DONTE PICOU
MATH EXAM 1
The qualitive numbers will be rating, and MPAA. The quantitive numbers will be the
budget, gross, and length.
Ratio level of measurement
The mean is 123.18, and the deviation is 101.53
Yes, there are a couple of outliers, they are
WEEK7
68. A plane with airspeed of 450 miles per hour is flying in the direction N35degreesW.
vector
i
vector
j
i+
j
There is no way to get the exact values, so we punch those into a
calculator and get:
rounded to tenths:
i+
j
52.
= 3(180) + 2(450) = 540
WEEK9
Solve questions 36 and 50 of EXERCISE SET 11.6 on pages 1028-1029 of the textbook.
36.
For the first letter, we have two choices: W or K.
For the second, third and fourth letters, we have 26 choices: A - Z. Each of these are
independent, so the mult
Week 10
Solve questions 28 and 3136 of EXERCISE SET 11.7 on page 1043 of the
textbook.
28. 30C6 = 593,775 different 6-number sets.
Prob of winning with 1 ticket = 1/593,775
Prob of winning with 100 tickets = 100/593,775 = 1/5938
FIND THE PROBABILITY THAT
WEEK5
51.In
triangle ABC
B = 84.7; A = 50; c = 171 feet. Find a.
C = 180 - (50 + 84.7)
C = 45.3
Using the Sine Rule
a / sin(50) = 171 / sin(45.3)
a = 171 sin(50) / sin(45.3)
a = 184.3 feet
The distance, to the nearest tenth of a foot, from the base to the
Week6
Tasks:
84. A full circle (in radians) is 2 (that's the circumference of a unit circle). So take 5/6 of
that:
2 * 5/6
= (10/6)
= (5/3)
= 5/3
And the distance from the center is 6 units.
Answer:
(5/3, 6)
34. 7(cos 3pi/2 + i sin 3pi/2)
= 7(0 - i)
= -7i
Week 8
11.1
70. a. Use the numbers given in the graph to find and interpret:
-> 5
1/5 a[i]
-> i = 1
2.9+3.6+4.5+4.9+5.5
21.4 / 5 = 4.28 average spent.
b. The finite sequence whose general term is a_n=0.65n+2.3, where n=1,2,3,4,5, models
spending for consu
Week 4
105.
A = P(1 + r/n)^nt
plugging in,
20,000 = 12,500(1 + .00575/4)^4t
1.01435^4t = 1.6
taking logs of both sides,
4t log 1.01435 = log 1.6
4t = log 1.6 / log 1.01435 = 32.987
t = 8.24.
= 8.2 years
113.
A) 2007 is 5 years after 2002, so x = 5. Just p