Angles and Measurements
Identify the degree measure;
Answer - 210 degrees (180 + 30)
Using what you know about special right triangles, what is the value of y?
Answer - 8
1/2 times 16
What are the dimensions of this matrix?
Answer - 2 x 4
What percent of data is between the minimum and the 3rd quartile in a data set?
Answer - 75%
If you were to solve for side EF, would you need to use law of sines, law of cosines, or SOHCAHTOA?
Answer - Law of cosines, you're using all three sides and there is no 90 degree angle.
Convert the degree measure 330 into radians.
Answer -
(11pi)/6
pi/180 times 330
Using what you know about special right triangles, what is the value of side v?
Answer - 8
(8root. 2) / root . 2
If you were to add a 4 x 3 matrix to a 3 x 4 matrix, what would the resulting dimensions be?
Answer - Not possible
What is the mode of the data set?
9, 14, 12, 11, 6, 12, 8, 19, 15, 4, 14, 2
Answer - 12 and 14
What is the amplitude of this wave?
Answer - 1.5 (half of 3)
Convert the radian measure
(4pi)/3
into degrees.
Answer - 240 degrees
4/3 times 180
What is the value of x?
Answer - 6.76
tan 46 = 7/x
If you were to multiply a 2 x 4 matrix by a 4 x 2 matrix, what would the resulting dimensions be?
Answer - 2 x 2
If a data set is skewed right, which of the following would have to be true?
a) The mean would be greater than the mode.
b) The mean would be greater than the median.
a) The median would be greater than the mode.
a) The median would be greater than the mean.
a) The mode would be greater than the mean.
a) The mode would be greater than the median.
Answer - b) The mean would be greater than the median.
What is another name for the median in the 5-number summary?
Answer - 2nd Quartile
Find the length of the arc;
Answer - 60.5 feet
315/360 times (2pi11)
Find the missing angle;
Answer - 35.7 degrees
sin x = 14/24
What is the determinant of this matrix?
Answer - 25 (30 - 5)
Calculate the IQR of the data set;
75, 86, 54, 55, 90, 84, 64, 71
Answer - 25.5 (85 - 59.5)
What is the period of this wave?
Answer -
pi / 2
Find the area of the sector;
Answer - 11.8 square meters
150/360 times 9pi
Find the measure of angle C;
Answer - 53.8 degrees
sin C / 21 = sin88/26
Use your calculator to find the determinant of the matrix below;
Answer - 2,098
The mean weight of NFL players is normally distributed with a mean of 245 lbs with a standard deviation of 35 pounds. What percent of players weight more than 300 lbs?
Answer - 5.8%
z = 1.57
1 - 0.94179 = 0.05821
Answer;
(6-8, 2-(-5))