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Over [174]
2 years ago
5

Help please (3x^2 + 5x - 9) + (-3x + 4)

Mathematics
2 answers:
mixas84 [53]2 years ago
4 0

Answer:

3x^2 + 2x - 5

Step-by-step explanation:

can i have a brainlest plz

emmainna [20.7K]2 years ago
4 0

Answer:

(3x^2+5x-9-3x+4)

or, 3x^2+2x-5

or, 3x^2+(5-3)x-5

or, 3x^2-3x+5x-5

or, 3x(x-1)+5(x-1)

or, (x-1) (3x+5)

hope u get it

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A submarine is positioned at 300 feet below sea level. A bird is flying 100 foot above sea
alexandr1967 [171]

Answer:

h = 400 ft

The bird is 400 ft above the submarine

Step-by-step explanation:

Given;

The submarine is 300 feet below sea level

Vertical distance between submarine and sea level h1 = 300 feet

The bird is flying at 100 feet above sea level

Vertical distance between the sea level and the bird h2 = 100 feet

The total vertical distance between the bird and the submarine is the sum of the vertical distance between submarine and sea level and the vertical distance between the sea level and the bird.

h = h1 + h2

h = 300 ft + 100 ft

h = 400 ft

The bird is 400 ft above the submarine

6 0
3 years ago
Solve the equation using mental math.<br><br> 7 + r = 15
mrs_skeptik [129]

Answer:

r = 8

Step-by-step explanation:

7 + 8 = 15

so r = 8!

5 0
3 years ago
Read 2 more answers
How many volleyball games would Rana
Fed [463]

Answer:

90 games

Step-by-step explanation:

Given: Total number of team (n) = 10

           Each team will play twice with each other.

We know that every team will play two game with each other except with itself, therefore each team will play (n-1)\times 2

⇒ Each team will play = (10-1)\times 2 = 18\ games

∴ Each team will have 18 games with each other in the league.

Now, as there are total 10 teams and each team have 18 games each, however, we have to make sure that no team have more than two games with other team.

Example: team_1 vs\ team_2\\\\team_2\ vs\ team_1\\

Both the above game are same and it is a mistake to take two different game.

∴ Total number of games played by all team= \frac{(n \times number\ of\ games\ played\ by\ each\ team}{2}

⇒ Total games = \frac{(10\times 18)}{2} = 90\ games

∴ Rana have to schedule 90 games in the Volleyball league.

8 0
3 years ago
6x = 2y - 7 what is the terms
Fudgin [204]

Answer:

y = 3x+7/2, and x = (2y-7)/6

Step-by-step explanation:

6 0
3 years ago
What is the minimum number of binary bits needed to represent each of the following unsigned decimal integers? a. 65
professor190 [17]

Answer: N >/= 7 bits

Minimum of 7 bits

Step-by-step explanation:

The minimum binary bits needed to represent 65 can be derived by converting 65 to binary numbers and counting the number of binary digits.

See conversation in the attachment.

65 = 1000001₂

65 = 7 bits :( 0 to 2^7 -1)

The number of binary digits is 7

N >/= 7 bits

7 0
3 years ago
Read 2 more answers
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