Sciences Mathematics College Math College Math Exams Combinations, Odds, Annual Rates, Circumference, And Volume
How many ways can a person select four books, two CDs, and one DVD from ten books, twenty CDs, and five DVDs?
A) 8,000
B) 405
C) 6,724,520
D) 199,500
Explanation:
The area under a normal distribution curve that lies within one standard deviation of the mean is approximately _____.
A) 95%
B) 99.7%
C) 68%
D) 65%
Explanation:
See this page for a review of the 68-95-99.7 rule.
Find the area under the normal distribution curve to the right of z = –3.5.
A) 0.48
B) –0.48
C) 0.98
D) 0.02
Explanation:
The average amount customers at a certain grocery store spend yearly is $671.70. Assume the variable is normally distributed. If the standard deviation is $75.53, find the probability that a randomly selected customer spends between $599.19 and $883.94.
A) 0.830 = 83.0%
B) 0.166 = 16.6%
C) 0.953 = 95.3%
D) 0.154 = 15.4%
Explanation:
Find the missing value.
A) 5%
B) 3.5%
C) 4%
D) 4.5%
Explanation:
A passbook savings account has a nominal rate i. The interest is compounded monthly. If the account’s effective annual rate is 6% find i.
A) 5.02%
B) 5.45%
C) 5.76%
D) 5.84%
Explanation:
You bought a luxury condominium two years ago for $500,000 and put 5% down on a 30-year fixed mortgage at 6.5%. No points were charge at the time of closing. Calculate the unpaid balance on the mortgage after two years.
A) $461,025.56
B) $462,025.56
C) $463,025.56
D) $464,025.56
Explanation:
The triangles in the figure below are similar. Use the proportional property of similar triangles to find the measure of x.
A) 34.2 km
B) 29.2 km
C) 25.2 km
D) 19.2 km
Explanation:
Find the circumference of the circle. Use p = 3.14.
A) 113.04 cm
B) 18.84 cm
C) 56.52 cm
D) 37.68 cm
Explanation:
= 2 x 3.14 x 6 = 37.68cm
Identify the polygon and find the sum of the measures of the angles.
A) Hexagon; 900°
B) Heptagon; 900°
C) Heptagon; 720°
D) Hexagon; 720°
Explanation:
Find the volume of a sphere whose surface area is same as the surface area of a cube with one cubic meter volume.
A) 1.382 cubic meter
B) 0.724 cubic meter
C) 1.910 cubic meter
D) 1.000 cubic meter
Explanation:
