68 ollies in a minute
30 seconds is half of a minute so you need to double both numbers so 30 seconds times 2 is 60 seconds or one minute and 34 times 2 is 68
Answer:
86 meters
Step-by-step explanation:
27+27+16+16=54+32=86 meters
Answer:
x = 12
Step-by-step explanation:
We can use the Cross Products Property.
9 / 12 = x / 16
12x = 9 * 16
x = 9 * 16 / 12 = 12
Answer:
The population density is 618.93 per square mile.
Step-by-step explanation:
It is given that,
No. of people, N = 70,000
The radius of a city's town hall, r = 6 miles
We need to find the population density. It can be calculated by the formula i.e. number of people divided by area of land such that,
![P=\dfrac{N}{A}\\\\P=\dfrac{N}{\pi r^2}\\\\P=\dfrac{70000}{\pi (6)^2}\\\\P=618.93\ \text{per square mile}](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7BN%7D%7BA%7D%5C%5C%5C%5CP%3D%5Cdfrac%7BN%7D%7B%5Cpi%20r%5E2%7D%5C%5C%5C%5CP%3D%5Cdfrac%7B70000%7D%7B%5Cpi%20%286%29%5E2%7D%5C%5C%5C%5CP%3D618.93%5C%20%5Ctext%7Bper%20square%20mile%7D)
So, the population density is 618.93 per square mile.
(2x^2+6x-11)-(5x^2-x+7)
Pretend that there is a -1 in front of the second bracket
-1(5x^2-x+7)=-5x^2+x-7
2x^2+6x-11-5x^2+x-7
2x^2-5x^2+6x+x-11-7 ( combine like terms)\
-3x^2+7x-18
Answer: d. -3x^2+7x-18