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SVETLANKA909090 [29]
2 years ago
12

Which lines must be parallel?

Mathematics
2 answers:
borishaifa [10]2 years ago
7 0
R and s have to be parallel
Gnom [1K]2 years ago
3 0

Answer:

The answer is option A) <em>r</em><em> </em>and <em>s</em>

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Which linear inequality is represented by the graph?
laiz [17]
<h2>Answer</h2>

y\leq \frac{1}{2} x+3

<h2>Explanation </h2>

First we are going to find the equation of the solid line passing trough the points (0, 3) and (2, 4).

Using the slope formula:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

m=\frac{4-3}{2-0}

m=\frac{1}{2}

Now we can use the point slope formula to complete the line equation:

y-y_{1}=m(x-x_{1})

y-3=\frac{1}{2} (x-0)

y-3=\frac{1}{2}x

y=\frac{1}{2}x+3

Since the shaded region is bellow the line y=\frac{1}{2}x+3, the inequality represented in the graph is y\leq \frac{1}{2} x+3.

5 0
3 years ago
Read 2 more answers
Two number cubes are rolled for two separate events: 
MatroZZZ [7]

Let us first make the sample space for the event A. The Sample Space will be:

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5)

(5,1) (5,2) (5,3) (5,4)

(6,1) (6,2) (6,3)

As can be clearly seen the Sample Space for the event A has 30 elements in it.

Now, it is given in the question that the event A has already occurred and we need to find the probability of the event B occurring <u><em>given that the event A has already occurred.</em></u>

Now, as we can see, from the sample space, only 11 events out of the 30 are the events of interest to us. This is shown in bold below:

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5)

(5,1) (5,2) (5,3) (5,4)

(6,1) (6,2) (6,3)

Thus, the probability that the event B occurs given that the event A has already occurred is:

P(B|A)=\frac{11}{30}\approx0.367

In percentage the required probability is 36.7% approximately.

3 0
3 years ago
A palindrome is a string whose reversal is identical to the string. How many bit strings of length n are palindromes?
alisha [4.7K]

Answer:

The number of  palindromes is  

      2^{\frac{n}{2} } when n is even and

      2^{\frac{n +1}{2}  } when n is odd

Step-by-step explanation:

From the question we are told that

    The  length of the string is  n

Generally palindrome is evaluated by considering the first part of a string

  When the the length of the string is an even number then

it means that the first part of the string is \frac{n}{2}

Hence the number of  bit strings of length n that are  palindromes is evaluated as

       p(n_{even }) =  2^{\frac{n}{2} }

But When the the length of the string is an odd number then

it means that the first part of the string is \frac{n-1}{2}

Hence the number of  bit strings of length n that are  palindromes is evaluated as

       p(n_{odd }) =2^{\frac{n -1}{2} +1 } = 2^{\frac{n +1}{2}  }

Generally each bit could be either 0 or  1

Hence the number of  palindromes is  

      2^{\frac{n}{2} } when n is even and

      2^{\frac{n +1}{2}  }  when n is odd

           

4 0
3 years ago
Pls help me plssssssssssss
natka813 [3]

Answer:

hi

Step-by-step explanation:

the aswer is d

8 0
3 years ago
What can be concluded about the line represented in the table? Check all that apply.
motikmotik

The slope is 2.

The slope is 1/2.

The y intercept is 4.

The y intercept is 8

The points (-2,-5) and (8,0) are also on the line

The points (-5,-2) and (1,10) are also in the line.

6 0
3 years ago
Read 2 more answers
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