2 years ago

Adding and subtracting polynomials. help?

Mathematics

2 answers:

vekshin12 years ago

8 0

Answer:

Step-by-step explanation:

1. Remove brackets

2. add like terms (-8y and 2y)

3. copy the un-addble terms behind

PSYCHO15rus [73]2 years ago

6 0

Answer:

Third choice

Step-by-step explanation:

Add and subtract like terms:

-2xy - 6xy = -8xy

-8y - 2y = -10y

-4y^4 + y^4 = -3y^4

Combine them together, and you get:

-3y^4 - 8xy -10y

You might be interested in

1/1-cos theta + 1/1+cos theta = 2cosec² theta

BARSIC [14]

Answer:

Step-by-step explanation:

8 0

2 years ago

The sales tax for a certain state can be found by multiplying the purchase price by 1/20 . What is the sales tax on an item that

Nuetrik [128]

The answer is $1.28 sale tax
Step-by-step explanation:
Multiply the cost of the item times 0.05 to get the amount of the sales tax:
25.60 * 0.05 = $1.28 sales tax

5 0

2 years ago

Read 2 more answers

(4x+8)+(2x+20)=90 help me solve this and draw a diagram

Lemur [1.5K]

Answer:

x = 31/3

Step-by-step explanation:

4x+8+2x+20=90

4x+2x+8+20=90

6x+28=90

6x+28-28=90-28

6x=62

x = 31/3

5 0

2 years ago

A hovercraft takes off from a platform. Its height (in meters), xxx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=

Ad libitum [116K]

the maximum height is the y-value of the vertex.

h(x) = -2x² + 20x + 48

$x = \frac{-b}{2a} = \frac{-20}{2(-2)} = \frac{-20}{-4} = 5$

h(5) = -2(5)² + 20(5) + 48

= -50 + 100 + 48

= 50 + 48

= 98

Answer: 98 meters

8 0

3 years ago

i walked 3y - 2c + 600 meters yesterday. today, i walked 10,000 meters. how many more miles did i walk today?

Leokris [45]

To find out how much more you walked today, you want to find the difference between the two days, which is 10,000-(<span>3y - 2c + 600) = 9400-3y+2c using the distributive property (the negative sign in front of the parenthesis is essentially a -1)</span>

8 0

3 years ago