Answer:
5(w-3)
Step-by-step explanation:
Answer:
The answer is option A.
<h3>35.</h3>
Step-by-step explanation:
To find the number of girls in the class we must first find the total parts
That's
2 + 7 = 9
In the ratio 7 correspond to girls so the number of girls in the class are
7/9 × 45
= 7 × 5
= 35
Hope this helps you
Answer:
- Graph B has one real root.
- Graph A has a negative discriminant
- Graph C has an equation with the coefficients a=1, b=4, c=-2.
Step-by-step explanation:
The number of real roots is the number of places where the graph intersects the x-axis. When the discriminant is negative, there are none. Graph A does not cross the x-axis, so has a negative discriminant.
Graph B intersects the x-axis at one point, so it has one real root.
Graph C has two real roots, consistent with the positive discriminant associated with the given coefficients:
_____
For quadratic ...
the discriminant is ...
and the roots are ...
Then the roots are only real when the discriminant is non-negative. The square root function will not give real values for a negative argument.
ANSWER
My answer is in the photo above