Answer:
Step-by-step explanation:
The easiest way to determine the answer to your question is to evaluate the
discriminant
For a quadratic in the form:
y
=
a
x
2
+
b
x
+
c
the
discriminant
) is equal to
b
2
−
4
a
c
For your example
4
x
2
+
8
x
+
3
=
0
The
discriminant
is
Δ
=
8
2
−
4
(
4
)
(
3
)
2
(
4
)
Answer:
What do you need help with, it looks complete to me.
Step-by-step explanation:
D.-1
Step-by-step explanation:
as u have been told in the question that -2/2 the slash is division .
when you divide it gives you -1 as the answer .thank you
Answer:
In question number 9 I think is: 3. In question number 10 is: 3. If is not corect well...Im sorry I tried my best :) Hope it helps!
Step-by-step explanation:
Answer:
3 apples and 7 bananas
Step-by-step explanation:
Let x=apple y=banana
1.75x+.7y=10.15
x+y=10
This is a systems of equation I that I will be using substitution to solve
x=10-y
We can plug this x value in for in the first equation
1.75(10-y)+.7y=10.15
17.5-1.75y+.7y=10.15
-1.05y= -7.35
y=7
This is our y value and we can plug this into any of the two first equations to get our x value
x+7=10
x=3
Which means he bought 3 apples and 7 bananas
