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3 years ago

What is the perimeter of the figure? A. 20 m B. 21 m C. 26 m D. 27 m

Mathematics

2 answers:

vazorg [7]3 years ago

7 0

Answer:

Step-by-step explanation:

LenaWriter [7]3 years ago

4 0

C. 26 m because you subtract 6-3 to get the unlabeled side and 7-4 to get the second one which gives you 3 and 3. You then add everything up, 6+3+3+3+7+4= 26

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Step-by-step explanation:

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3 years ago

EXPLAIN THE ERROR Cody was given two points (1/2,4) and (2/3,1), on a line and asked to create a linear equation in standard for

inessss [21]

Answer:

Cody made a mistake when calculating the slope of the line and this affected every other steps after than.

She divided -3 by 6 instead of -3 by 1/6

Step-by-step explanation:

Given

$(x_1,y_1) = (\frac{1}{2},4)$

$(x_2,y_2) = (\frac{2}{3},1)$

<em>See attached for steps</em>

Required

Explain Cody's error

<em>Cody made a mistake when calculating the slope of the line and this affected every other steps after than.</em>

See Proof

Slope (m) is calculated as thus:

$m =\frac{y_2 - y_1}{x_2 - x_1}$

$m =\frac{1 - 4}{\frac{2}{3} - \frac{1}{2}}$

$m =-\frac{ 3}{\frac{1}{6}}$

$m = -3/\frac{1}{6}$

$m = -3 * 6$

$m = -18$

This is in contrast to $m = -\frac{1}{2}$ , calculated by Cody

Solving further to determine the equation.

$y - y_1 = m(x - x_1)$

Where

$(x_1,y_1) = (\frac{1}{2},4)$

$m = -18$

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$y - 4 = -18x + 9$

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3 years ago

Help me pleaseeee thank you sm

Leno4ka [110]

Answer:

The answer is A) 379.9

Step-by-step explanation:

3.14(11^2)

3.14*11^2

3.14*(11*11)

379.94 if rounded to the nearest tenth it would be 379.9

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3 years ago

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MrRissso [65]

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