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Chapter 7 - Exponents
Test Description: Topics covered in Algebra 1 Chapter 7
Instructions: Answer all questions to get your test result.
1) What is the area of a square with a side of 5x inches?
A
(5)x^2 inches squared
B
None of the options shown
C
(5x)^2 inches squared
D
5x^2 inches squared
2) What is 35,000 in scientific notation?
A
3.5 x 10^4
B
3.5 x 10^3
C
35 x 10^-3
D
35 x 10^3
3) What does it mean for a term to have a negative exponent?
A
You are dividing by the same factor the number of times as in the exponent.
B
The term belongs in the opposite part of the fraction (top or bottom) it is currently in.
C
Both are correct
D
Neither is completely correct
4) Solve 3^(2x) = 27^(4/3)
A
2/3
B
4
C
8
D
2
5) Light travels about 2.9979 x 10^8 m/sec. About how long would it take light from the sun 1.5 x 10^11 meters from Earth to arrive?
A
5.0 x 10^2
B
2.0 x 10^-3
C
2.0 x 10^-2
D
5.0 x 10^3
6) For what expression is 3xy^3z^6 the square root? Hint: What is the power of a square root? Make that the power on each answer choice and see which matches the problem.
A
6xy^3z^6
B
9x^2y^6z^12
C
9x^3y65z^8
D
3x^2y^6z^12
7) Which equation represents the nth term of the arithmetic sequence -6, -1, 4, 9, ... ?
A
an = -5n - 1
B
an = 5n - 11
C
an = -5n + 11
D
an = 5n - 1
8) What is the rate isotopes are lost for the equation 345(0.45)^4?
A
55%
B
45%
C
4%
D
0.45
9) What does the number 6 represent in the following compound interest formula? 6(1 + .3/2)^20
A
6 years
B
$6 was originally deposited in the account.
C
The interest compounds 6 times each year.
D
The interest rate is 6%.
10) A regular prism has a length 3t^7, width t^2z^4, height 9z^8. What is the volume?
A
3t^14z^12
B
39t^72z^48
C
27t^14z^32
D
27t^9z^12
*select an answer for all questions
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