Q. If angle A and angle B are supplementary, and angle A measures 75 degrees, what is the measure of angle B?
A.
105 degrees
B.
75 degrees
C.
45 degrees
D.
90 degrees
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Solution
Supplementary angles sum to 180 degrees. Therefore, angle B = 180 - 75 = 105 degrees.
Correct Answer:
A
— 105 degrees
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Q. If angle A and angle B are supplementary, which of the following is true?
A.
Angle A + Angle B = 90 degrees
B.
Angle A + Angle B = 180 degrees
C.
Angle A - Angle B = 180 degrees
D.
Angle A = Angle B
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Solution
By definition, supplementary angles add up to 180 degrees.
Correct Answer:
B
— Angle A + Angle B = 180 degrees
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Q. If angle A is 30 degrees and angle B is its complement, what is the measure of angle B?
A.
60 degrees
B.
90 degrees
C.
30 degrees
D.
150 degrees
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Solution
The complement of an angle is found by subtracting it from 90 degrees. Thus, angle B = 90 - 30 = 60 degrees.
Correct Answer:
A
— 60 degrees
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Q. If a^0 = 1 for any non-zero number a, what can be inferred about the expression 5^0?
A.
It equals 0.
B.
It equals 1.
C.
It is undefined.
D.
It equals 5.
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Solution
According to the exponent rule, any non-zero number raised to the power of zero equals 1.
Correct Answer:
B
— It equals 1.
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Q. If a^0 = 1 for any non-zero number a, which of the following is true?
A.
0^0 is also equal to 1.
B.
1^0 is equal to 0.
C.
Any number raised to the power of 0 is undefined.
D.
Only positive numbers can be raised to the power of 0.
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Solution
By convention, 0^0 is often defined as 1 in combinatorics, although it can be considered indeterminate in other contexts.
Correct Answer:
A
— 0^0 is also equal to 1.
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Q. If a^0 = 1 for any non-zero number a, which of the following statements is true?
A.
0 raised to any power is also 1.
B.
Any number raised to the power of zero is zero.
C.
Only positive numbers can be raised to the power of zero.
D.
The exponent zero indicates the multiplicative identity.
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Solution
The exponent zero indicates the multiplicative identity, meaning any non-zero number raised to the power of zero equals one.
Correct Answer:
D
— The exponent zero indicates the multiplicative identity.
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Q. If a^3 * a^(-2) = a^x, what is the value of x? (2023)
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Solution
Using the property of exponents, a^3 * a^(-2) = a^(3 - 2) = a^1, hence x = 1.
Correct Answer:
A
— 1
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Q. If a^3 * b^2 = 64 and a = 2, what is the value of b? (2023)
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Solution
Substituting a = 2, we have 2^3 * b^2 = 64, which simplifies to 8b^2 = 64. Thus, b^2 = 8, leading to b = 4.
Correct Answer:
B
— 8
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Q. If a^3 = b^2, which of the following is true?
A.
a = b^(2/3)
B.
b = a^(3/2)
C.
a^2 = b^(3/2)
D.
b^3 = a^2
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Solution
From a^3 = b^2, we can express b in terms of a as b = a^(3/2).
Correct Answer:
B
— b = a^(3/2)
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Q. If a^m * a^n = a^p, what is the value of p?
A.
m + n
B.
m - n
C.
m * n
D.
m / n
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Solution
According to the laws of exponents, when multiplying like bases, we add the exponents: p = m + n.
Correct Answer:
A
— m + n
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Q. If a^m * a^n = a^p, which of the following is true?
A.
m + n = p
B.
m - n = p
C.
m * n = p
D.
m / n = p
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Solution
The property of exponents states that when multiplying like bases, you add the exponents: m + n = p.
Correct Answer:
A
— m + n = p
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Q. If a^x = b^y and a = b, what can be inferred about x and y?
A.
x = y
B.
x > y
C.
x < y
D.
x and y are unrelated
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Solution
If a = b, then a^x = b^y implies x must equal y for the equality to hold.
Correct Answer:
A
— x = y
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Q. If f(x) = 3x^2 + 2x - 5, what is f(1)?
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Solution
Substituting x = 1 into the function gives f(1) = 3(1)^2 + 2(1) - 5 = 3 + 2 - 5 = 0.
Correct Answer:
B
— 1
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Q. If log_2(8) = x, what is the value of x?
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Solution
Since 8 is 2^3, log_2(8) equals 3.
Correct Answer:
C
— 3
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Q. If log_2(x) + log_2(4) = 5, what is the value of x? (2023)
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Solution
log_2(x) + 2 = 5 implies log_2(x) = 3, thus x = 2^3 = 8.
Correct Answer:
A
— 16
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Q. If log_3(27) = x, what is the value of x?
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Solution
Since 27 is 3^3, log_3(27) = 3.
Correct Answer:
C
— 3
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Q. If log_a(b) = c, which of the following is equivalent to this expression?
A.
a^c = b
B.
b^c = a
C.
c^a = b
D.
a^b = c
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Solution
The expression log_a(b) = c can be rewritten in exponential form as a^c = b.
Correct Answer:
A
— a^c = b
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Q. If log_a(b) = c, which of the following is equivalent?
A.
a^c = b
B.
b^c = a
C.
c^a = b
D.
b^a = c
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Solution
The definition of logarithms states that if log_a(b) = c, then a raised to the power of c equals b, hence a^c = b.
Correct Answer:
A
— a^c = b
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Q. If log_a(b) = x, which of the following is equivalent to b?
A.
a^x
B.
x^a
C.
log_a(x)
D.
a * x
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Solution
By the definition of logarithms, if log_a(b) = x, then b = a^x.
Correct Answer:
A
— a^x
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Q. If log_b(x) = y, which of the following statements is true?
A.
b^y = x
B.
y^b = x
C.
x^b = y
D.
b^x = y
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Solution
The definition of logarithms states that if log_b(x) = y, then b raised to the power of y equals x, hence b^y = x.
Correct Answer:
A
— b^y = x
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Q. If Partner A contributes 60% of the capital and Partner B contributes 40%, how should profits be divided if they agree to split based on capital contribution?
A.
60% to A and 40% to B
B.
50% to A and 50% to B
C.
70% to A and 30% to B
D.
40% to A and 60% to B
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Solution
Profits should be divided in accordance with their capital contributions, which are 60% for A and 40% for B.
Correct Answer:
A
— 60% to A and 40% to B
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Q. If Partner A contributes 60% of the capital and Partner B contributes 40%, how should profits be divided if they agree to split them equally?
A.
60% to Partner A and 40% to Partner B
B.
50% to each partner
C.
70% to Partner A and 30% to Partner B
D.
40% to Partner A and 60% to Partner B
Show solution
Solution
Despite the capital contribution, the partners agreed to split profits equally, hence 50% to each.
Correct Answer:
B
— 50% to each partner
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Q. If Partner A contributes 60% of the capital and Partner B contributes 40%, how should profits be divided if not stated otherwise?
A.
Equally among partners
B.
In the ratio of their capital contributions
C.
Based on the time invested in the business
D.
According to a pre-agreed percentage
Show solution
Solution
In the absence of any other agreement, profits are typically divided in the ratio of capital contributions.
Correct Answer:
B
— In the ratio of their capital contributions
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Q. If Partner A contributes 60% of the capital and Partner B contributes 40%, how should profits be divided if they agree to split them based on capital contribution?
A.
60% to A and 40% to B
B.
50% to A and 50% to B
C.
70% to A and 30% to B
D.
40% to A and 60% to B
Show solution
Solution
Profits should be divided in accordance with their capital contributions, so A receives 60% and B receives 40%.
Correct Answer:
A
— 60% to A and 40% to B
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Q. If Partner A contributes 60% of the capital and Partner B contributes 40%, how should profits be divided if they agreed to split based on capital contribution?
A.
60% to A and 40% to B
B.
50% to A and 50% to B
C.
70% to A and 30% to B
D.
40% to A and 60% to B
Show solution
Solution
Profits should be divided in accordance with their capital contributions, hence 60% to A and 40% to B.
Correct Answer:
A
— 60% to A and 40% to B
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Q. If set A = {1, 2, 3, 4} and set B = {3, 4, 5, 6}, what is the difference A - B?
A.
{1, 2}
B.
{3, 4}
C.
{5, 6}
D.
{}
Show solution
Solution
The difference A - B includes elements in A that are not in B, which are {1, 2}.
Correct Answer:
A
— {1, 2}
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Q. If set A = {1, 2, 3, 4} and set B = {3, 4, 5, 6}, what is the intersection of sets A and B? (2023)
A.
{1, 2}
B.
{3, 4}
C.
{5, 6}
D.
{1, 2, 5, 6}
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Solution
The intersection of sets A and B includes the elements that are common to both sets. Therefore, the intersection is {3, 4}.
Correct Answer:
B
— {3, 4}
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Q. If set A = {1, 2, 3} and set B = {2, 3, 4}, what is A - B? (2023)
A.
{1}
B.
{2, 3}
C.
{3, 4}
D.
{}
Show solution
Solution
A - B represents the elements in A that are not in B. Thus, A - B = {1}.
Correct Answer:
A
— {1}
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Q. If set A = {x | x is an even number less than 10} and set B = {x | x is a prime number less than 10}, what is A ∩ B?
A.
{2, 4, 6, 8}
B.
{2}
C.
{2, 3, 5, 7}
D.
{2, 3, 5, 7, 4, 6, 8}
Show solution
Solution
The intersection A ∩ B includes elements that are both even and prime, which is {2}.
Correct Answer:
B
— {2}
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Q. If set A contains the elements {1, 2, 3, 4} and set B contains the elements {3, 4, 5, 6}, what is the intersection of sets A and B?
A.
{1, 2}
B.
{3, 4}
C.
{5, 6}
D.
{1, 2, 3, 4, 5, 6}
Show solution
Solution
The intersection of sets A and B is the set of elements that are common to both sets. Therefore, the intersection is {3, 4}.
Correct Answer:
B
— {3, 4}
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