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baherus [9]
3 years ago
15

Simultaneous Equations - 5p-2q=9 3p+2q=7

Mathematics
1 answer:
Luda [366]3 years ago
4 0

Apnswer:

p = 1

q = -2

Step-by-step explanation:

5p - 2q = 9   eqn 1

3p + 2q = 7    eqn 2

subtract equation 2 from 1

2p = 2

p = 1

Substitute for p in equation 1

5(1) - 2q = 9

5 - 2q = 9

-2q = 4

q = -2

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Question: The function f(x) = 3x-4 has a range of \{-7, -1, 0, 5, 11, 20\}.

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Domain: \{-1, 1,\frac{4}{3}  , 3, 5, 8\}

Step-by-step explanation:

Domain is the input, and range is the output. In other words, the domain is the x value, and the range is the f(x) (the whole value, output). So we will solve each one step by step, all with the same solution. To reiterate, what is done for -7, for instance, will be done for every other range.

Start with -7. Remember, solve this accordingly.

Replace the f(x) with the range

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-7 + 4 = -3

<em>(When adding negative a to a positive, it results in a negative.)</em>

\frac{-3}{3} = -1

That's how you solve it.

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