TEAS Practice Test Math

Correct Answer: A

Rationale: The correct answer is A: One. When the number 1 is raised to any power, the result is always 1. This is because any number raised to the power of 1 is equal to that number itself. In this case, 1 raised to any power will always be 1. Summary: Choice B (Itself) is incorrect because raising 1 to any power does not result in the number itself, but always in 1. Choice C (Zero) is incorrect as any number raised to the power of 0 is 1, not 0. Choice D (Two) is incorrect as it is not possible for 1 raised to any power to equal 2.

Correct Answer: C

Rationale: To calculate the 16% gratuity on a $58.60 bill, you multiply the bill amount by 0.16 (16%). $58.60 x 0.16 = $9.38. Therefore, the estimated gratuity is $9.38 (Choice C). Incorrect Answers: A: $8.48 - Incorrect, this is not the correct calculation for a 16% gratuity on $58.60. B: $6.40 - Incorrect, this is the calculation for a 11% gratuity on $58.60. D: $7.00 - Incorrect, this is the calculation for a 12% gratuity on $58.60.

Correct Answer: A

Rationale: The correct answer is A: One. When the number 1 is raised to any power, the result is always 1. This is because any number raised to the power of 1 is equal to that number itself. In this case, 1 raised to any power will always be 1. Summary: Choice B (Itself) is incorrect because raising 1 to any power does not result in the number itself, but always in 1. Choice C (Zero) is incorrect as any number raised to the power of 0 is 1, not 0. Choice D (Two) is incorrect as it is not possible for 1 raised to any power to equal 2.

Correct Answer: C

Rationale: The correct answer is C: As elevation increases, temperature decreases. This is because of the negative correlation between elevation and temperature. As elevation increases (going higher above sea level), the temperature tends to decrease due to various factors like lower air pressure and thinner atmosphere. This relationship is observed in mountains where higher elevations have colder temperatures. Explanation of incorrect choices: A: As elevation decreases, temperature remains the same - Incorrect because the relationship is negative correlation, not no correlation. B: As elevation decreases, temperature decreases - Incorrect because the negative correlation implies that as elevation decreases, temperature would increase. D: As elevation increases, temperature increases - Incorrect because the negative correlation indicates that as elevation increases, temperature decreases.

Correct Answer: A

Rationale: To find the expression for the length of the rectangle in terms of x, we first note that the length is six less than two times the width. Therefore, the expression for the length would be 2x - 6. This is because the length is equal to 2 times the width (2x) minus 6. Therefore, option A (2x - 6) is the correct answer. Option B (6-2x) is incorrect because it represents the width minus 2 times the width, which is not the correct relationship. Option C (6x-2) is incorrect because it represents 6 times the width minus 2, which is not the correct relationship. Option D (3x-4) is incorrect because it represents 3 times the width minus 4, which does not match the given relationship between the length and the width.