Answer:
There is 36 girls.
Step-by-step explanation:
So basically what I did was that since 4×12 is 48 I did 3×12 which gave me 36 :/
16x^2 − 8x + 1 = 0
<span>Part A:
</span>b^2 - 4ac for ax^2 + bx + c
16x^2 − 8x + 1 = 0
so in this case,
a = 16, b = -8, c = 1
b^2 - 4ac
=(-8)^2 - (4 * 16* 1)
= 64 - 64
= 0
because it's equal 0, answer is one solution
Part B:
<span>4x^2 − 8x − 45 = 0
</span><span>solve the equation by factoring </span>
= (2x - 9)(2x + 5)
set (2x - 9)(2x + 5) equal to 0 to solve for x
so
(2x - 9)(2x + 5) = 0
2x - 9 = 0
x = 9/2
x = 4.5
2x + 5 = 0
x = -5/2
x = -2.5
answer
x = -2.5 or x = 4.5
Hope it helps
Greetings!
Substitute:

Now we can input this into the other equation so, we only have one variable.
Solve for y.

Distribute the parenthesis.

Combine Like Terms.

Add
-50 to both sides.

Simplify.

Divide both sides by
0.01.

Simplify.

Input this value into the other equation.

Add
-700 to both sides.

Simplify.

The answer would be
300,700Hope this helps.
-Benjamin
Answer:
y = (-3/2) x + 3
Step-by-step explanation:
The line passes through (0, 3) and (2, 0)
Slope = (0 - 3)/(2 - 0) = -3/2
Let y = (-3/2) x + b
Use (0, 3) to get b:
3 = (-3/2)*0 + b, so b = 3
Then y = (-3/2) x + 3
Answer:
x
∈
R
−
{
−
2
.
3
}
Explanation:
h
(
x
)
=
x
x
2
−
x
−
6
is defined for all Real values of
x
except those values for which
x
2
−
x
−
6
=
0
x
2
−
x
−
6
=
(
x
+
2
)
(
x
−
3
)
So if
x
=
−
2
or
x
=
3
XXXX
x
2
−
x
−
6
=
0
and
XXXX
h
(
x
)
is undefined