What is the area of a circle with a diameter of 16?
1 answer:
The formula to find the area of a circle is:
Step 1:
We will be dividing the diameter by two to find the radius.
16 ÷ 2 = 8
Step 2:
We will find what 8 squared is.
8*8= 64
Step 3:
We will be inputting this number is our formula.
Step 4:
We still need to multiply
to find our area.
= 201.0619298297467673
Step 1:
We will be dividing the diameter by two to find the radius.
16 ÷ 2 = 8
Step 2:
We will find what 8 squared is.
8*8= 64
Step 3:
We will be inputting this number is our formula.
Step 4:
We still need to multiply
Step 5:
We will round this to the nearest whole number.
Our rounded number is 201
Our answer:
or
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Answer:
He subtracted -5 from both sides, not -6
Step-by-step explanation:
The inequality that we have to solve in this problem is
To solve the inequality, we proceed as follows:
1)
First, we isolate the term in x. To do that, we add -6 on both sides of the inequality, and we find:
So, this is now the new inequality.
2)
Then, we divide both sides of the equation by 5; we get:
3)
Finally, we change sign to the inequality, so we get:
So, the student's error is that he subtracted -5 from both sides, not -6.