - 3} \\ slope = \frac{4}{ - 1} \\ slope = - 4$

4 0

3 years ago