Answer:
The square cake is larger by 31 in^2
Step-by-step explanation:
A round cake has a circular area on top.
We need to find the radius
d= 2r
8 = 2r
r=4
The area of the circle is pi r^2
A = 3.14 * 4^2
A = 3.14 *16
= 50.24
The area of the square cake is
A =s^2
A = 9^2
A = 81
The square cake is larger
The difference is Asquare - A round
81 -50.24
30.76
Which is close to 31 in ^2
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
3
5
,
4
5
)
,
(
−
7
25
,
−
24
25
)
(
3
5
,
4
5
)
,
(
-
7
25
,
-
24
25
)
Equation Form:
x
=
3
5
,
y
=
4
5
x
=
3
5
,
y
=
4
5
x
=
−
7
25
,
y
=
−
24
25
Answer: 0.0971
Step-by-step explanation:
Given : Sample size : 
The percent of people are afraid of flying 
Thus the proportion of people are afraid of flying 
We know that the formula to find the standard deviation of the distribution of sample proportions is given by :-

Hence, the standard deviation of the distribution of sample proportions = 0.0971
Answer:
5.2
Step-by-step explanation:
Answer:

Step-by-step explanation:
we have the ordered pairs
(0,0) and (-1/2,-3)
In this problem we have a proportional relationship, because the line passes through the origin
A proportional variation can be expressed in the form
or 
Find the value of the constant of proportionality k
For x=-1/2, y=-3
----> 
therefore
The linear equation is equal to
substitute the value of k
