Which are the solutions of x2 = –13x – 4? 0, 13 0, –13

9514 1404 393

Answer:

96 cubic feet

Step-by-step explanation:

The volume calculation for the dimensions of 16 ft by 18 ft by 1/3 ft is as follows:

V = LWH

V = (16 ft)(18 ft)(1/3 ft) = 96 ft³

Thus, 96 cubic feet of concrete will be required.

Answer:

(value - mean)/standard deviation.

Now substitute 78 for the value, 84.5 for the mean, and 3.1 for the standard deviation.

Step-by-step explanation:

Answer:

The regression line is not an appropriate model due to the existence of a pattern in the residual plot.

Step-by-step explanation:

A residual plot has been provided for a certain data set.

The residual plot indicates a scatter relationship between x and y.

The plotted points demonstrate that a linear relation is unlikely; it appears to be more parabolic or exponential in nature.

This suggests the regression line is not a suitable model as the residuals do not converge towards 0.

Additionally, a linear trend pattern is absent.

D) The regression line is not a suitable model as it exhibits a pattern in the residual plot.