Answer:
12
Step-by-step explanation:
Arranging in ascending order -> 9, 10, 12, 12, 13, 15, 16
n = 7
Median = value of ((n + 1) / 2) th term
= value of (7+1) / 2 th term
= value of 4 th term
= 12
Hope it helps :)
Answer:
a = -1/2
b = 2
Step-by-step explanation:
Step 1: Rewrite 1st equation
-b = -5 - 6a
b = 5 + 6a
Step 2: Substitution
4a - 3(5 + 6a) = -8
Step 3: Solve
4a - 15 - 18a = -8
-14a - 15 = -8
-14a = 7
a = -1/2
Step 4: Plug in <em>a</em> to find <em>b</em>
6(-1/2) - b = -5
-3 - b = -5
-b = -2
b = 2
Answer:
Step-by-step explanation:
Let's solve your equation step-by-step.
−
3
x
2
+
7
x
=
−
5
Step 1: Subtract -5 from both sides.
−
3
x
2
+
7
x
−
(
−
5
)
=
−
5
−
(
−
5
)
−
3
x
2
+
7
x
+
5
=
0
For this equation: a=-3, b=7, c=5
−
3
x
2
+
7
x
+
5
=
0
Step 2: Use quadratic formula with a=-3, b=7, c=5.
x
=
−
b
±
b
2
−
4
a
c
2
a
x
=
−
(
7
)
±
(
7
)
2
−
4
(
−
3
)
(
5
)
2
(
−
3
)
x
=
−
7
±
109
−
6
x
=
7
6
+
−
1
6
109
or
x
=
7
6
+
1
6
109
Only 2 forces are out of balance - the 22N and the 14N
So the resultant force is 22-14 = 8N.
2000 x 2 x 0.02 = 80
answer
interest will be $80
