A = b x h x 1/2
a = 8 x 8 x 1/2
a = 8 x 4
a = 32 m^2
Step-by-step answer:
Angle ECF = 110 = angle of intercepted (minor) arc EF.
The inscribed angles (angles EDF and EHF) are equal to half the angle of the inscribed arc, namely 110/2 = 55 degrees.
For your information, an inscribed angle is an angle with its vertex on (circumference of) the circle, formed by two intersecting chords, with a base on the inscribed arc.
Answer:
So, we purchased 9 songs and 4 games for 20.1$.
So, we purchased 10 songs and 6 games for 25.5$.
So, we purchased 10 songs and 10 games for 33.9$.
Step-by-step explanation:
We have receive a $35 gift certificate from an online retailer that sells digital music and games. Each song costs $1.29 and each game costs $2.10.
First case:
![9\cdot 1.29=11.61\\\\4\cdot 2.10=8.4\\\\8.4+11.61=20.01](https://tex.z-dn.net/?f=9%5Ccdot%201.29%3D11.61%5C%5C%5C%5C4%5Ccdot%202.10%3D8.4%5C%5C%5C%5C8.4%2B11.61%3D20.01)
So, we purchased 9 songs and 4 games for 20.1$. We have 13 items for 20.1$.
Second case:
![10\cdot 1.29=12.9\\\\6\cdot 2.10=12.6\\\\12.9+12.6=25.5](https://tex.z-dn.net/?f=10%5Ccdot%201.29%3D12.9%5C%5C%5C%5C6%5Ccdot%202.10%3D12.6%5C%5C%5C%5C12.9%2B12.6%3D25.5)
So, we purchased 10 songs and 6 games for 25.5$. We have 16 items for 25.5$.
Third case:
![10\cdot 1.29=12.9\\\\10\cdot 2.10=21\\\\12.9+21=33.9](https://tex.z-dn.net/?f=10%5Ccdot%201.29%3D12.9%5C%5C%5C%5C10%5Ccdot%202.10%3D21%5C%5C%5C%5C12.9%2B21%3D33.9)
So, we purchased 10 songs and 10 games for 33.9$. We have 20 items for 33.9$.
what is the standard deviation and variance of 10, 10, 10, 10, 13, 20, 23, 32, 32, 32, 32, 47, 50, 53, 60, 60, 63, 72, 72, 72, 7
Archy [21]
Answer:
bro/sis through this solution u can solve ur values
Step-by-step explanation:
To calculate the variance, you first subtract the mean from each number and then square the results to find the squared differences. You then find the average of those squared differences. The result is the variance. The standard deviation is a measure of how spread out the numbers in a distribution are.
I hope this will help you