3 years ago

5x+7y=10 8x-5y=2 Please help!

Mathematics

1 answer:

Mrrafil [7]3 years ago

5 0

(x,y)=(64/81, 70/81) I can provide a description if needed. I used the process of elimination.

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PLZ help super fast thanks

Nikolay [14]

Answer:

B. $\frac{1}{x^2y^7}$

Step-by-step explanation:

Given:

$(x^3y^{-2}z)(x^{-5}y^{-5}z^{-1})$

Hence Solving the given expression we get;

By Law of Indices which states;

$(a^xb^yc^z)(a^pb^qc^r) = a^{x+p}b^{y+q}c^{z+r}$

Hence we get;

$x^{3+(-5)}y^{(-2)+(-5)}z^{1+(-1)}\\\\x^{3-5}y^{-2-5}z^{1-1}\\\\x^{-2}y^{-7}$

Also We know that

$a^{-6} =\frac{1}{a^6}$

So,

$\frac{1}{x^2y^7}$

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3 years ago

{(0, 8), (1,2), (3,7), (5,9), (3,6)}<br> Function or not

katrin [286]

Answer:

Step-by-step explanation:

The is only one output for each value

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3 years ago

Write the decimal equivalent to 43/12.

Iteru [2.4K]

The answer I have is3.583

6 0

3 years ago

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Vesna [10]

tan(angle) = opposite / adjacent

tan(x) = 8/10

x = arctan(8/10)

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4 years ago

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Alex73 [517]

Answer:

Reflection over x-axis

Horizontal shift right 1

Vertical shift up 6

Step-by-step explanation:

see image to see how to find this infor in the equation.

Horizontal changes are in close to the x, but opposite of what you might think. Minus shifts RIGHT and plus shifts LEFT.

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3 years ago

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