round 8067 to the nearest tenth
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ATI TEAS 7

TEAS Math Practice Test

1. Round 8.067 to the nearest tenth.

Correct answer: A

Rationale: To round 8.067 to the nearest tenth, you look at the digit in the hundredth place, which is 6. Since 6 is equal to or greater than 5, you round up the digit in the tenth place. Therefore, 8.067 rounded to the nearest tenth is 8.1. Choice B (8.1) is incorrect as it duplicates the correct answer. Choice C (8) is incorrect as it does not account for the decimal part. Choice D (8.11) is incorrect as it rounds the number to the nearest hundredth, not the nearest tenth.

2. Which is bigger, a mile or a kilometer? What's the conversion factor?

Correct answer: A

Rationale: A mile is bigger than a kilometer. The correct conversion factor is 1 mile = 1.609 km. This means that one mile is equivalent to approximately 1.609 kilometers. Choice B is incorrect because a mile is bigger than a kilometer, and the conversion is not 1 km = 1.609 miles. Choice C is incorrect as the conversion factor provided is inaccurate; 1 mile is not equal to 1.5 km. Choice D is incorrect as it states that a kilometer is bigger, which is not true according to the actual conversion factor.

3. At the peak of a baseball's trajectory, which of the following forces is acting on the ball?

Correct answer: A

Rationale: At the peak of a baseball's trajectory, the ball momentarily stops moving upwards before it starts to fall back down. During this moment of temporary rest, the only force acting on the ball is the gravitational force pulling it downward towards the Earth. The force of air resistance is negligible at this point because the ball is momentarily stationary, and air resistance requires motion to be significant. Therefore, the correct answer is that only the gravitational force is acting on the ball at the peak of its trajectory. Choices B, C, and D are incorrect because air resistance does not have a significant effect when the ball is at its peak and momentarily stationary.

4. What is the scientific term for the study of genes and their role in disease?

Correct answer: D

Rationale: Genomic medicine is the scientific discipline that specifically focuses on the study of genes and their involvement in disease processes. It seeks to understand how variations in an individual's genes can influence their predisposition to certain diseases or affect their response to treatment. This field plays a crucial role in personalized medicine by utilizing genetic information to tailor healthcare decisions and interventions to individual patients. Molecular biology, biochemistry, and evolutionary biology, while related to genetics in various ways, do not have the primary focus on the role of genes in disease as genomic medicine does.

5. What are the building blocks of proteins?

Correct answer: C

Rationale: Proteins are macromolecules made up of long chains of amino acids. Amino acids are the building blocks of proteins and are linked together through peptide bonds to form polypeptide chains, which then fold into specific three-dimensional structures to carry out various functions in the body. Sugars (choice A) are the building blocks of carbohydrates, fatty acids (choice B) are the building blocks of lipids, and nucleotides (choice D) are the building blocks of nucleic acids like DNA and RNA. Therefore, the correct answer is amino acids (choice C), as they are specifically responsible for protein synthesis.

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