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Let’s check out your problem:
What is the value of
8
a
+
4
8a+4
8
a
+
4
when
a
=
5
a=5
a
=
5
?
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Math Problems
Precalculus
Determine the direction of a vector scalar multiple
Full solution
Q.
What is the value of
8
a
+
4
8a+4
8
a
+
4
when
a
=
5
a=5
a
=
5
?
Substitute 'a' with
5
5
5
:
Step
1
1
1
: Substitute the value of
a
a
a
into the expression.
\newline
Reasoning: We need to replace 'a' in the expression
8
a
+
4
8a+4
8
a
+
4
with
5
5
5
.
\newline
Calculation:
8
(
5
)
+
4
=
40
+
4
=
44
8(5) + 4 = 40 + 4 = 44
8
(
5
)
+
4
=
40
+
4
=
44
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