The clubhouse has a water tank from which hikers fill their water jugs before walking the trail. The tank is a 5-gallon cylindri
2 answers:
Answer:
The answer is 19.20 inches
Step-by-step explanation:
Given is :
The tank is a 5-gallon cylindrical container with a height of 2 feet and a radius of 4 inches.
The inch measurement along the height of the tank is as 2 feet for 5 gallons, or 2.5 gallons per foot.
So, volume per inch is = gallons per inch.
Now the volume calculation according to the geometric cylinder shape is not necessary.
After the 1 gallon was removed, the water level will be at:
=
= inches.
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Answer:
The correct option is (A).
Step-by-step explanation:
The multiple linear regression equation is given by, , where <em>α</em> = constant and <em>β</em>
= slope coefficients of regression line.
To test if there is a important relationship amid <em>X</em> and <em>Y</em>, we use the <em>t</em>-statistic test.
The <em>t</em>-statistic for regression coefficient analysis is given by,
The regression equation for test scores dependent upon the two explanatory variables, the student-teacher ratio and the percent of English learners is:
A <em>t</em>-test for the significance of the regression coefficient of variable student-teacher ratio (STR) is conducted.
The test statistic is found to be, <em>t</em> = 2.56.
The regression coefficient of variable STR is, 1.10.
Compute the standard error of the regression coefficient as follows:
The standard error of the regression coefficient is 0.43.
Thus, the correct option is (A).