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3 years ago

4y=x 3x-y=70 how to solve this problem using substitution

Mathematics

1 answer:

diamong [38]3 years ago

3 0

4y=x
3(4y)-y=7012y-y=70
11y=70
y=70/11
4(70/11)=x
280/11=x

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3 years ago

The function h(x)=1/x^2+1 is the result of the composition f(g(x)). If g(x) = x^2+1,what is f(x)? A f(x)=1/square root x B f(x)=

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Take $f(x)=\frac{1}{x}$

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4 years ago

(rs^-3) (4r^-2s^3) please show you're work

VARVARA [1.3K]

The simplified expression is (r $s^{-3$ ) (4 $r^{2$ x s³) is 4r³.

<h3>What are exponents?</h3>

The amount of times a number has been multiplied by itself is shown by its exponent. The result of multiplying 8 by itself n times is represented as follows:

8 x 8 x 8 x 8 x …..n times = 8n

Given:

(r $s^{-3$ ) (4 $r^{2$ x s³)

Now, using the law of exponents we have

$a^m . a^n = a^{m+n$