C 3*3 = 9 6*6=36 and 36 plus 9 is 45 and 9*9 = 81 so it’s not equal and not right.
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
That depends on the value of 'x', and if 'x' changes, then the value
of that expression immediately changes.
All you can say is that whatever 'x' is at this moment, that expression
is 76 more than triple the value of 'x'.
Amswer is 10.25, or 10.2469076...
N x 4 = 9- 2n
If you are trying to make this into a number equation, this is how you do it or you can write it as 4n=9-2n
