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4 years ago

If AD=20 and AC=3x+4, find the value of x. Then find AC and DC. I don't understand.

Mathematics

1 answer:

Fofino [41]4 years ago

5 0

Using the information we have 3x+4=40 Do the same to each side of the equation to eliminate for x. 3x+4=40 Minus 4 from each side 3x=40-4 3x=36 Divide 3 from each side x=36/3 x=12 AC=3x+4 insert the value of x 3(12)+4=40 AC=40 AD=20

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Answer:

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Step-by-step explanation:

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3 years ago

Find the slope of the line that passes through (40,3000) and (60, 4000).

iragen [17]

Answer:

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General Formulas and Concepts:

Pre-Alg

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Step-by-step explanation:

Step 1: Define

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Step-by-step explanation:

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3 years ago

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nikklg [1K]

Answer:

w = 3 is your answer.

Step-by-step explanation:

You want to get w by itself.

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3 years ago

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zysi [14]

Answer:

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Step-by-step explanation:

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Now that x is alone you switch the x for y and the y for x and you get:

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f^-1(x) = x/5

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3 years ago