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natita [175]
3 years ago
11

Compare the line passing through the points (—2, —9) and (4, 6) to the line given by the equation y = 2/5x - 4

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0

Answer:Option D

Step-by-step explanation:Can't be asked to explain.

Hope it helps :)

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Step by step:A prediction is basically an educated guess and if you are looking for the exact word to describe that you would find that hypothesis is the correct way to tell what is a prediction.

Answer:B

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3 years ago
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The cost of petrol rises by 2 cents a liter. Last week a man bought 20 liters at the old price. This week he bought 10 liters at
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Answer: the old price for 1 liter is $0.3

Step-by-step explanation:

Let x represent the old price for 1 liter of petrol.

Last week a man bought 20 liters at the old price. This means that the total amount that the man paid for 20 liters is 20x.

The cost of petrol rises by 2 cents a liter. This means that the new price per liter is x + 2/100 = x + 0.02

This week he bought 10 liters at the new price. This means that the total amount that the man paid for 10 liters is

10(x + 0.02)

= 10x + 0.2

Altogether, the petrol costs $9.20. This means that

20x + 10x + 0.2 = 9.2

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30x = 9.2 - 0.2

30x = 9

x = 9/30

x = 0.3

3 0
3 years ago
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Digiron [165]

Answer:

okay

Step-by-step explanation:

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3 0
3 years ago
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If a = 2b^3 and b = − 1/ z c^−2, express a in terms of c.
m_a_m_a [10]

Answer:

a = -2 z^-3 c^6

Step-by-step explanation:

equations are given as

a = 2b^3              .....1  and

b = -1/ z c^-2        .....2

put the value of b in eq 1

a = 2(-1/z c^-2)^3

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or  a = -2 z^-3 c^6

5 0
3 years ago
An equilateral triangle has sides length 6 cm. What is the perimeter?
Vesnalui [34]

Answer:

<em>18cm</em>

Step-by-step explanation:

Perimeter of triangle= a+a+a (side + side+ side)

Perimeter of triangle= 6 cm+6cm+6cm

Perimeter of triangle= 18cm

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3 years ago
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