Accuplacer Math College Exam.
What is 2^(5/2) - 2^(3/2) Correct Answer: ** 2√2 **
2^(5-2) can be broken into:
2^4/2 == 2^2 == 4
so 4 2^1/2
or 4√2
2^3/2 can be broken into:
2^1 == 2
2^1/2 == √2
so 2√2
4√2 - 2√2 = 2√2
What is 5! Correct Answer: 5 * 4 * 3 * 2 * 1
What is (2^4) * (2^5) Correct Answer: 2^9
How do you calculate the determinant of a matrix Correct Answer: Imagine a 2x2 cube, where
top left = a
top right = b
bottom left = c
bottom right = d
Determinant == (a/c) - (b/d)
What is the conversion of log\3\(27) = Y Correct Answer: 3^y = 27
What is the conversion of 4^x = 16 Correct Answer: log\4\(16) = x
What is 2√10 * 2√3 Correct Answer: 4√30
Factor (2x^5)-(2x^4)-(40x^3) Correct Answer: (2x^3)(x^2-x-20)
How do you determine if 2 lines are parallel? Correct Answer: Convert to y=mx+b
If both x's are the same, it is parallel
What is the slope of a line that crosses (5,6) and has a y-int of (0,2) Correct Answer: 4/5
James has $10,000. He puts some of his money in a savings account that yields 1% annually. He invests
the rest in bonds that yield 5% annually. If after one year, James earns a total of $400 from both the
savings and bond investment, how much money did he put in his savings account? Correct Answer: *
7500 *
What is 2^(5/2) - 2^(3/2) Correct Answer: ** 2√2 **
2^(5-2) can be broken into:
2^4/2 == 2^2 == 4
so 4 2^1/2
or 4√2
2^3/2 can be broken into:
2^1 == 2
2^1/2 == √2
so 2√2
4√2 - 2√2 = 2√2
What is 5! Correct Answer: 5 * 4 * 3 * 2 * 1
What is (2^4) * (2^5) Correct Answer: 2^9
How do you calculate the determinant of a matrix Correct Answer: Imagine a 2x2 cube, where
top left = a
top right = b
bottom left = c
bottom right = d
Determinant == (a/c) - (b/d)
What is the conversion of log\3\(27) = Y Correct Answer: 3^y = 27
What is the conversion of 4^x = 16 Correct Answer: log\4\(16) = x
What is 2√10 * 2√3 Correct Answer: 4√30
Factor (2x^5)-(2x^4)-(40x^3) Correct Answer: (2x^3)(x^2-x-20)
How do you determine if 2 lines are parallel? Correct Answer: Convert to y=mx+b
If both x's are the same, it is parallel
What is the slope of a line that crosses (5,6) and has a y-int of (0,2) Correct Answer: 4/5
James has $10,000. He puts some of his money in a savings account that yields 1% annually. He invests
the rest in bonds that yield 5% annually. If after one year, James earns a total of $400 from both the
savings and bond investment, how much money did he put in his savings account? Correct Answer: *
7500 *
