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2 years ago

How is subtracting polynomials similar to subtracting integers

Mathematics

2 answers:

Oduvanchick [21]2 years ago

8 0

Answer:

When subtracting integers you have to change the sign of the second integer; When subtracting polynomials you have to change the sign of each term in the second polynomia. Then follow rules for addition of integers .

Hope this helps!

IgorLugansk [536]2 years ago

7 0

When you subtract polynomials, it is kind of like subtracting integers, because in both, you subtract normally. For example, 3xy - 2xy = 1xy. You have to subtract integers when you subtract polynomials

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The graph shows the distance Kendrick walks in different lengths of time.

Vlad1618 [11]

Answer:

1) 5

2) 0.2

Step-by-step explanation:

The complete question is attached below.

The x-axis represents the time in hours and y-axis represents the distance in kilometers.

The first question asks how many kilometers, does Kendrick walk per hour. The straight line represents the distance traveled at various amounts of time.

The point marked on the graph is against time = 1 hour and Distance = 5 km. So this shows:

Kendrick walks 5 kilometers in 1 hour.

In next part, we have to find how much time Kendrick takes to walk 1 kilometer.

Since, we know that:

Kendrick walks 5 kilometers in time = 1 hour

Dividing both sides by 5, we can write:

Kendrick walks 1 kilometer in time = 1/5 hour = 0.2 hour

So, Kendrick takes 0.2 hours to walk 1 kilometer.

7 0

1 year ago

Read 2 more answers

What number would you multiply the second equation by in order to eliminate the x-terms when adding to the first equation? What

alexandr402 [8]

Answer:

1. Multiply (2) by 2 to eliminate the x-terms when adding

2. Multiply (2) by 3 to eliminate the y- term

Step-by-step explanation:

Use this system of equations to answer the questions that follow.

4x-9y = 7

-2x+ 3y= 4

what number would you multiply the second equation by in order to eliminate the x-terms when adding the first equation?

4x-9y = 7 (1)

-2x+ 3y= 4 (2)

Multiply (2) by 2 to eliminate the x-terms when adding the first equation

4x-9y = 7

-4x +6y = 8

Adding the equations

4x + (-4x) -9y + 6y = 7 + 8

4x - 4x - 3y = 15

-3y = 15

y = 15/-3

= -5

what number would you multiply the second equation by in order to eliminate the y- term when adding the second equation?

4x-9y = 7 (1)

-2x+ 3y= 4 (2)

Multiply (2) by 3 to eliminate the y- term

4x - 9y = 7

-6x + 9y = 12

Adding the equations

4x + (-6x) -9y + 9y = 7 + 12

4x - 6x = 19

-2x = 19

x = 19/-2

= -9.5

x = -9.5

6 0

1 year ago

Read 2 more answers

The flathead rail tunnel in Montana is about 7 3/4 miles long. A train travels at a speed of 3/4 mile per mile minute.how long w

kogti [31]

7 3/4 × 3/4 = So u add 3×3=9
Then add 4×4=16 Give you 9/16
Then you add that 7 you left out with 9/16
But just the 9 not the 16
7 × 9 = 63 And your answer is 63/16
Hope i help :-)

5 0

2 years ago

Read 2 more answers

Fatima is saving up to buy a $300 bike. She saves $25 each week from her babysitting money. Which linear equation represents the

anzhelika [568]

300%25x because 25 per each job which is xxx and 300 is how much she needs so total amount divided by amount needed

7 0

2 years ago

Consider the lengths of stay at a hospital’s emergency department. Hours Count Percent 1 18 3.44 2 55 10.50 3 81 15.46 4 109 20.

Vladimir [108]

Answer:

Probability = 0.502

Step-by-step explanation:

We are given the following data :

Hours Count Percent

1 18 3.44

2 55 10.50

3 81 15.46

4 109 20.80

5 88 16.79

6 66 12.60

7 39 7.44

8 17 3.24

9 17 3.24

10 19 3.63

15 15 2.86

We need to calculate the probability

P(Length of stay of exactly 1 is less than or equal to 4)

P( $Y \leq 4$ ) = P(Y = 1) + P(Y = 2) + P(Y = 3) + P(Y = 4)

$P(Y \leq 4) = 0.0344 + 0.1050 + 0.1546 + 0.2080 = 0.502$

We convert the percent into probabilities by dividing them with 100. This gave us the required probabilities.

8 0

2 years ago