Chapter 11 review, chapter 12.3
34. y=x3+5
y = [(x+h)3+5]-(x3+5)/h
= x3+3x2h+3xh2+h3+5-x3-5/h
= 3x2h+3xh2+h3/h
= (3x2+3xh+h2)= 3x2
36. y = 8 - x2 ; x =1
Let f(x)=y
f (1) = 8 12 = 7
f(x)= -2
the slope of the tangent line at (1,7 ) is
f (1) = -2 (1) = -2
64
MBA 501: Module 6 Evaluate
1. Classify each of the following as nominal, ordinal, interval or ratio data.
a)
The time required to produce each tire on an assembly line. ratio
b) The number of quarts of milk a family drinks in a month. ratio
c)
The ranking
Homework week 5
Section 8.1:
14. Since -2 is and element of E and not A, E A
22. The set cfw_red, yellow, blue, black, white has 5 elements,
so it has 25 = 32 Subsets
30. cfw_2, 1, 7 cfw_1, 5, 9= cfw_1
34. cfw_1, 2, 4 cfw_1, 2, 4= cfw_1, 2, 4 and cfw_1, 2
Borup
Section 6.1
2. (2, -.5)
Equation 1 is true
.5(2)+8(-.5)= -3
1+(-4)= -3
Equation 2 is false
2+5(-.5)= -5
2+(-2.5)= -5
(2, -.5) is not a solution to this system of equations?
4.
x + y= 7
x- 2y= -5
solve for x
x+7-y
substitute x=7-y into equation 2
7-y
Homework
10.4:
10. The area is .4826 - .23897= .2437=24.37%
12. The area is .4485 - .3599= .0885=8.86%
14. The area is .4982- .1950=.3032=30.32%
16. The closest match is z=2.33. Since z < 0, looks like z would be
-2.33.
18. The table gives an area of .248
Chapter 3 review
8. (x)=3-4x
a. (6)=3-4(6)= -21
b. (-2)=3-4(-2)=3+8=11
c. (p)=3-4p
d. (r+1)=3-4(r+1)= -1 -4r
10. (x)=8-x-x2
a. (6)=8-6-36=-34
b. (-2)=8 (-2)-(-2)2=8+2-4=6
c. (p)=8-p-p2
d. (r+1)=8-(r+1)-(r+1)2
=8-r-1-(r2+2r+1)
=8-r-1-r2-2r-1
=-r2-3r+6
16.
10.1
6.
Interval
0-499
500-599
1000-1499
1500-1999
2000-2499
2500-2999
3000-3499
frequency
7
10
6
1
5
0
1
22. right skewed
24. Normal
30. a) The distribution would be right skewed
b) there are eight states that produce less than 10 million punds
9.1
2. There are 36 outcomes. To get each probability we count the number
of ways each some can be obtained then divide by 36.
Sum
P(x)
Sum
P(x)
Sum
P(x)
23
4
5
6
11115
36 18 12 9
36
7
8
9 10 11
1
511
1
6
36 9 12 18
12
1
36
24. E(x) = 0(.285) + 1(.416) +