Answer: 6200pi feet
Step-by-step explanation:
The circumference of a circle is the diameter*pi.
Therefore each circle around the park = 1550 pi feet.
Since he has to walk around the park 4 times, the total distance he walks is 1550 pi feet*4 = 6200pi feet
Answer:
Interior angle of quadrilateral is 360
Sum of the two known angles 222
The sum of the other two is 360-222=138
Ratio 5:18
A=5/23*138=30
B=18/23*138=108
Step-by-step explanation:
Ok. To convert anything into anything else you do something very very simple. Divide what you want...by what you have. For example, if I have 15 liters of water, I'm going to multiply by gallons over liters. Multiply the measurement given by what you want, then divide that by what you have.
You take the higher unit and make that 1, then however many of the other units you can fit and that's the other number. That can become 1 gallon / 3.79 liters, or 30m / 3000cm, etc.
So you have 15 liters, you want it in gallons, and it takes four gallons per liter:
15 liters x 1 / 3.79
= 4 gallons (3.9577836 gallons unrounded)
This works because you are dividing the measurement given by how many units of that measurement it takes to fit in another measurement. However, I prefer this method because it makes it easier to figure out when to multiply into smaller units, or divide to get bigger units.
How to convert: measurement x want / have
Answer: B (-2)
Step-by-step explanation:
[log base b of a = c] turns into [b^c = a]
You have log base 5 of 1/25 = ?, so it turns into 5^? = 1/25
This part is sort of guess and check, but we can look at it to find the answer pretty easily. First, it's 1/n, so we should use a negative power: 5^-1 = 1/5
In addition to being in the denominator, it's 25, which is 5^2.
So, if we want to put it in a reciprocal as well as square it, we can use -2:
5^(-2) = 1/(5^2) = 1/25
Since -2 (B) is the exponent we place on 5 to get 1/25, it is also the answer to log base 5 of 1/25.
