negusutasew
negusutasew negusutasew
  • 24-12-2021
  • Mathematics
contestada

If the sum of the roots of the equation 3x² + kx + 1 = 0 is 7. then what the value of k​

Respuesta :

TheUnknownScientist
TheUnknownScientist TheUnknownScientist
  • 24-12-2021

Answer:

The value of k is -21

Step-by-step explanation:

ax² + bx + c = 0

Sum of the roots = -b/a

3x² + kx + 1 = 0

= sum of the roots = -k/3

-k/3 = 7

Now, Multiply both side by (-3) we get,

(-3)-k/3 = 7(-3)

k = -21

Thus, The value of k is -21

-TheUnknownScientist 72

Answer Link

Otras preguntas

"The person of the king is sacred, and to attack him in any way is an attack on God itself. Kings represent the Divine Majesty and have been appointed to Him t
Towns X, Y, and Z are on the same straight road. Town Y is between Town X and Town Z. Town X is 57 miles from Town Z, and Town Y is 28 miles from Town Z. What i
In the equation Y+8=2 what does y=?
One is most likely to encounter problems with the social desirability bias when using​
What order did the rock layers and features form in this photograph (listed from oldest to youngest)?
water weighs about 8.34 lb per gallon about how many ounces per gallon is the weight of the water
Evaluate the expression for the given values. mx−y when m=1, x=5, and y=2 Enter your answer in the box. I think the answer is 13 or 1...
Select the two primary causes of the Civil War. cotton production, slavery slavery, economics taxes, slavery sharecropping, poverty
(enter positive answer first separated by comma and a space) I forgot how to this help me.
what forces resulted in the emergence of diverse native societies in both north and south america?