The answer is X = 5
See the attached picture for the solution:
Answer:
267.9 
Step-by-step explanation:
volume of a circle = 4/3 * π *
=4/3 *3.14 *
=12.56/3 *64
=803.84/3
=267.94
=267.9 
Answer:
B) identity property of addition.
Step-by-step explanation:
Given:
The statement given is:

Here, we observe that 10 is added to a giving the number 10 itself as the answer. So, we know of a property which says that when 0 is added to a number, the result is the number itself. This property is called identity property of addition.
So, the value of
must be 0 because on adding
to 10, we are getting the number 10 only. So, the above statement is an example of identity property of addition.
Let's solve your equation step-by-step.
84
=
42
+
x
3
Step 1: Simplify both sides of the equation.
84
=
42
+
x
3
84
=
42
+
1
3
x
84
=
1
3
x
+
42
Step 2: Flip the equation.
1
3
x
+
42
=
84
Step 3: Subtract 42 from both sides.
1
3
x
+
42
−
42
=
84
−
42
1
3
x
=
42
Step 4: Multiply both sides by 3.
3
*
(
1
3
x
)
=
(
3
)
*
(
42
)
x
=
126
Answer:
x
=
126
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