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Ber [7]
3 years ago
14

6x-4y=-15 and x-4y=1

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
4 0

Answer:

The solution to the given system of equations is

(-\frac{16}{5},-\frac{21}{20})

Step-by-step explanation:

Given system of equation are

6x-4y=-15\hfill (1)

x-4y=1\hfill (2)

To solve equation by using elimination method

Now subtracting equations (1) and (2)

6x-4y=-15

x-4y=1

_________________

5x=-16

x=-\frac{16}{5}

Substitute x=-\frac{16}{5}  in equation (1)

6(-\frac{16}{5})-4y=-15

-\frac{96}{5}-4y=-15

-4y=-15+\frac{96}{5}

-4y=\frac{21}{5}

y=-\frac{21}{20}

Therefore the solution is

(-\frac{16}{5},-\frac{21}{20})

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Step-by-step explanation:

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4 years ago
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hichkok12 [17]

Answer:

Option D is correct.

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Step-by-step explanation:

Geometric sequence states that a sequence of numbers in which the ratio between consecutive terms is constant,

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Given the sequence: 64, 32, 16 , 8......

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therefore, the explicit formula for the geometric sequence is, a_n = 64 \cdot (0.5)^{n-1}


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