You can use the discriminant rule, which is :
b^2 -4ac
“exactly one solution” means that it is equal to zero
so:
b^2 -4(4)(9)=0
b^2 -4(36)=0
b^2 -144=0
b^2=144
square root both sides
b=12 or -12
hope this helps !
Answer:
20
Step-by-step explanation:
2 lions with 6 tigers, 4 bears and 8 monkeys
Answer:
The answer is B
Step-by-step explanation:
Answer:
(-1,-1)
- Step-by-step explanation:
The square needs to be all side with the same value when you graph the vertices on x-y plot, you obtain (x is the dot that correspond a vertice and y the forth vertice )
x 2 | x
1 |
<u> |</u> <u> </u>
-2 -1 | 1 2
y -1| x
-2 |
If you draw a line between vertices the value it will be 2 + (-1) so the forth vertice has to be (-1,-1)
Answer: ∠ERT and ∠MRC
Step-by-step explanation:
When two lines intersect each other they make a cross (X) and the angles opposite each other when two lines cross (X) are called the vertical opposite angles. They are also known as vertical angles.
Vertically opposite angles are always equal.
From the given options, only ∠ERT and ∠MRC are the pair of angles that vertical angles.