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olga2289 [7]
3 years ago
10

X2 - 2xy + y2 when x = 3 and y = 2​

Mathematics
2 answers:
luda_lava [24]3 years ago
8 0

Answer:

1

Step-by-step explanation:

Substitute 3 for x and 2 for y:

3^2 - 2(3)(2) + 2^2

= 9 - 12 + 4

= 1

marishachu [46]3 years ago
4 0

3^2−(2)(3)(2)+2^2

3^2−(2)(3)(2)+2^2

= 1

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What is y=x+2and 2x+y=8
Leya [2.2K]

Answer:

1. x=y−2

2. -1/2y + 4

Step-by-step explanation:

5 0
3 years ago
Ines has saved $5. She doubles the amount she saves each week. Does the function have a constant difference or a constant ratio?
salantis [7]

Answer:

The function have a constant ratio

No, it does not represent an exponential function.

Step-by-step explanation:

As given,

Ines has saved $5. She doubles the amount she saves each week.

⇒ In first week she saved = $5

   In second week she saved = 2×$5 = $10

   In third week she saved = 2×$10 = 20

  In fourth week she saved = 2×$20 = 40

and so on..

∴ we get the series

5, 10, 20, 40 ,.......

If the series is given as a, b, c, d, ..... , then

The common difference is defined as d = b-a = c-b

The common ration is defined as r = \frac{b}{a} = \frac{c}{b}

Here, in the given question

The series is - 5, 10, 20, 40

This has no common difference , d =   10 - 5 (= 5 )≠ 20 - 10 (= 10)

As 5 ≠ 10

So the function does not define common difference .

Now,

This has common ratio , r =  \frac{10}{5} (=2) = \frac{20}{10}(=2)

As 2 = 2

So, the function represent common ratio

Now,

The function does not represent an exponential function because it is increased by common ratio.

7 0
3 years ago
Round the following numbers<br> to the nearest len<br> 1)7<br> 2)23<br> 3)1.562
Drupady [299]

1) 7 = 7.0

2) 23 = 23.0

3) 1.562 = 1.6

4 0
2 years ago
Read 2 more answers
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mote1985 [20]
To figure that out you could do 99 minus 38, which would lead you to your answer 61.
7 0
3 years ago
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Anastaziya [24]

Answer:

A

Step-by-step explanation:

The money keeps on decreasing as the days go. As you can see, the dots on the scatter plot keep on getting lower and lower.

Can I get brainliest plzz?

4 0
3 years ago
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