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Oliga [24]
3 years ago
15

the radius and height of a solid right circular cone are in the ratio 5 : 12. If its volume is 314 cm cube. find total surface a

rea
Mathematics
1 answer:
navik [9.2K]3 years ago
4 0

Answer:

Step-by-step explanation:

Idk

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Find the roots of the following equations.<br> a) 4x+9=34<br> b) (x-4)(x+2)=0<br> c) 2x^2-6x+4=0
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    <u>      - 9   - 9</u>
          <u>4x</u> = <u>25</u>
           4      4
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B. (x - 4)(x + 2) = 0
    x - 4 = 0    U    x + 2 = 0
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         x = 4                 x = -2

C.          2x² - 6x + 4 = 0
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            <u>2(x² - 3x + 2)</u> = <u>0</u>
                      2             2
                x² - 3x + 2 = 0
                x = <u>-(-3) +/- √((-3)² - 4(1)(2))</u>
                                      2(1)
                x = <u>3 +/- √(9 - 8)</u>
                               2
                x = <u>3 +/- √(1)
</u>                            2<u>
</u>                x =<u> 3 +/- 1
</u>                          2
                x = <u>3 + 1</u>    U    x = <u>3 - 1</u>
                         2                      2
                x = <u>4</u>                 x = <u>2</u>
                      2                       2
                x = 2                 x = 1
<u />
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