AnswersDHS Algebra 2 VAdding and Subtracting Radicals

Adding and Subtracting Radicals Answers

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1
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Which of the following is a like radical to ?

Question illustration
A
x (RootIndex 3 StartRoot 5 EndRoot)
Option A
B
StartRoot 5 y EndRoot
Option B
C
3 (RootIndex 3 StartRoot 5 x EndRoot)
Option C
D
y StartRoot 5 EndRoot
Option D
2
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What is the simplified form of the following expression?

Question illustration
A
Negative 5 (RootIndex 3 StartRoot 2 x EndRoot)
Option A
B
5 (RootIndex 3 StartRoot x EndRoot)
Option B
C
RootIndex 3 StartRoot 2 x EndRoot minus 6 (RootIndex 3 StartRoot x EndRoot)
Option C
D
Negative (RootIndex 3 StartRoot 2 x EndRoot) minus 6 (RootIndex 3 StartRoot x EndRoot)
Option D
3

The formula gives the length of the side, s, of a cube with a surface area, SA. How much longer is the side of a cube with a surface area of 180 square meters than a cube with the surface area of 120 square meters?

Question illustration
A
m
Option A
B
m
Option B
C
m
Option C
D
m
Option D
4

What is the following sum?

Question illustration
A
6 StartRoot 10 EndRoot
Option A
B
8 StartRoot 10 EndRoot
Option B
C
6 StartRoot 5 EndRoot
Option C
D
8 StartRoot 5 EndRoot
Option D
5

What is the following sum?

Question illustration
A
14 (RootIndex 6 StartRoot x EndRoot)
Option A
B
14 (RootIndex 6 StartRoot x squared EndRoot)
Option B
C
14 RootIndex 3 StartRoot x EndRoot)
Option C
D
14 (RootIndex 3 StartRoot x squared EndRoot)
Option D
6

Which of the following is a like radical to ?

Question illustration
A
4 (RootIndex 3 StartRoot 7 x EndRoot)
Option A
B
StartRoot 7 x EndRoot
Option B
C
x (RootIndex 3 StartRoot 7 EndRoot)
Option C
D
7 StartRoot x EndRoot
Option D
7

What is the following difference?

Question illustration
A
Negative 3 a b (RootIndex 3 StartRoot 3 a b squared EndRoot)
Option A
B
16 a b squared (RootIndex 3 StartRoot 3 a EndRoot) minus 45 a squared b squared (RootIndex 3 StartRoot 3 b EndRoot)
Option B
C
Negative 7 a b (RootIndex 3 StartRoot 3 a b squared EndRoot)
Option C
D
8 a b (RootIndex 3 StartRoot 3 a b squared EndRoot) minus 15 a b squared (RootIndex 3 StartRoot 3 a b EndRoot)
Option D
8

What is the following sum?

Question illustration
A
7 (RootIndex 10 StartRoot x squared y EndRoot)
Option A
B
7 (RootIndex 10 StartRoot x Superscript 4 Baseline y squared EndRoot)
Option B
C
7 (RootIndex 5 StartRoot x squared y EndRoot)
Option C
D
7 (RootIndex 5 StartRoot x Superscript 4 Baseline y squared EndRoot)
Option D
9

What is the simplified form of the following expression? Assume and

Question illustration
A
7 a c (RootIndex 4 StartRoot a b squared EndRoot)
Option A
B
7 (RootIndex 4 StartRoot a b squared EndRoot)
Option B
C
Negative 7 (RootIndex 4 StartRoot a b squared EndRoot)
Option C
D
Negative 7 a c (RootIndex 4 StartRoot a b squared EndRoot)
Option D
10

Wyatt’s eye-level height is 120 ft above sea level, and Shawn’s eye-level height is 270 ft above sea level. How much farther can Shawn see to the horizon? Use the formula , with d being the distance they can see in miles and h being their eye-level height in feet.

Question illustration
A
mi
Option A
B
mi
Option B
C
mi
Option C
D
mi
Option D

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