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3 years ago

For the equation, complete the solution. 8x + y = −7 (x, y) = , 1

Mathematics

1 answer:

butalik [34]3 years ago

7 0

Answer:

(x, y) = (-1, 1)

Step-by-step explanation:

8x + y = −7

for y = 1

8x + 1 = -7

subtract 1 from boh sides

8x = -8

divide bot sides by 8

x = -1

(x, y) = (-1, 1)

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Simplify. Write the expression using only positive exponents.

Nataly [62]

Answer:

w^3 × 1/w^9

I'm pretty sure that's the answer

3 0

3 years ago

Flights arriving to DTW might be national or international. Assume that one out of every five national flights is followed by an

Dvinal [7]

Answer:

1/15

Step-by-step explanation:

Given

1 out of every 5 national flight is followed by an international flight.

p = 1/5

q = 1 - p

q = 1 - 1/5

q = 4/5

π0 = 0.25

We want to determine

p:the fraction of international flights that are followed by a national flight.

Let X = 0

If the nth flight is national

Let X = 1

if the flight is international

This gives rise to a two state Markov chain with transition probability as follows

P = (4/5. 1/5. p. 1-p)

The long run proportion are the below solution gotten from the Markov chain above

π0 = 4/5π0 + pπ1 ----- 1

π1 = 1/5π0 + (1 - p)π1---- 2

π0 + π1 = 1 -----------. 3

Solving the above equations,

We have

Substitute 0.25 for π0 in (3)

0.25 + π1 = 1

π1 = 1 - 0.25

π1 = 0.75

Solving 1 and 3

Substitute 0.75 for π1 and 0.25 for π0 in (1)

0.25 = 4/5 * 0.25 + 0.75p

0.25 = 0.2 + 0.75p

0.75p = 0.25 - 0.2

0.75p = 0.05

p = 0.05/0.75

P = 1/15 or 0.0667(6.67%)

So, one out of every 15 international flights is followed by a national flight (or 6.66 percent)

3 0

3 years ago

How many rectangular prisms can you make with 16 cubes

Helga [31]

You can make 4rectangular prisms with 16 cubes

6 0

3 years ago

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Helppp i’ll give brainliest

romanna [79]

Answer:

6 x 10^-4 (B)

Step-by-step explanation:

It is the greater number.

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2 years ago

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PLEASE HELLPPPP Ms. Rudolph randomly selects one student from a group of students.

Yakvenalex [24]

Using it's concept, it is found that the probability that the selected student is wearing a black shirt is given by:

$p = \frac{n}{n + 15}$

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

In this problem, we have that out of n + 6 + 9 = n + 15 students, n are wearing black shirts, hence the probability is given by:

$p = \frac{n}{n + 15}$

More can be learned about probabilities at brainly.com/question/14398287

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4 0

1 year ago