HESI A2 Math Practice

Correct Answer: C

Rationale: To solve 8x = x^2, we rearrange the equation to x^2 - 8x = 0. Factoring gives x(x-8) = 0. So, x = 0 or x = 8. Therefore, the correct answer is C (16). Choices A, B, D are incorrect as they do not satisfy the equation x^2 = 8x.

Correct Answer: A

Rationale: To subtract fractions, we need a common denominator. In this case, the least common multiple of 6 and 4 is 12. So, 5/6 becomes 10/12 and 3/4 becomes 9/12. Subtracting, 10/12 - 9/12 = 1/12, which is the correct answer (A). The other choices are incorrect because they do not result from the proper subtraction of the fractions using a common denominator. Choice B simplifies to 1/12 but is not the correct calculation. Choice C (1/2) and Choice D (1/8) are unrelated to the subtraction of the given fractions.

Correct Answer: B

Rationale: To convert Fahrenheit to Celsius, we use the formula: C = (F - 32) / 1.8. Plugging in 98.6 for F gives C = (98.6 - 32) / 1.8 = 37. Therefore, the correct answer is B: 37 Celsius. Choice A (35 Celsius) is incorrect as it is too low. Choice C (38 Celsius) is incorrect as it is too high. Choice D (36.5 Celsius) is incorrect as it does not match the calculated conversion.

Correct Answer: C

Rationale: To find the divisor, we use the formula Dividend = Divisor x Quotient. Given Dividend = 12 and Quotient = 4, we substitute these values into the formula: 12 = Divisor x 4. Solving for Divisor, we get Divisor = 12 / 4 = 3. Therefore, the correct answer is C (4). Choice A (3) is incorrect because 12 divided by 3 is 4, not the given quotient of 4. Choice B (6) is incorrect because 12 divided by 6 is 2, not the given quotient of 4. Choice D (9) is incorrect because 12 divided by 9 is 1.33, not the given quotient of 4.

Correct Answer: D

Rationale: To convert ounces to pounds, divide the number of ounces by 16 (since 1 pound = 16 ounces). So, 176 ounces ÷ 16 = 11 pounds. This makes option D the correct answer. Option A (15 pounds) is incorrect as it is not the result of the conversion calculation. Option B (10 pounds) and option C (12 pounds) are also incorrect as they do not align with the accurate conversion of 176 ounces to pounds.