Step-by-step explanation:
We need to write the function that have two real number zeros by calculating the discriminant i.e.
.
We know that,
If D>0 the roots are real and unequal
If D= 0 roots are real and equal
If D< 0 roots are imaginary or not real and unequal
Function (1)

D>0 the roots are real and unequal
Function (2)

D<0 the roots are real and unequal
Function (3)

D>0 the roots are real and unequal
Function (4)

D>0 the roots are real and unequal
Function (5)

D<0 the roots are real and unequal
Function (6)

D>0 the roots are real and unequal
(1),(3),(4) and (6) have two real number zeroes.
Answer:
(-5,-2)
(-4,-3)
(-6,-1)
Step-by-step explanation:
-5(x)-2(y)=-7
-4(x)-3(y)=-7
-6(x)-1(y)=-7
Answer:
A. finished 1km
Step-by-step explanation:
b. 8km per hour
Answer:
The volume of the shape is 29376
Step-by-step explanation:
You multiply 12 x 17 and get 204 x 12 and get 2448 x 12 and get 29376.
Answer:
c and g
Step-by-step explanation: