3 years ago

When simplified (v2 – y + 1) + (4y2 – 3y - 2) is:

Mathematics

1 answer:

olchik [2.2K]3 years ago

8 0

Answer:

D. 5y^2 - 4y - 1

Step-by-step explanation:

Combine like terms:

(y^2 -y +1) +(4y^2 -3y -2)

= y^2(1 +4) +y(-1-3) +(1 -2)

= 5y^2 -4y -1

You might be interested in

Find the area of a rectangle that has the length of 2x-3 and the width of x .Someone painted an interior area of the rectangle a

Svet_ta [14]

Answer:

The area that was not painted is $(2x^{2}-6x+6)\ units^{2}$

Step-by-step explanation:

step 1

Find the area of the rectangle

we know that

The area of a rectangle is equal to

$A=LW$

In this problem we have

$L=2x-3$

$W=x$

substitute

$A=(2x-3)x\\A=(2x^{2}-3x)\ units^{2}$

step 2

Find the area that was painted

$A=(3)(x-2)\\A=(3x-6)\ units^{2}$

step 3

Find the area that was not painted

Subtract the area that was painted from the total area of rectangle

$A=(2x^{2}-3x)-(3x-6)=(2x^{2}-6x+6)\ units^{2}$

8 0

3 years ago

Each interior angle of a regular polygon is 140°.Find the number of sides

castortr0y [4]

Step-by-step explanation:

Each interior angle=140°

(n-2)180°/n=140°

180°n-360°/n=140°

180°n-360°=140°n

180°-140°=360°

40°n=360°

n=360°/40°

n=9

Hence, the number of sides of the polygon is 9.

It is nonagon .

8 0

3 years ago

What is the product?<br> (-282 +8)(502-65)

Tju [1.3M]

Answer:

option c is the answer for pic

and for question the answer is

(-274)*(437)

-119738

7 0

3 years ago

Read 2 more answers

Help me please I need help on this question

Elena L [17]

The answer would be the 3rd choice because this is a translation

8 0

3 years ago

What is the measure of 1?

Nina [5.8K]

Answer:

Step-by-step explanation:

pls mark brainliest

7 0

3 years ago

Read 2 more answers