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# Ninth Grade (Grade 9) Exponents Questions

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Grade 9 Exponents
Simplify.
$x^30/x^-10$
1. $x^20$
2. $x^10$
3. $1/x^10$
4. $x^40$
Grade 9 Exponents
Simplify.
$(-3x^4y^2)^3$
1. $-27x^12y^6$
2. $-27xy$
3. $-27x^7y^$
4. $-27x^7y^6$
Grade 9 Exponents CCSS: HSA-SSE.B.3c
Evaluate: $x^{0}$
1. $0$
2. $1$
3. $x$
4. $x^2$
5. None of the above.
Grade 9 Exponents CCSS: HSN-RN.A.2
Simplify the expression: $-5y^3 + 2y^2 - 6y - 10y^2 + 10y^3 + y$
1. $5y^3 - 8y^2 - 5y$
2. $-5y^3 + 8y^2 + 5y$
3. $15y^3 + 12y^2 + 7y$
4. $-15y^3 - 12y^2 - 7y$
Grade 9 Exponents
Simplify.
$(-4m^2n^3)^2$
1. $-4m^4n^5$
2. $-16m^4n^6$
3. $16m^4n^6$
4. $16m^2n^3$
Grade 9 Exponents
Simplify.
$-3xy^4*2x^2y^5$
1. $-6x^3y^9$
2. $-6x^2y^9$
3. $-1x^2y^20$
4. $-1x^3y^9$
Grade 9 Exponents
Simplify.
$2m^3 *4m^2$
1. $8m^6$
2. $8m^5$
3. $6m^6$
4. $6m^5$
Grade 9 Exponents
Simplify: $(x^10)/(8x^5).$
1. $(x^5)/8$
2. $(1)/(8x^5)$
3. $8x^5$
4. $(8)/(x^5)$
Grade 9 Exponents CCSS: HSN-RN.A.2
Simplify: $(32a^4b^2)/(8a^3b^2).$ Choose the best answer.
1. $4ab^0$
2. $4a$
3. $(4)/(16ab^4)$
4. $4ab^4$
Grade 9 Exponents CCSS: HSN-RN.A.2
Simplify $(a)/(b^2) * (b^3)/(a).$
1. $a^2b^5$
2. $a^0b^1$
3. $b$
4. $b^3$
Grade 9 Exponents
Simplify: $(3^2)/(2^3).$
1. $(6)/(6)$
2. $0$
3. $(9)/(8)$
4. $(6)/(5)$
Grade 9 Exponents CCSS: HSN-RN.A.1
What is the reciprocal of $b^4?$
1. $1/b^4$
2. $b^(-4)$
3. $1/(b^(-4)$
4. $b^(1/4)$
Grade 9 Exponents
Find x.

$3^x = 729$
1. x = 3
2. x = 4
3. x = 5
4. x = 6
Grade 9 Exponents CCSS: HSF-LE.A.1c
The graph of exponential growth is described best by the following:
1. The graph is a horizontal line.
2. The graph is a vertical line.
3. The graph drops from the left to the right.
4. The graph raises from the left to the right.
Grade 9 Exponents
Simplify.
$(9 x^4 y ^5)/(6 x^2y^10)$
1. $(9 x^2 y^5)/(6)$
2. $(3x^2y^5)/(2)$
3. $(3 x^2)/(2y^5)$
4. $(3x^2 )/(2y^-5)$
Grade 9 Exponents
Simplify.
$(3m n^4)^3$
1. $9m^3 n^7$
2. $9m^4n^7$
3. $27m^4n^7$
4. $27m^3 n^12$
Grade 9 Exponents CCSS: HSF-LE.A.1c
A graph of exponential decay is best described as follows:
1. It is a horizontal line.
2. It is a vertical line.
3. It drops from the left to the right.
4. It raises from the left to the right.
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