Answer:
discriminant: 64
Step-by-step explanation:
The discriminant of a quadratic is the expression inside the radical of the quadratic formula.
b^
2
−
4
(
a
c
)
Substitute in the values of a
, b
, and c
.
(
−
8
)^
2−
4
(
6
⋅
0
)
Simplify each term.
Raise −
8 to the power of 2.
64 − 4 (
6 ⋅ 0
)
Multiply 6 by 0
.
64 − 4 ⋅ 0
Multiply −
4 by
0
.
64 + 0
Add 64 and 0
.
64
Answer:
The answer is
<h2>376 cm²</h2>
Step-by-step explanation:
Since the rectangular box is a cuboid,
Total surface area of a cuboid is given by
<h3>2( lw + wh + lh)</h3>
Where
l is the length
w is the width
h is the height
From the question
l = 10 cm
w = 8cm
h = 6cm
Substitute the values into the above formula
That's
Total surface area of the rectangular box is
2 [ (10)(8) + (8)(6) + (10)(6) ]
2 [ 80 + 48 + 60 ]
2( 188)
We have the final answer as
<h3>Total surface area = 376 cm²</h3>
Hope this helps you
Independent because what you get in the first one doesn't effect the second