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Masja [62]
3 years ago
11

Write the coordinate of G'after G(1, 2) was reflected over the line y=x.

Mathematics
2 answers:
inn [45]3 years ago
8 0

Answer:

(2,1)

Step-by-step explanation:

Vikentia [17]3 years ago
4 0

Answer:

(-1,2)

Step-by-step explanation:

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Can anyone pls help me to solve question 2 f and g and pls provide me a explanation I’m with that questions for three days
zvonat [6]

Answer:

  f)  a[n] = -(-2)^n +2^n

  g)  a[n] = (1/2)((-2)^-n +2^-n)

Step-by-step explanation:

Both of these problems are solved in the same way. The characteristic equation comes from ...

  a[n] -k²·a[n-2] = 0

Using a[n] = r^n, we have ...

  r^n -k²r^(n-2) = 0

  r^(n-2)(r² -k²) = 0

  r² -k² = 0

  r = ±k

  a[n] = p·(-k)^n +q·k^n . . . . . . for some constants p and q

We find p and q from the initial conditions.

__

f) k² = 4, so k = 2.

  a[0] = 0 = p + q

  a[1] = 4 = -2p +2q

Dividing the second equation by 2 and adding the first, we have ...

  2 = 2q

  q = 1

  p = -1

The solution is a[n] = -(-2)^n +2^n.

__

g) k² = 1/4, so k = 1/2.

  a[0] = 1 = p + q

  a[1] = 0 = -p/2 +q/2

Multiplying the first equation by 1/2 and adding the second, we get ...

  1/2 = q

  p = 1 -q = 1/2

Using k = 2^-1, we can write the solution as follows.

The solution is a[n] = (1/2)((-2)^-n +2^-n).

 

5 0
2 years ago
2.1 If 5 + 3 = 0 and < 0, evaluate (without using a calculator):
Sergeeva-Olga [200]

1. 18

2.8

3.-1

<h3>What is expression?</h3>

An expression is a set of terms combined using the operations +, – , x or ,/.

Given:

1. 22 − 1 (4)

=22- 1*4

= 22-4

= 18

2. 2 + 2 (3)

=2+2*3

=2+6

=8

3. 1 − 2

= -1

Learn more about expression here:

brainly.com/question/14083225

#SPJ1

6 0
2 years ago
What fractional part of the day do you spend sleeping if you sleep 8 hours?
fomenos

You sleep 1/3 of the day.

5 0
2 years ago
RESUELVE... A. 4X + 5X, B. -3X-2X
777dan777 [17]
I don't recognize this problem, please make sure the input is complete.
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2 years ago
Callie surveyed 40 students at her school to see how many have dogs and/or cats. She found that 40% of students who have dogs, d
Mrac [35]
It's hard to type a table into these little boxes.  Could you possibly draw the table on paper and share an image of the table here?

This is called a "contingency table" and is often associated with "dependent probability."


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