AnswersPre-Algebra - MA3119 B-CRUnit Test

Unit Test — Unit test Answers

0 verified answers1 views
1
Free Preview

Which number is farthest from 2 on the number line?

A
StartRoot 2.1 EndRoot
Option A
B
StartRoot 2.4 EndRoot
Option B
C
StartRoot 2.5 EndRoot
Option C
D
StartRoot 2.9 EndRoot
Option D
2
Free Preview

How many repeating digits are in ?

Question illustration
A
1
B
2
C
3
D
4
3

A ladder that is 21 feet long is propped against a building. The bottom of the ladder was placed 4 feet from the base of the building. How high up on the building does the ladder reach? Round the answer to the nearest tenth of a foot.

A
4.1 feet
B
17.0 feet
C
20.6 feet
D
21.4 feet
4

Which is the correct classification of ?

Question illustration
A
irrational number, non-repeating decimal
B
irrational number, terminating decimal
C
rational number, terminating decimal
D
rational number, non-repeating decimal
5

Arnob may want to borrow his cousin’s tent, which is shown below.He needs to determine x, the center height of the tent, to determine if it will be large enough for his camping trip. What is the center height of this tent, to the nearest tenth of a foot?

Question illustration
A
4.1 feet
B
8.1 feet
C
9.8 feet
D
12.0 feet
6

Which is the decimal expansion of ?

Question illustration
A
ModifyingAbove 0.318 with bar
Option A
B
0.3ModifyingAbove 18 with bar
Option B
C
0.ModifyingAbove 318 with bar
Option C
D
0.31ModifyingAbove 8 with bar
Option D
7

Hassan used the iterative process to locate on the number line. Which best describes Hassan’s estimation?

Question illustration
A
Hassan is correct because
Option A
B
Hassan is correct because the point is on the middle of the number line.
C
Hassan is incorrect because is less than 0.4.
Option C
D
Hassan is incorrect because the point should be located between 0.1 and 0.2.
8

Which equation can be used to find the unknown length, a, in this triangle?

Question illustration
A
a squared + 15 squared = 17 squared
Option A
B
15 squared + 17 squared = a squared
Option B
C
a squared + 15 = 17 squared
Option C
D
a + 15 squared = 17 squared
Option D
9

The point is plotted on the number line. What whole number best approximates the value of x?

Question illustration
A
100
B
102
C
103
D
104
10

Sam said the square root of a rational number must be a rational number. Jenna disagreed. She said that it is possible that the square root of a rational number can be irrational. Who is correct and why?

A
Jenna is correct because all square roots are irrational numbers.
B
Sam is correct because all square roots of rational numbers are rational. An example is .
Option B
C
Jenna is correct because not all square roots are rational. An example is
Option C
D
Sam is correct because the properties of square roots state that the square root of a rational number is a rational number.
11

Tyree is determining the distance of a segment whose endpoints are A(–4, –2) and B(–7, –7).Step 1: Step 2: Step 3: Step 4: Step 5: Therefore, d = 2.Which best describes the accuracy of Tyree’s solution?

Question illustration
A
Tyree’s solution is accurate.
B
Tyree’s solution is inaccurate. In step 1, he substituted incorrectly.
C
Tyree’s solution is inaccurate. In step 2, he simplified incorrectly.
D
Tyree’s solution is inaccurate. In step 3, he added incorrectly.
12

Which is a perfect square?

A
6 Superscript 1
Option A
B
6 squared
Option B
C
6 cubed
Option C
D
6 Superscript 5
Option D
13

Ilya builds a slide that is 2.9 meters long. It is 1.5 meters above the ground. He wants to determine the distance from the bottom of the slide to the base of the ladder leading up to the slide. Which diagram represents this situation?

A
A triangle with side length 1.5 meters and hypotenuse 2.9 meters.
Option A
B
A triangle with side length 2.9 meters and hypotenuse 1.5 meters.
Option B
C
A triangle with side length 2.9 meters and hypotenuse 2.9 meters.
Option C
D
A triangle with side length 1.5 meters and hypotenuse 2.9 meters.
Option D
14

Ariel completed the work below to show that a triangle with side lengths of 9, 15, and 12 does not form a right triangle. Is Ariel’s answer correct?

Question illustration
A
No, Ariel should have added 122 and 152 and compared that to 92.
B
No, Ariel should have subtracted 122 from 92 and compared that to152.
C
No, Ariel should have added 92 and 122 and compared that to 152.
D
Yes, Ariel’s work is correct.
15

What is the length of segment GH?

Question illustration
A
units
Option A
B
8 units
C
units
Option C
D
12 units
16

In centimeters, what is the unknown length in this right triangle?

Question illustration
Answer not available
17

What square root best approximates the point on the graph?

Question illustration
A
StartRoot 5 EndRoot
Option A
B
StartRoot 15 EndRoot
Option B
C
StartRoot 28 EndRoot
Option C
D
StartRoot 53 EndRoot
Option D
18

Which expressions represent rational numbers? Check all that apply.

A
StartRoot 6 EndRoot + StartRoot 9 EndRoot
Option A
B
StartRoot 64 EndRoot + StartFraction 6 Over 11 EndFraction
Option B
C
StartRoot 36 EndRoot + StartRoot 21 EndRoot
Option C
D
StartRoot 16 EndRoot + StartRoot 169 EndRoot
Option D
E
17.ModifyingAbove 43 with bar + StartRoot 49 EndRoot
Option E
F
StartRoot 44 EndRoot + StartRoot 25 EndRoot
Option F
19

What is the length of the hypotenuse, x, if (20, 21, x) is a Pythagorean triple?

A
22
B
29
C
41
D
42
20

Which point best approximates?

Question illustration
A
A
B
B
C
C
D
D

Did you find these answers helpful?

More from this Course

Quiz
25 verified answers

Test

Quiz
25 verified answers

Test

Quiz
1 verified answers

Unit Test