3 years ago

Subtract (3x2-2x+5xy-7)from(8-9xy+3x2-5x)

Mathematics

1 answer:

shepuryov [24]3 years ago

6 0

Answer:

-3x-14xy+15

Step-by-step explanation:

$(8-9xy+3x^2-5x)-(3x^2-2x+5xy-7)\\\\=8-9xy+3x^2-5x-(3x^2)-(-2x)-(5xy)-(-7)\\\\=8-9xy+3x^2-5x-3x^2+2x-5xy+7\\\\=(8+7)+(-9xy-5xy)+(3x^2-3x^2)+(-5x+2x)\\\\=15-14xy+0-3x\\\\=-3x-14xy+15$

You might be interested in

What is the Y-intercept ??

riadik2000 [5.3K]

The Y intercept is (0,2) so you were correct in your answer

6 0

4 years ago

The diagram shows a scale drawing of a lacrosse field. The diagram is 5 1/2 inches long and 3 inches wide. If 1 inch represents

Elan Coil [88]

Answer:

6600 yd²

Step-by-step explanation:

The area of the scale drawing is ...

(5.5 in)(3 in) = 16.5 in²

Each square inch represents an area of the field that is ...

(20 yd)×(20 yd) = 400 yd² . . . . per square inch of drawing

Then the scale drawing represents a field with an area of ...

(16.5 in²)×(400 yd²/in²) = 6600 yd²

4 0

3 years ago

8x+3>_x+10 how do i solve dis<br> HELP

VashaNatasha [74]

Answer:

x > 1

Step-by-step explanation:

Subtract 3 from both sides

8x + 3 - 3 > x + 10 - 3

Simplify

8x > x + 7

Subtract x from both sides

8x - x > x + 7 - x

Simplify

7x - 7

Divide both sides by 7

7x/7 > 7/7

Simplify

x > 1

5 0

3 years ago

48 = 3/2y <br> simplify your answer as much as possible

Sloan [31]

$48 = 1\frac{1}{2}y \\48(\frac{2}{3}) = 1\frac{1}{2}y(\frac{2}{3}) \\32 = y$

4 0

3 years ago

Find the unknown length x in the right triangle, to the nearest tenth.<br> 16<br> 21

PIT_PIT [208]

Answer:

16 rounded to the nearest 10 is 20

21 rounded to the nearest 10 is 20

so I don't really know but I guess you should put the x as 20 for sure UwU

3 0

3 years ago

Subtract (3x2-2x+5xy-7)from(8-9xy+3x2-5x)​

Subtract (3x2-2x+5xy-7)from(8-9xy+3x2-5x)