Answer:
<u>Mean = 6.8</u>
Step-by-step explanation:
<u>Given data set :-</u>
{14, 7, 2, 8, 3}
<u>To find :-</u>
Mean
<u>Solving :-</u>
Take sum of given data and divide by number of data pieces.
=> 14 + 7 + 2 + 8 + 3 / 5
=> 34 / 5
=> 6.8
<u>Solution :-</u>
<u>Mean = 6.8</u>
Answer:
(5r + 6)(5r² + 4)
Step-by-step explanation:
Given
25r³ + 30r² + 20r + 24 ( factor the first/second and third/fourth terms )
= 5r²(5r + 6) + 4(5r + 6) ← factor out (5r + 6) from each term
= (5r + 6)(5r² + 4)
Madison created two functions.For Function A, the value of y is two less than four times the value of x.
The table below represents Function B.
-3,-9
-1,5
1,-1
3,3
In comparing the rates of change, which statement about Function A and Function B is true?
A.
Function A and Function B have the same rate of change.
B.
Function A has a greater rate of change than Function B has.
C.
Function A and Function B both have negative rates of change.
D.
Function A has a negative rate of change and Function B has a positive rate of change.
C is correct
If the sides of the rectangle are a and b,
Area=ab=3200^2
If the side with a ft cost $2/ft and side with bft costs $2/ft
Then,
Cost = 2*2*a+2*1*b=4a+2b
At minimum cost (or critical point), the derivative of cost =0
From area, b=3200/a
Using cost equation
C=4a+2*3200/a=4a+6400/a
First derivative with respect to a;
C'(a)=4-6400/a^2=0
Then, a=+/-40 The negative value is rejected. Therefore, a=40 ft and b=3200/40= 80 ft.
Therefore, a=40 ft and b=80 ft to minimize the fencing cost.
Divide 50 4/5 by 4
254/5
divide the top by 4
254/4
63.5/5
(12.7 miles per hour)