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Naily [24]
3 years ago
5

4x²-5x+3 + 2x²+7x-8 a. 6x²+2x-5 b. 6x²+12x-5 c. 6x²-2x+5 d. 6x²+2x11

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
3 0
Combine the like terms

(4x^2 + 2x^2) +(7x - 5x) + (3 - 8)
6x^2 2x -5

6x^2 + 2x - 5

Answer is A
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Simplify please help
olchik [2.2K]

Answer:

all work is shown/pictured

3 0
3 years ago
Find the area of the polygon​
Lena [83]

Answer:

Finally I can answer omg been trying to answer for a while but that bot was holding me back Lol

Answer: 286

Step-by-step explanation:

25 × 16 = 400 19 × 6 = 114 400 - 114 = 286 therefore 286 is the answer hope that helps!

5 0
3 years ago
The ratio of hamburgers to hot dogs is 6 to 5. Three times the number of hot dogs is 6 more than twice the number of hamburgers.
Kitty [74]

Answer:the number of hot dogs is 10

Step-by-step explanation:

Let x represent the number of hamburgers.

Let y represent the number of hot dogs.

The ratio of hamburgers to hot dogs is 6 to 5. This means that the ratio of x to y is 6/5

x/y = 6/5

5x = 6y

x = 6y/5

Three times the number of hot dogs is 6 more than twice the number of hamburgers. This means that

3y = 2x + 6 - - - - - - - - -1

Substituting x = 6y/5 into equation 1, it becomes

3y = 2(6y/5) + 6

3y = 12y/5 + 6

Multiplying both sides of the equation by 5, it becomes

15y = 12y + 30

15y - 12y = 30

3y = 30

y = 30/3 = 10

x = 6y/5 = 6×10/5

x = 60/5 = 12

8 0
3 years ago
A basketball player has a 50% chance of making each free through.what is the probability that the player makes at least 11 out o
Inessa05 [86]

Answer:

P = 12·0.5^11·0.5^1 + 0.5^12 = 13/4096 = 0.0032 = 0.32%

6 0
4 years ago
A plane traveled 360 miles each way to Athens and back. The trip there was with the wind. It took 3 hours. The trip back was int
defon

Answer:

S=32.5

W=97.5

Step-by-step explanation:

S=speed of plane in still air

W=speed of wind

-----------------------------------------

3(S+W)=130

6(S-W)=130

-----------------------------------------

S+W=43.33333...

S-W=21.66666...

2S=64.999...

S=32.5(simplified)

-----------------------------------------

32.5+W=130

W=97.5

-----------------------------------------

5 0
4 years ago
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