All Answers 358553 Answers

The answer is (2 + 1/2)/2 = 5/4.

The possible values of k are 5/2 and -7/3.

     What is 12/9 divide by 2/3     

           ¹²/₉ / ²/₃     

      To divide by a fraction, invert the divisor and multiply.     

           ¹²/₉  x  ³/₂  =  ³⁶/₁₈     

                             =  2     

_.     

   Use the Distributive Property to solve the equation.     

   three fourths​(12a+8​)=31.2     

    (³/₄)(12a + 8)  =  31.2     

              9a + 6   =  31.2     

              9a         =  31.2 – 6     

                     9a  =  25.2     

                       a  =  2.8     

_.     

   (x-5) (x+5) as quadratic in standard form     

   (x – 5)(x + 5)     

   multiply each term in one by each term in the other     

   (x – 5)(x + 5)  =  x² + 5x – 5x – 25          

                          =  x² – 25     

.     

   A:B=5:4 and A:C=6:5 then what is C:B=?     

   A/C = 6/5    —>    C/A = 5/6    —>    C = 5A/6     

   A/B = 5/4    —>    B/A = 4/5    —>    B = 4A/5     

                                                                           ^5A/₆            5A         5     

                                                             C/B  =  ––––––  =   –––– x ––––     

                                                                           ^4A/₅              6         4A    

   the A's cancel                                    C:B  =  25:24     

_.     

   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     

_.     

The answer is 15/4.

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.     

_.     

   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 • • •     

_.     

   equation to standard form     

   y-5=5(x+3)     

   y – 5 = 5 (x + 3)     

   y – 5 = 5x + 15     

         y = 5x + 20     

_.     

   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.     

_.     

   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     

_.     

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     

_.     

   how do you find the axis of symmetry from y = (x-9)(x+5)?     

   You can tell from the factors that the parabola crosses the x-axis at +9 and –5.     

   The axis of symmetry is the vertical line halfway between these two crossings.     

   The axis of symmetry, i.e., the line halfway between (–5,0) and (+9,0), is x = 2.     

   _.     

   square root of 49     

   sqrt(49) = + 7      That's pronounced "plus or minus seven".     

   Everybody knows the square root of 49 is 7.  That part is easy.     

   Half of them forget that negative 7 is also the square root of 49.     

   _.