2 years ago

Can anyone help best answer will get a Brainiest

Mathematics

1 answer:

pashok25 [27]2 years ago

4 0

Answer:

This drawn graph is the answer

Step-by-step explanation:

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What is the solution of the system? Use any method.<br><br> 3x + 2y = 7<br> y = –3x + 11

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Answer:

$(5,-4)$

Step-by-step explanation:

SOLVE BY SUBSTITUTION:

STEP 1: Replace all occurrences of $y$ with $-3x+11$ in each equation.

$-3x+22=7\\y=-3x+11$

STEP 2: Solve for $x$ in the first equation.

$x=5\\y=-3x+11$

STEP 3: Replace all occurrences of $x$ with $5$ in each equation.

$y=-4\\x=5$

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zhannawk [14.2K]

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LOL, idk if this is right, but it is how i think it should be solved

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4 years ago

Solve 10 ^(2x+9)=290 Express in terms of natura logarithms

GenaCL600 [577]

Use following log property:
$ln( a^n) = n ln (a)$

Take log of both sides
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Distribute left side, isolate 'x'
$2 ln (10) x + 9 ln(10) = ln (290) \\ \\ x = \frac{ln (290) - 9 ln(10)}{2 ln(10)}$

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4 years ago

The concentration determined for an unknown sample of hydrochloric acid by a student is 0.1354 M.According to the instructor’s i

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Answer:

Step-by-step explanation:

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Express the area of a circle, a, as a function of its circumference, <br> c.

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4 years ago