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ASHA 777 [7]
3 years ago
5

What is pie multiple by 10 by pie by 10 divided by 7 times 9

"\pi" alt="\pi" align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
aev [14]3 years ago
3 0

Written as an equation:

π * 10 * π*10 / 7 *9

now solve left to right to get:

Exact answer: 900π^2 / 7

Or as a decimal: 1268.949137......  The decimal keeps gong forever.

Round the answer as needed.

Firlakuza [10]3 years ago
3 0

Answer:

100 pi^2

---------------

63

Step-by-step explanation:

pi *10 * pi *10

---------------------

7*9

100 pi^2

---------------

63

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3 years ago
7(x 4) can someone answer fast
jeka94
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3 years ago
Find the solution set of the following quadratic equations using the quadratic formula.
oksian1 [2.3K]

Answer:

<h3>                1)  x_1=\dfrac{7+\sqrt{13}}2\,,\quad x_2=\dfrac{7-\sqrt{13}}2</h3><h3>                2)   x_1=-\dfrac13\,,\quad x_2=-3    </h3>

Step-by-step explanation:

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x^2 - 7x + 9 = 0\quad\implies\quad a=1\,,\ b = -7\,,\ c=9\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-7)\pm\sqrt{(-7)^2-4\cdot1\cdot9}}{2\cdot1}=\dfrac{7\pm\sqrt{49-36}}2\\\\x_1=\dfrac{7+\sqrt{13}}2\,,\quad x_2=\dfrac{7-\sqrt{13}}2

<h3>2)</h3><h3>3x^2 + 10x=-3\\\\3x^2+10x+3=0\quad\implies\quad a=3\,,\ b =10\,,\ c=3\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-10\pm\sqrt{10^2-4\cdot3\cdot3}}{2\cdot3}= \dfrac{-10\pm\sqrt{100-36}}6\\\\x_1=\dfrac{-10+\sqrt{64}}6=\dfrac{-10+8}6=-\dfrac13\,,\qquad x_2=\dfrac{-10-8}6=-3</h3>
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