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jolli1 [7]
3 years ago
10

Guys, please help me with this question.

Mathematics
1 answer:
Elodia [21]3 years ago
6 0

Answer:

2

Step-by-step explanation:

We are asked to perform the subtraction

x² + xy - 3y² - (5x² - xy + y²) ← distribute the parenthesis by - 1

= x² + xy - 3y² - 5x² + xy - y² ← collect like terms

= (x² - 5x²) + (xy + xy) + (- 3y² - y² )

= - 4x² + 2xy - 4y²

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Can somone pls help me with this I have a C- in math and I really need help also a like show work on each one plsss
Lady bird [3.3K]

Answer:

1. \frac{3}{8}

2. \frac{1}{4}

3a. -\frac{1}{4}

3b. 3

3c. -\frac{4}{5}

4. m = \frac{y_1 - y_2}{x_1-x_2}\\

Step-by-step explanation:

1.

Rises 6 inches for every horizontal change of 16 inches

Slope = rise/run

Slope = 6/16

Slope = 3/8

2.

Rises 3 feet for every horizontal change of 12 feet

Slope = rise/run

Slope = 3/12

Slope = 1/4

3a.

m = \frac{y_1 - y_2}{x_1-x_2}

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

m = \frac{1}{-4}

m = -\frac{1}{4}

3b.

m = \frac{y_1 - y_2}{x_1-x_2}\\

m = \frac{-1 - 2}{-1-0}

m = \frac{-3}{-1}

m = 3

3c.

m = \frac{y_1 - y_2}{x_1-x_2}\\

m = \frac{1 - (-3)}{-1-4}\\

m = \frac{4}{-5}\\

m = -\frac{4}{5}

4.

m = \frac{y_1 - y_2}{x_1-x_2}\\

7 0
3 years ago
para una actividad escolar, un curso de 30 estudiantes decide reunir sobres de salsa de tomate y paquetes de tallarines. cada es
Pie

Answer:

30.7777

Step-by-step explanation:

6 0
3 years ago
A relationship between a producer and consumer is best illustrated by
makvit [3.9K]

Answer:

A zebra eating grass

Step-by-step explanation:

Its a zebra eating grass because the zebra in consuming grass, which grass is a producer.

6 0
3 years ago
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34-62+22*3+(36-42) This is for math homework so please don't just answer for points
faust18 [17]

Answer:

<h2>32</h2>

Step-by-step explanation:

34−62+(22)(3)+36−42

=−28+(22)(3)+36−42

=−28+66+36−42

=38+36−42

=38+−6

=32

3 0
3 years ago
Read 2 more answers
Whats 9 divide by 6.5
dezoksy [38]
It's an irrational number which means the number never ends and has no pattern in its decimal. So you would round it:
9/6.5= 1.384615384615385
but the answer would be 1.384
8 0
3 years ago
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