Carlos is using a number line to add another integer to –4. He begins by showing –4 on the number line, as shown below. Carlos adds the other integer on the number line and says that the sum is negative. A number line going from negative 5 to positive 5. The area between negative 4 to 0 is highlighted. Which is true of the number Carlos added to –4? The number must be a negative integer. The number must be a positive integer. The number could be 3 or any integer less than 3. The number could be 4 or any integer greater than 4.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?