AnswersAISD 26-27 Geometry CR BSolving for Angle Measures of Right Triangles

Solving for Angle Measures of Right Triangles — Unit test Answers

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21
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The two-way table shows the medal count for the top-performing countries in the 2012 Summer Olympics.Which statement is true?

Question illustration
A
The probability that a randomly selected silver medal was awarded to Great Britain is .
Option A
B
The probability that a randomly selected medal won by Russia was a bronze medal is .
Option B
C
The probability that a randomly selected gold medal was awarded to China is .
Option C
D
The probability that a randomly selected medal won by the United States was a silver medal is .
Option D
22
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A department store is hiring for the positions of manager, associate manager, and assistant manager. If 15 people have applied for all the positions and are equally qualified for each position, in how many ways can the positions be filled?

A
45
B
210
C
455
D
2,730
23

A bag contains 10 red marbles, 15 yellow marbles, 5 green marbles, and 20 blue marbles. Five marbles are drawn from the bag.What is the approximate probability that exactly two of the five are blue?

1
1%
4
4%
3
36%
4
40%
24

A standard deck of 52 playing cards contains 13 cards in each of four suits: diamonds, hearts, clubs, and spades. Two cards are chosen from the deck at random.What is the approximate probability of choosing one club and one heart?

0
0.0588
0
0.0637
0
0.1176
0
0.1275
25

Which expression represents ?

Question illustration
A
mc006-2.jpg
Option A
B
mc006-3.jpg
Option B
C
mc006-4.jpg
Option C
D
mc006-5.jpg
Option D
26

Bart found 20 quadrilaterals in his classroom. He made a Venn diagram using the properties of the quadrilaterals, comparing those with four equal side lengths (E) and those with four right angles (R).

Question illustration
A
25%
B
33%
C
40%
D
67%
27

Alejandro surveyed his classmates to determine who has ever gone surfing and who has ever gone snowboarding. Let A be the event that the person has gone surfing, and let B be the event that the person has gone snowboarding.

Question illustration
A
A and B are independent events because P(A∣B) = P(A) = 0.16.
B
A and B are independent events because P(A∣B) = P(A) = 0.75.
C
A and B are not independent events because P(A∣B) = 0.16 and P(A) = 0.75.
D
A and B are not independent events because P(A∣B) = 0.75 and P(A) = 0.16.
28

Will surveyed students at his school about whether they have ever gone snowboarding and whether they own a skateboard. He found that 35 of the 99 students who own a skateboard have snowboarded. Also, there were 13 students who have snowboarded but do not own a skateboard, and 147 students who have never gone snowboarding and do not own a skateboard.

A
A 4-column table has 3 rows. The first column has entries skateboard, no skateboard, total. The second column is labeled have snowboarded with entries 35, 64, 99. The third column is labeled never snowboarded with entries 13, 147, 160. The fourth column is labeled Total with entries 48, 211, 256.
Option A
B
A 4-column table has 3 rows. The first column has entries skateboard, no skateboard, total. The second column is labeled have snowboarded with entries 35, 13, 48. The third column is labeled never snowboarded with entries 99, 147, 246. The fourth column is labeled Total with entries 134, 160, 294.
Option B
C
A 4-column table has 3 rows. The first column has entries skateboard, no skateboard, total. The second column is labeled have snowboarded with entries 35, 13, 48. The third column is labeled never snowboarded with entries 64, 147, 211. The fourth column is labeled Total with entries 99, 160, 259.
Option C
D
A 4-column table has 3 rows. The first column has entries skateboard, no skateboard, total. The second column is labeled have snowboarded with entries 35, 99, 134. The third column is labeled never snowboarded with entries 13, 147, 160. The fourth column is labeled Total with entries 48, 246, 294.
Option D
29

James surveyed people at school and asked whether they bring their lunch to school or buy their lunch at school more often. The results are shown below.Bring lunch: 46 males, 254 femalesBuy lunch: 176 males, 264 females

A
P(buys lunch | male) = P(male) = 0.4.
B
P(male | buys lunch) = P(male) = 0.3.
C
P(buys lunch | male) = 0.3 and P(male) = 0.4.
D
P(male | buys lunch) = 0.4 and P(male) = 0.3.
30

A 5-column table has 4 rows. The first column has entries A, B, C, Total. The second column is labeled X with entries 10, 110, 60, 180. The third column is labeled Y with entries 80, 44, 59, 183. The fourth column is labeled Z with entries 61, 126, 110, 297. The fifth column is labeled Total with entries 151, 280, 229, 660.

Question illustration
A
Z and B are independent events because P(Z∣B) = P(Z).
B
Z and B are independent events because P(Z∣B) = P(B).
C
Z and B are not independent events because P(Z∣B) ≠ P(Z).
D
Z and B are not independent events because P(Z∣B) ≠ P(B).
31

Find P(C|Y) from the information in the table.

Question illustration
A
0.4
B
0.5
C
0.7
D
0.8
32

two

Question illustration
P
P(A|C) =
Option P
P
P(C|B) =
Option P
P
P(A) =
Option P
P
P(C) =
Option P
P
P(B|A) =
Option P
33

Which probabilities are correct? Select two options.

A
P(A|C) =
Option A
B
P(C|B) =
Option B
C
P(A) =
Option C
D
P(C) =
Option D
E
P(B|A) =
Option E
34

The two-way table shows the ages of the players on different soccer teams.Which statement is true?

Question illustration
A
The probability that a randomly selected player on Team A is 8 years old is .
Option A
B
The probability that a randomly selected 8-year-old player is on Team C is .
Option B
C
The probability that a randomly selected player on Team C is 10 years old is .
Option C
D
The probability that a randomly selected 10-year-old player is on Team B is .
Option D
35

For the soccer banquet, the players and their family members selected their favorite main dish and side dish. Of the 39 people who chose chicken as the main dish, 18 wanted potatoes. Of the 32 people who chose rice as a side dish, 6 chose fish as a main dish. A total of 8 people chose a vegetarian meal with potatoes, and a total of 10 people chose fish as their main dish.

A
A 5-column table has 3 rows. The first column has entries Rice, Potatoes, Total. The second column is labeled Chicken with entries 18, 21, 39. The third column is labeled Fish with entries 4, 6, 10. The fourth column is labeled Vegetarian with entries 8, 5, 13. The fifth column is labeled total with entries 30, 32, 62.
Option A
B
A 5-column table has 3 rows. The first column has entries Rice, Potatoes, Total. The second column is labeled Chicken with entries 21, 18, 39. The third column is labeled Fish with entries 6, 4, 10. The fourth column is labeled Vegetarian with entries 5, 8, 13. The fifth column is labeled total with entries 32, 30, 62.
Option B
C
A 5-column table has 3 rows. The first column has entries Rice, Potatoes, Total. The second column is labeled Chicken with entries 14, 18, 32. The third column is labeled Fish with entries 6, 4, 10. The fourth column is labeled Vegetarian with entries 19, 8, 27. The fifth column is labeled total with entries 39, 30, 69.
Option C
D
A 5-column table has 3 rows. The first column has entries Rice, Potatoes, Total. The second column is labeled Chicken with entries 18, 14, 32. The third column is labeled Fish with entries 4, 6, 10. The fourth column is labeled Vegetarian with entries 8, 19, 27. The fifth column is labeled total with entries 30, 39, 69.
Option D
36

Information about the students at Jackson High School is shown in the table.

Question illustration
A
Out of the 352 eleventh graders at the school, 173 of them are girls.
B
Out of the 511 boys at the school, 150 of them are tenth graders.
C
Out of the 523 tenth graders at the school, 173 of them are boys.
D
Out of the 376 girls at the school, 182 of them are eleventh graders.
37

Find P(Y|B) from the information in the table.

Question illustration
A
0.2
B
0.3
C
0.4
D
0.5
38

Twenty-five bakery customers were surveyed to determine if they like cake or pie. The results are shown in the Venn diagram.

Question illustration
A
Two-sevenths
Option A
B
Two-fifths
Option B
C
Four-sevenths
Option C
D
Four-fifths
Option D
39

Information about a shipment of mirrors to a local store is shown.

Question illustration
A
68
B
78
C
164
D
208
40

Which statements are true? Select three options.

A
Milk was requested for 16 of the large-sized meal orders.
B
Soda was requested for 280 of the kids’ meal orders.
C
A juice box was requested for 82 of the regular-sized meal orders.
D
Sixty-three of the orders of soda came with a regular-sized meal.
E
A total of 124 large-sized meals were ordered.

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