Whats circumference (dummy terms)

Mathematics

2 answers:

Keith_Richards [23]3 years ago

6 0

Answer:

Circumference is the distance from the one end of a circle to another

ANEK [815]3 years ago

5 0

Answer:

Circumference is the length around the circle.

Step-by-step explanation:

The formula to find it would be pi times radius squared.

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What is the hcf of 36 and 42

ella [17]

$36|2 \\ 18|2 \\ 9 \ |3 \\ 3 \ |3 \\ 1 \\ \\ 36=2^2*3^2 \\ \\ \\ 42|2 \\ 21|3 \\ 7 \ |7 \\ 1 \\ \\ 42=2*3*7 \\ \\ H.C.F(36;42)=2*3=6$

7 0

3 years ago

-1.4(-5+7g)=? simplify the expression

iogann1982 [59]

Answer:

7 - 9.8g

Step-by-step explanation:

$-1.4(-5+7g)\\\\\boxed{7-9.8g}\\\\\left \{ {{-1.4*-5=7} \atop {-1.4*7g=-9.8g}} \right.$

Hope this helps.

4 0

4 years ago

Find the equation of the line that is perpendicular to the line y = (-1/3)x -1 and passes through the point (1, 5)?

Anit [1.1K]

bearing in mind that perpendicular lines have negative reciprocal slopes, so

$\bf \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}~\hspace{10em}\stackrel{slope}{y=\stackrel{\downarrow }{-\cfrac{1}{3}}x-1} \\\\[-0.35em] ~\dotfill$

$\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{1}{3}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{3}{1}}\qquad \stackrel{negative~reciprocal}{+\cfrac{3}{1}\implies 3}}$

so we're really looking for a line whose slope is 3 and runs through (1,5)

$\bf (\stackrel{x_1}{1}~,~\stackrel{y_1}{5})~\hspace{10em} slope = m\implies 3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-5=3(x-1) \\\\\\ y-5=3x-3\implies y=3x+2$