Why is 1 + (−5) equal to −4? (1 point)
because it is 5 units to the right of 0 on a horizontal number line
because it is 5 units to the right of 1 on a horizontal number line
because it is 5 units to the left of 1 on a horizontal number line
because it is 5 units to the left of 0 on a horizontal number line

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables