D771 / D 771 Final Exam (Latest Update
) Quantitative Literacy |
Questions & Answers | Grade A | 100%
Correct - WGU
Question 1: What is a unit in the context of quantitative literacy?
Answer: A value related to a specific quantity
Rationale: A unit assigns a numerical value to a measurement, such as meters for length or
grams for mass.
Question 2: What is the bottom number of a fraction called?
Answer: Denominator
Rationale: The denominator indicates the number of equal parts in a whole, located below the
fraction line.
Question 3: What defines a function in mathematics?
Answer: A relation where each input has one output
Rationale: A function maps each input to exactly one output, defining a specific relationship.
Question 4: What is the process of earning interest on both principal and accumulated interest?
Answer: Compounding
Rationale: Compounding involves earning interest on the initial amount and previously earned
interest.
Question 5: What is the formula for the volume of a cylinder?
Answer: V = πr²h
Rationale: The volume of a cylinder is calculated as π times the radius squared times the height.
Question 6: What must be consistent when adding measurements in an equation?
Answer: Units must be the same
,Rationale: Measurements must be converted to the same unit for accurate addition or
subtraction.
Question 7: What is the slope-intercept form of a linear equation?
Answer: y = mx + b
Rationale: In this form, m is the slope, and b is the y-intercept of the line.
Question 8: What is the formula for the area of a rectangle?
Answer: A = l × w
Rationale: The area of a rectangle is calculated by multiplying its length by its width.
Question 9: What is the probability of rolling a 5 on a six-sided die?
Answer: 1/6
Rationale: There is one favorable outcome (5) out of six possible outcomes, so P = 1/6.
Question 10: What does a negative slope indicate on a graph?
Answer: Decreasing relationship
Rationale: A negative slope shows that as the x-value increases, the y-value decreases.
Question 11: How many significant figures are in the number 0.00810?
Answer: 3
Rationale: Leading zeros are not significant; the digits 8, 1, and 0 after the decimal are
significant.
Question 12: What is the formula for simple interest?
Answer: I = PRT
Rationale: Simple interest is calculated as principal (P) times rate (R) times time (T).
Question 13: What is the perimeter of a rectangle with length 8 cm and width 5 cm?
Answer: 26 cm
Rationale: Perimeter = 2(length + width) = 2(8 + 5) = 26 cm.
, Question 14: What is a variable in an algebraic equation?
Answer: A symbol representing an unknown value
Rationale: Variables, like x or y, represent quantities that can vary in equations.
Question 15: What is the formula for the circumference of a circle?
Answer: C = 2πr
Rationale: The circumference is calculated as 2 times π times the radius.
Question 16: What is a coefficient in an equation?
Answer: The number multiplying a variable
Rationale: Coefficients scale variables, such as 4 in 4x.
Question 17: What is the probability of flipping heads on a fair coin?
Answer: 1/2
Rationale: There are two equally likely outcomes (heads or tails), so P = 1/2.
Question 18: What is the formula for the area of a circle?
Answer: A = πr²
Rationale: The area of a circle is π times the radius squared.
Question 19: What is the solution to the equation 2x + 5 = 13?
Answer: x = 4
Rationale: Subtract 5 (2x = 8), then divide by 2 (x = 4).
Question 20: What is a characteristic of a normal distribution?
Answer: Symmetrical bell-shaped curve
Rationale: A normal distribution is symmetrical, with most data near the mean.
Question 21: What is the formula for compound interest?
Answer: A = P(1 + r/n)^(nt)
) Quantitative Literacy |
Questions & Answers | Grade A | 100%
Correct - WGU
Question 1: What is a unit in the context of quantitative literacy?
Answer: A value related to a specific quantity
Rationale: A unit assigns a numerical value to a measurement, such as meters for length or
grams for mass.
Question 2: What is the bottom number of a fraction called?
Answer: Denominator
Rationale: The denominator indicates the number of equal parts in a whole, located below the
fraction line.
Question 3: What defines a function in mathematics?
Answer: A relation where each input has one output
Rationale: A function maps each input to exactly one output, defining a specific relationship.
Question 4: What is the process of earning interest on both principal and accumulated interest?
Answer: Compounding
Rationale: Compounding involves earning interest on the initial amount and previously earned
interest.
Question 5: What is the formula for the volume of a cylinder?
Answer: V = πr²h
Rationale: The volume of a cylinder is calculated as π times the radius squared times the height.
Question 6: What must be consistent when adding measurements in an equation?
Answer: Units must be the same
,Rationale: Measurements must be converted to the same unit for accurate addition or
subtraction.
Question 7: What is the slope-intercept form of a linear equation?
Answer: y = mx + b
Rationale: In this form, m is the slope, and b is the y-intercept of the line.
Question 8: What is the formula for the area of a rectangle?
Answer: A = l × w
Rationale: The area of a rectangle is calculated by multiplying its length by its width.
Question 9: What is the probability of rolling a 5 on a six-sided die?
Answer: 1/6
Rationale: There is one favorable outcome (5) out of six possible outcomes, so P = 1/6.
Question 10: What does a negative slope indicate on a graph?
Answer: Decreasing relationship
Rationale: A negative slope shows that as the x-value increases, the y-value decreases.
Question 11: How many significant figures are in the number 0.00810?
Answer: 3
Rationale: Leading zeros are not significant; the digits 8, 1, and 0 after the decimal are
significant.
Question 12: What is the formula for simple interest?
Answer: I = PRT
Rationale: Simple interest is calculated as principal (P) times rate (R) times time (T).
Question 13: What is the perimeter of a rectangle with length 8 cm and width 5 cm?
Answer: 26 cm
Rationale: Perimeter = 2(length + width) = 2(8 + 5) = 26 cm.
, Question 14: What is a variable in an algebraic equation?
Answer: A symbol representing an unknown value
Rationale: Variables, like x or y, represent quantities that can vary in equations.
Question 15: What is the formula for the circumference of a circle?
Answer: C = 2πr
Rationale: The circumference is calculated as 2 times π times the radius.
Question 16: What is a coefficient in an equation?
Answer: The number multiplying a variable
Rationale: Coefficients scale variables, such as 4 in 4x.
Question 17: What is the probability of flipping heads on a fair coin?
Answer: 1/2
Rationale: There are two equally likely outcomes (heads or tails), so P = 1/2.
Question 18: What is the formula for the area of a circle?
Answer: A = πr²
Rationale: The area of a circle is π times the radius squared.
Question 19: What is the solution to the equation 2x + 5 = 13?
Answer: x = 4
Rationale: Subtract 5 (2x = 8), then divide by 2 (x = 4).
Question 20: What is a characteristic of a normal distribution?
Answer: Symmetrical bell-shaped curve
Rationale: A normal distribution is symmetrical, with most data near the mean.
Question 21: What is the formula for compound interest?
Answer: A = P(1 + r/n)^(nt)
