Answer:
Geologists use the following tests to distinguish minerals and the rocks they make: hardness, color, streak, luster, cleavage and chemical reaction. A scratch test developed by a German mineralogist Friedrich Mohs in 1822 is used to determine mineral hardness.
Tax= sales price x tax percent
Tax= $40 x 6.5%
Convert % decimal to decimal: 6.5% by 100
Tax= 40 x 0.065
Tax= $2.60
Answer: sales tax is $2.60
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Answer:
The correct answer is C. A stationary front that will cause an extended period of clouds or precipitation means packing rain gear and planning for precipitation during your trip.
Explanation:
The stationary front is a meteorological front on the border of cold and warm air, more common in summer. It is most often the limit of polar and mid-latitude air masses. It usually lasts in place for a maximum of a few days. The stationary front resembles a warm front or a slow cold front. The weather in the stationary front area is variable, often cloudy and often still rainy. In a few days, the stationary front will turn into either a cold or warm front, or its clouds will disintegrate.
The method of analysis does not classify variables as dependent or independent is cluster analysis.
Cluster analysis is a method that is used to process data in statistics. In cluster analysis, data is classified into groups based on similar characteristics the data share. For example, if cluster analysis is used to group students, students may be divided into clusters based on their gender or class.
An independent variable is the variable that is manipulated by the researcher. It is the variable that is tested to determine its effect on the dependent variable.
The dependent variable is the variable that is being measured in an experiment.
To learn more about clustering, please check: brainly.com/question/20432243
The exact volume of this cylinder is equal to 225π cubic centimeters.
<h3>How to calculate the volume of a cylinder.</h3>
Mathematically, the volume of a cylinder is given by this formula:
<u>Where:</u>
<u>Given the following data:</u>
Height of cylinder = 9 cm.
Diameter of cylinder = 10 cm.
Radius = 
Substituting the given parameters into the formula, we have;
Volume = 
Read more on volume of a cylinder here: brainly.com/question/21367171
