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Schach [20]
3 years ago
7

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.Immersive Reader

Mathematics
1 answer:
Vlad1618 [11]3 years ago
4 0

Answer:

C. D:{0, 1, 2, -4}- R:{1, -3, -4}

Step-by-step explanation:

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200 labourers need 50 days to construct a road of 4 km long. How many labourers are needed to construct 8 km long in 80 days​
patriot [66]

Answer:

250

Step-by-step explanation:

Number of labourers * Number of days worked = Total number of working days

Total number of working days to construct a 4km long road: 200*50=10000

Total mumber of working days to construct a 8km long road: 10000*2=20000

Labourers: 20000 ÷ 80 = 250.

250 labourers are required.

7 0
3 years ago
What is the product of a+3 and −2a2+15a+6b2?
Arte-miy333 [17]

Answer:

<h3>            -2a³ + 9a² + 6ab² + 45a + 18b² </h3>

Step-by-step explanation:

(a + 3)×(−2a² + 15a + 6b²) =

= a×(−2a² + 15a + 6b²) + 3×(−2a² + 15a + 6b²) =

= -2a³ + <u>15a²</u> + 6ab² - <u>6a²</u> + 45a + 18b² =

= -2a³ + 9a² + 6ab² + 45a + 18b²

8 0
2 years ago
Read 2 more answers
If a- 2b +3c =0 prove that a³ -8b³+ 27c²= - 18abc​
inna [77]

Step-by-step explanation:

the answer is in the photo as attached

4 0
2 years ago
Read 2 more answers
The table below shows the number of red, blue, and white ribbons won by 4 girls during last years gymnastic season
Yuri [45]

Answer: B or D

Step-by-step explanation:

Karens ration is 5:15 whilst chens is 6:19

1/3 of 15 is gonna be 5, while 19 is gonna be around 6.3

I got 1/3 cause there is 3 colors, and red is one of them, since the question is asking about the total. I would be leaning more towards B though.

3 0
2 years ago
Read 2 more answers
I need help with this question​
qaws [65]
18 ft each cube is 6ft and 6x3=18 (3 because there is three cubes)
6 0
3 years ago
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