Answer:
13.) 314.2 in²
15.) 181.5 ft²
Step-by-step explanation:
The area of a circle is found using the equation:
A = πr²
In this equation, "π" represents the number pi (3.14....) and "r" represents the radius (half the diameter).
For 13.), you have been given the radius. Thus, you can substitute it into the equation and solve for "A".
A = πr²
A = π(10)²
A = π x (100)
A = 314.2 in²
For 15.), you have been given the diameter. To find the radius, you need to divide this value by 2. Once you find the radius, you can plug it into the equation and simplify like above.
diameter = 15.2 ft
radius = 7.6 ft
A = πr²
A = π(7.6)²
A = π x (57.76)
A = 181.5 ft²
<span>This is a matter of knowing the formulas involving the binomial distribution:
Mean = n*p = 125*0.46 = 57.5
Variance = n*p*(1-p) = 125*0.46*(1-0.46) = 125*0.46*0.54 = 31.05
Standard Deviation = sqrt(Variance) = sqrt(31.05) = 5.572252686</span>
Answer:
2. x^2 -3x
-x 3
3. x^2 7x
-2x -14
Step-by-step explanation:
Im pretty sure this is right, but I am so sorry if it's not tho
Answer:
1980 yards
Step-by-step explanation:
We need to convert 1 1/8 miles into yards. For doing so we can conclude the following and use the information gathered:
1 mile = 1760 yards.
1/8 mile = 220 yards
In that case, we will add the two shown above together to find the total as well as our answer.
1760 + 220 = 1980
Thusly, there are 
yards in 1 1/8 miles.
Hope this helps!
