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Oksanka [162]
3 years ago
9

Calculate the length of the circumference of a circle with diameter of 7cm (1dp)

Mathematics
1 answer:
AysviL [449]3 years ago
7 0
22.0. diameter times pie to get your answer then round to 1dp
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Use the given conditions to write an equation for the line in point-slope form and slope-intercept form.
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slope-inercept form: y = 3x + 3        point-slope form: y - 9 = 3(x - 2)

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5 0
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triangle QRS is an equilateral triangle. If QR is seventeen more than twice x, RS is 19 less than six times x, and QS is one les
koban [17]

Value of x is 9 and measure of each side is 35 units.

<u>SOLUTION: </u>

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QR is seventeen more than twice x, \rightarrow QR = 17 + 2x

RS is 19 less than six times x, \rightarrow RS = 6x-19

And QS is one less four times x, \rightarrow QS = 4x-1

We have to find x and measure of each side.

Now, we know that, sides of equilateral triangle are equal,  

Then QR = QS \rightarrow 17 + 2x = 4x-1 \rightarrow 4x-2x = 17 + 1 \rightarrow 2x = 18 \rightarrow x = 9

So, value of x is 9.

\begin{array}{l}{\text { Now, } \mathrm{QR}=17+2(9)=17+18=35} \\\\ {\mathrm{RS}=6(9)-19=54-19=35} \\\\ {\mathrm{QS}=4(9)-1=36-1=35}\end{array}

Hence, value of x is 9 and measure of each side is 35.

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