Bosco

   the voltage across a buzzer is 3v when the current through it is 2mA. what is the resistance     

   E = I • R     —>     R  =  E / I     

                                R  =  3 / 0.002     

                                R  =  1500 Ω     

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What is the measure of an exterior angle in a regular polygon with 13 sides?     

Write your answer as an integer or as a decimal rounded to the nearest tenth.     

The sum of the exterior angles of any regular polygon is 360^o.     

Since a polygon that has 13 sides likewise has 13 angles, the     

value of any one of those exterior angles is 360^o / 13  =  27.7^o.     

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   is 9 to the power of 1/2= square root of 9? also, what is 9 to the power of negative 1/2     

   is 9 to the power of 1/2= square root of 9?        9^(1/₂)  =  + 3     

   also, what is 9 to the power of negative 1/2      9^(–1/₂)  =  + 0.33333 • • •     

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   equation to standard form     

   y-5=5(x+3)     

   y – 5 = 5 (x + 3)     

   y – 5 = 5x + 15     

         y = 5x + 20     

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   what is (7x+8)° in a degree is it 95° 94° 93°or 92°?     

   consider 95 – 8 = 87   not evenly divisible by 7     

                 94 – 8 = 86   not evenly divisible by 7     

                 93 – 8 = 85   not evenly divisible by 7     

                 92 – 8 = 84   divided by 7, exactly 12     

   The only way to obtain an integer value is when x = 12.     

   So, assuming no rounding, the answer can only be 92^o.     

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   I need sum help     

   6 x + y =140 what is y if x is -2     

   6x + y  =  140     

   (6)(–2) + y  =  140     

   –12 + y  =  140     

             y  =  140 + 12     

             y  =  152     

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Find the measure of the angle to the nearest degree. Sin = 15/40     

                    sin(x)  =  15/40     

                    sin(x)  =  0.3750     

                    sin^–1 (0.3750)  =  22.024^o  rounds to  22^o     

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