pre algebra james madison

Question 1 (5 points)

Express 3.87 × 10^–3 in standard form.

Question 1 options:

	0.000387
	387
	0.00387
	3,870

Question 2 (5 points)

Write the expression using exponents.

(–5) • (–5) • a • a • a • (m + 3) • (m + 3)

Question 2 options:

	((–5) • a • (m + 3))7
	(–5)2a3(m + 3)2
	2 • (–5) + 3 • a + 2 • (m + 3)
	(–5)2 + a3 + (m + 3)2

Question 3 (5 points)

Evaluate the expression. Express the result in scientific notation.

Question 3 options:

Question 4 (5 points)

Write each expression using a positive exponent.

Question 4 options:

Question 5 (5 points)

Find the product or quotient. Express using positive exponents.

Question 5 options:

	1

Question 6 (5 points)

Evaluate if b = –3.

Question 6 options:

	–212
	–500
	–60
	–860

Question 7 (5 points)

Evaluate the expression. Express the result in scientific notation.

(9.08 × 10
⁶) – (2.25 × 10
⁵)

Question 7 options:

	–

Question 8 (5 points)

Find the product or quotient. Express using positive exponents.

Question 8 options:

Question 9 (5 points)

Find the product or quotient. Express using positive exponents.

(–3
m
⁶)(6
m
⁵)

Question 9 options:

	–18m1
	–3m30
	6m11
	–18m11

Question 10 (5 points)

Evaluate x – y² if x = 8 and y = 3.

Question 10 options:

	2
	509
	25
	–1

Question 11 (5 points)

Order each set of numbers from greatest to least.
, 3.6,

Question 11 options:

	, 3.6,
	, , 3.6
	, 3.6,
	3.6, ,

Question 12 (5 points)

The table shows the populations of the world’s most populous countries. Rank the countries in order from most populous to least populous.

2003 Population
Country	Population
USA
China
India

Question 12 options:

	USA, China, India
	USA, India, China
	India, China, USA
	China, India, USA

Question 13 (5 points)

Estimate each cube root to the nearest whole number. Do not use a calculator.

Question 13 options:

	8
	9
	7
	21

Question 14 (5 points)

Evaluate the expression. Express the result in scientific notation.

(9.51 × 10
⁴) + (1.96 × 10
⁵)

Question 14 options:

	–

Question 15 (5 points)

Write the expression using exponents.

(–5)(-5)(-5)(-5)(-5)(-5)(-5)(6)(6)(6)

Question 15 options:

	(–5 + 7) • (6 + 3)
	(–5 × 7) • (6 × 3)
	(7)–5 • (3)6
	(–5)7 • (6)3

Question 16 (5 points)

Find the square root, if possible.

–

Question 16 options:

	–11
	not possible
	110
	–60.5

Question 17 (5 points)

Evaluate 5^x if x = –5.

Question 17 options:

	–25
	–3125

Question 18 (5 points)

Erupting volcanoes are categorized by the volume of lava they emit. The greater the volume of lava, the more severe the volcano. The table shows the Volcanic Explosivity Index (VEI) for five categories of volcanoes. Rank the VEIs in order from the least destructive to the most severe.

Volcanic Explosivity Index
VEI	Volume (m3)
0
1
2
3
4

Question 18 options:

	1, 3, 4, 0, 2
	4, 3, 2, 1, 0
	3, 2, 0, 4, 1
	0, 1, 2, 3, 4

Question 19 (5 points)

Evaluate if m = –4 and n = –2.

Question 19 options:

	18
	216

Question 20 (5 points)

Replace the with <, >, or = to make a true statement.

Question 20 options:

	>
	=
	<
	>

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