3 years ago

(x4 − 9x + 5x7) + (5x − 10 + 3x4 − 2x2)

Mathematics

1 answer:

Svetlanka [38]3 years ago

4 0

Answer:

(x^4 - 9·x + 5·x^7) + (5·x - 10 + 3·x^4 - 2·x^2)

x^4 - 9·x + 5·x^7 + 5·x - 10 + 3·x^4 - 2·x^2

5·x^7 + x^4 + 3·x^4 - 2·x^2 - 9·x + 5·x - 10

5·x^7 + 4·x^4 - 2·x^2 - 4·x - 10

You might be interested in

Which of the following has no solution?

xz_007 [3.2K]

8 0

3 years ago

Read 2 more answers

A toy airplane cost 4.84.It cost 4 times as much as a toy car.What is the cost of the toy car?

Veronika [31]

Divide the cost of the airplane by 4.

4 0

3 years ago

Read 2 more answers

Mary is going down a straight waterslide that is 150 feet above the ground. The waterslide is 225 feet long. What is the angle o

xz_007 [3.2K]

Answer:41.81 degrees

Step by step solution: see photo

8 0

3 years ago

Use the regression calculator to compare the teams’ number of runs with their number of wins. a 2-column table with 9 rows. colu

-Dominant- [34]

The equation of the trend line is ŷ = 0.15x - 23.21

<h3>How to determine the average rate of change of the trend line?</h3>

The points are given as:

hr =>808, 768, 655, 684, 637, 619, 613, 609, 563

w => 93, 94, 66, 81, 86, 75, 61, 69, 55.

Using a graphing calculator, we have the following calculation summary:

Sum of X = 5956
Sum of Y = 680
Mean X = 661.7778
Mean Y = 75.5556
Sum of squares (SSX) = 50569.5556
Sum of products (SP) = 7547.1111

The regression equation is represented as:

ŷ = bX + a

Where:

b = SP/SSX

b = 7547.11/50569.56

b = 0.14924

a = MY - bMX

a = 75.56 - (0.15*661.78)

a = -23.20961

This gives

ŷ = 0.14924X - 23.20961

Approximate

ŷ = 0.15x - 23.21

Hence, the equation of the trend line is ŷ = 0.15x - 23.21