Adding and Subtracting Radicals Answers
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1
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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?
A
m
B
m
C
m
D
m
2
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What is the simplified form of the following expression? Assume and
A
7 a c (RootIndex 4 StartRoot a b squared EndRoot)
B
7 (RootIndex 4 StartRoot a b squared EndRoot)
C
Negative 7 (RootIndex 4 StartRoot a b squared EndRoot)
D
Negative 7 a c (RootIndex 4 StartRoot a b squared EndRoot)
3
What is the following sum in simplest form?
A
3 StartRoot 8 EndRoot + 3 StartRoot 2 EndRoot
B
5 StartRoot 42 EndRoot
C
9 StartRoot 2 EndRoot
D
5 StartRoot 2 EndRoot + StartRoot 32 EndRoot
4
What is the following difference?
A
Negative 3 a b (RootIndex 3 StartRoot 3 a b squared EndRoot)
B
16 a b squared (RootIndex 3 StartRoot 3 a EndRoot) minus 45 a squared b squared (RootIndex 3 StartRoot 3 b EndRoot)
C
Negative 7 a b (RootIndex 3 StartRoot 3 a b squared EndRoot)
D
8 a b (RootIndex 3 StartRoot 3 a b squared EndRoot) minus 15 a b squared (RootIndex 3 StartRoot 3 a b EndRoot)
5
What is the following sum?
A
6 StartRoot 10 EndRoot
B
8 StartRoot 10 EndRoot
C
6 StartRoot 5 EndRoot
D
8 StartRoot 5 EndRoot
6
What is the following sum?
A
8 x cubed y Superscript 4 Baseline (RootIndex 3 StartRoot x y EndRoot)
B
15 x Superscript 6 Baseline y Superscript 8 Baseline (RootIndex 3 StartRoot x y EndRoot)
C
15 x cubed y Superscript 4 Baseline (RootIndex 3 StartRoot x y EndRoot)
D
8 x Superscript 6 Baseline y Superscript 8 Baseline (RootIndex 3 StartRoot x y EndRoot)
7
What is the following sum? Assume and
A
x squared y squared StartRoot y EndRoot minus 2 x y squared StartRoot x EndRoot
B
2 x y StartRoot y EndRoot + 2 x y squared StartRoot x EndRoot
C
4 x y StartRoot x Superscript 5 Baseline y Superscript 8 Baseline EndRoot
D
2 x y StartRoot x y EndRoot
8
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.
A
mi
B
mi
C
mi
D
mi
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