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mariarad [96]
3 years ago
13

Simplify. (-3v^2+v-2)+(4v^2+5v+6)

Mathematics
2 answers:
Romashka [77]3 years ago
8 0

Answer:

v^2+6v+4

Step-by-step explanation:

Combine like terms

-3v^2 + 4v^2 = v^2

v + 5v = 6v

-2 + 6 = 4

v^2+6v+4

polet [3.4K]3 years ago
5 0
ANSWER

{v}^{2}+ 6v + 4

EXPLANATION

The given expression is:

( - 3 {v}^{2} + v - 2) + ( 4{v}^{2} + 5v + 6)

We regroup similar terms to obtain;

- 3 {v}^{2} + 4{v}^{2}+ v + 5v- 2 + + 6

We now combine the similar terms to get:

{v}^{2}+ 6v + 4

We cannot simplify further.

The simplest form is

{v}^{2}+ 6v + 4
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Leyla is redecorating her living room. The room is in the shape of a right rectangular prism. The dimensions of the room are 15
serg [7]

Answer:

Total floor: 150 sq ft = $450

Wall and Ceiling: 550 sq ft = $60

Total cost $510

Step-by-step explanation:

Floor: 15 sq ft * 10 sq ft (L * W) = 150 sq ft

150 sq ft * $3 = $450

Walls: 2(H * L) = 2(8*15) = 240 sq ft

2(H * W) = 2(8*10) = 160

Total walls sq ft = 400 sq ft

Ceiling is same as floor = 150 sq ft

Total sq ft painted = 550 sq ft

550 sq ft / 275 sq ft (covered per paint) = 2 paints = $60

$450 floor + $60 paint = $ 510

3 0
2 years ago
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If the sum of the greatest and smallest of 4 consecutive even integers equals 30, what is the sum of all four integers?
Pie

Answer:

The sum of all four integers is 60.

Step-by-step explanation:

Let the integers be x, x + 2, x + 4, and x + 6.

x + x + 6 = 30

2x = 24

x = 12

So x + x + 2 + x + 4 + x + 6 = 4x + 12 = 60

7 0
3 years ago
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Plz help and explain why! I Will mark you brainliest if I can:
andre [41]

Answer:

c.) Congruent

Step-by-step explanation:

If two angles are vertical they are also congruent.When two lines intersect to make an X, angles on opposite sides of the X are called vertical angles. These angles are equal, and here's the official theorem that tells you so. Vertical angles are congruent: If two angles are vertical angles, then they're congruent. (Hope This Helps)

6 0
3 years ago
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What number is exactly half way between 1/9 and 1/3
nata0808 [166]

Answer:

1/5

Step-by-step explanation:

1/9=0.11

1/3=0.33

1/5=0.20

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6 0
3 years ago
If f(x) = x2 − 6x + 3 x − 1 , what is f(−1)? A) −5 B) −2 C) 2 D) 5
ale4655 [162]

Answer:

f(-1)=3

Step-by-step explanation:

f(x)=x^2-6x+3x-1

f(x)=x^2-3x-1

f(-1)=(-1)^2-3(-1)-1

f(-1)=1+3-1

f(-1)=4-1

f(-1)=3

8 0
4 years ago
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