Solve the Problem. -A Contractor Needs to Know the Height of a Building

question 159

Multiple Choice

Solve the problem.
-A contractor needs to know the height of a building to estimate the cost of a job. From a point 90 feet away from the base of the building, the angle of elevation to the top of the building is found
To be 42° 17´. Find the height of the building. Round your answer to the hundredths place when
Necessary.

• A)84.75 ft
• B)80.32 ft
• C)81.85 ft
• D)86.08 ft

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Definitions:

Laboratory Experiment

A research method in which variables can be controlled and manipulated in a highly regulated environment to observe the effects on other variables.

Psychological Experiment

An investigation in which a researcher manipulates one or more variables to observe the effect on some behavior or mental process.

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases, indicating an inverse association.

Correlation Coefficients

Statistical measures that describe the extent to which two variables change together, indicating the strength and direction of a linear relationship between them.