Answer:
Step-by-step explanation:
The formula for the area of a sector is
where θ is the measure of the central angle and r is the radius.
Our central angle is a right angle and the radius is 4, so filling in the formula looks like this:
and
![A=\frac{1}{4}*\pi (16)](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D%7B4%7D%2A%5Cpi%20%2816%29)
16 divides by 4 evenly, so
A = 4π.in²
If we multiply 4 by the value of π and then round, that number, to the nearest hundredth, is
A = 12.57 in²
Answer:
15 to 27 (which is equal to 5:9)
Step-by-step explanation:
The ratio 15 to 12 indicates that there is a total of 27 people in the classroom (15+12). So, if you want boys to total students, it's 15 to 27.
You can divide each of these by 3 to simplify it and get 5:9.
Answer:
39
Step-by-step explanation:
Are of rectangle -Area of triangle
= 45 - 6
=39
Answer:
254
Step-by-step explanation:
x-39=215
215+39=x
215+39=254
Not difference of cubes since it is 2nd degree
not difference of squares since it is plus
not sum of cubes because 2nd degreee
answer is square of binomial (why do we even need this property, oh well)
C