I cannot help you with the first draging part since it needs to be done form your device.
But I can help you with the expression. Anything to the power of 0 power is equal to 1. Therefore:

Hope it helped,
BioTeacher101
7 + 28n + 4
28n + (7 + 4)
28n + 11
Answer:
D. 220.16 Square feet
Step-by-step explanation: The shaded area is the space in the square not filled by the circle. So we need to find the area of the circle. The formula for area of a circle is
. So we fill in this equation with the information we already know:

Simplify the exponents
Multiply

So now we know the area of the circle we have to find the area of the square because the circle is inside the square. It is a simple
which is 1,024. Since we are looking for the shaded area we will subtract the area of the circle from the area of the square because the circle is not shaded.
1024-803.94= 220.16 square feet
Answer:
B
Step-by-step explanation:
2(x)+4=16
2(6)+4=16
12+4=16
Answer:
Standard deviation of a normal data distribution is a measure of data dispersion.
Step-by-step explanation:
Standard deviation is used to measure dispersion which is present around the mean data.
The value of standard deviation will never be negative.
The greater the spread, the greater the standard deviation.
Steps-
1. At first, the mean value should be discovered.
2.Then find out the square of it's distance to mean value.
3.Then total the values
4.Then divide the number of data point.
5.the square root have to be taken.
Formula-
SD=
Advantage-
It is used to measure dispersion when mean is used as measure of central tendency.