The answer should be 6. hope this helped
In a trapezoid, with bases
and
and height
, the area is given by

In your case:



so, the formula becomes

Since the area is
, we have

<span>3x^2 + 16x + 9 −16x − 12
= 3x^2 - 3
hope it helps</span>
Answer:
x=1/3 or x=−3/2
Step-by-step explanation:
7x2+10x−3=x2+3x
Step 1: Subtract x^2+3x from both sides.
7x2+10x−3−(x2+3x)=x2+3x−(x2+3x)
6x2+7x−3=0
Step 2: (3x−1)(2x+3)=0
Step 3: Set factors equal to 0.
3x−1=0 or 2x+3=0
x=1/3 or x= −3/2
6.6
×
10
−
8
3.3
×
10
−
4
=
2
×
10
−
4
Explanation:
6.6
×
10
−
8
3.3
×
10
−
4
=
6.6
3.3
×
10
−
8
10
−
4
=
2
×
10
(
−
8
)
−
(
−
4
)
- as
a
m
a
n
=
a
m
−
n
=
2
×
10
−
8
+
4
=
2
×
10
−
4