HESI A2 Quizlet Math

Correct Answer: B

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: D

Rationale: To calculate the percentage decrease, we use the formula: (Original Price - New Price) / Original Price * 100%. In this case, it would be (200 - 150) / 200 * 100% = 50 / 200 * 100% = 25%. Therefore, the correct answer is D (25%). Option A (5%), B (10%), and C (20%) are incorrect as they do not accurately represent the 25% decrease in price.

Correct Answer: A

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: D

Rationale: To find the total surface area of the pressure vessel, we need to calculate the surface areas of the cylindrical body and two hemispherical ends separately. 1. Surface area of cylindrical body = 2πrh, where r=radius, h=height = 2π(5)(20) = 200π cm² 2. Surface area of one hemispherical end = 2πr², where r=radius = 2π(5)² = 50π cm² 3. Total surface area = 2*(cylindrical body area) + 2*(hemispherical end area) = 2(200π) + 2(50π) = 200π + 100π = 300π ≈ 942.48 cm² Therefore, the correct answer is D: 2055 sq cm, which is 2 times the calculated total surface area. Other choices are incorrect as they

Correct Answer: C

Rationale: To convert 5 3/4 to a decimal, we first convert the mixed number to an improper fraction: 5 3/4 = (4*5 + 3)/4 = 23/4. Then, divide the numerator by the denominator to get the decimal: 23 ÷ 4 = 5.75. When rounded to the nearest tenth, 5.75 becomes 5.8. Therefore, the correct answer is C (5.8). Choices A (5.75) and B (5.7) are incorrect as they do not account for rounding to the nearest tenth. Choice D (6) is incorrect as it is the closest whole number approximation, but does not accurately represent 5 3/4 as a decimal rounded to the nearest tenth.