Answer: the correct answer is a. His reinforcements saved Confederate troops from defeat.
Explanation:
He was appointed a brigadier general in the Confederate Army and took command of forces garrisoned at Harpers Ferry. Johnston played a major role in the first major victory of the war in July 1861, when he reinforced General P.G.T. Beauregard and oversaw a routing of Union troops at the First Battle of Bull Run (Manassas).
Roger Bacon was one of the earliest European scholars to refine the scientific methods,he developed the idea of making observations,hypothesis as then experimenting to test the hypothesis.
Answer:
We can also find the vertex by using the expressions:
(
−
b
2
a
,
f
(
−
b
2
a
)
)
Standard form:
a
x
2
+
b
x
+
c
=
0
In this example,
a
=
−
1
and
b
=
0
x
=
−
0
2
(
−
1
)
=
0
2
=
0
y
=
f
(
0
)
=
7
−
0
2
=
7
Same result of
(
0
,
7
)
