The answer A.the solution is (5,-2) definitely works because 5+-2=3 and 5--2=7 not sure if there's infinite number of solutions tho
Answer:
The solution of given equation is ( - 1 + 2 i ) , ( - 1 - 2 i )
Step-by-step explanation:
Given equation as :
3 x² + 6 x +15 = 0
The value of x fro the quadratic equation a x² + b x + c = 0 is obtained as
x =
So , from given eq , the value of x is now obtain as
x =
Or, x =
Or, x =
∴ x = ( - 1 + 2 i ) , ( - 1 - 2 i )
Hence The solution of given equation is ( - 1 + 2 i ) , ( - 1 - 2 i ) Answer
Answer:
The least number of stamps required is
Step-by-step explanation:
Let the number of cent stamps be and cent stamps be
We have
The minimum number is obtained when more cent stamps are used
Here cannot be greater than since
Substitute
Not possible since is not a fraction
Substitute
Not possible since is not a fraction
Substitute
Possible
Hence minimum number of stamps is
B: z=80___________________________________
(9 - 7 × 3 + 4)²
(9 - 21 + 4)²
(9 - 17)²
(-12)²
144