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Lera25 [3.4K]
3 years ago
8

Find the roots of the polynomial equation x^3+2x^2+3x+6=0

Mathematics
1 answer:
rodikova [14]3 years ago
4 0

Answer: x=−2

Step-by-step explanation:

x^3+2x^2+3x+6=0

(x+2)(x^2+3)=0

x+2=0 or x^2+3=0

x=−2


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7 divided by somethings equal 7.35
Dmitriy789 [7]
Let's translate it into an equation and then solve...

7/x = 7.35
x * 7/x = 7.35 * x
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6 0
3 years ago
Two 120 resistors are connected in parallel across voltage supply of 10 vdc what’s the current in this circuit
Daniel [21]

Answer: 0.167

Step-by-step explanation:

This is an applied mathematics question

Resistors in parallel  ⁾/R = ¹/₁₂₀ + ¹/₁₂₀ since the resistor is two 120

Therefore , resolve into fraction now yield

                       ¹/R                              =         1 + 1  

                                                                    -------

                                                                     120

                                                          =         2/120

                                                          =          ¹/₆₀

Therefore,                                  ¹/R   =      ¹/₆₀

 Cross multiply to get R the resistance

                                                      R  =  60

From formula,                                V = IR where I is the current

There fore making I the subject of the formula

                                                        I = V/R

                                                          = 10/60

                                                          = 0.166

                                                          = 0.167 A, A = ampere which is the unit of current.

                   

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3 years ago
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a) fraction notation 1/5 and percent notation is 20% or just 20

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