Answer:
56.6mm
Step-by-step explanation:
Take the radius and double it to get the diameter
9mm * 2 = 18mm
Multiply the diameter by pi to get the circumference of the circle
18mm * 3.1415 = 56.547mm
Answer:
A = 18 cm²
Step-by-step explanation:
The volume (V) of a prism is calculated as
V = area of base (A) × height
Here V = 216 cm³ and h = 12 cm , then
A × 12 = 216 ( divide both sides by 12 )
A = 18 cm² ← area of base
Answer: Close. Your observation is correct. When you see that the difference between two numbers in the sequence is a perfect square, you are looking at a pyramidal sequence
1² = <u>1 </u> top of pyramid
1 + 2² = <u>5</u> total in top 2 layers
1 + 2² + 3² = <u>14</u> total in top 3 layers
1 + 2² + 3² + 4² = <u>30</u> total in the top 4 layers.
1 + 2² + 3² + 4² + 5² = <u>55</u> total in the top 5 layers.
Layer 6 is 6² more, 91
Layer 7 is 7² more so, 140
I think you got it.
Step-by-step explanation: The numbers are like when you keep adding the layers in a pyramid, and the next number is the total of the previous layers plus the square of the next layer number.
Answer=9.11
When rounding to the nearest hundredth, we need to look to the number in the thousandths place.
9.105
If the number is 5 or greater, we round up. If the number is 4 or less, we round down. Since the number is 5, we round up. 9.105 becomes 9.11