An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element?
ОА. 10
ов. 20
ос. зо
ООО
ор. о
OE. 200

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

Find the area between y=e^x and y=e^2x over [0,1]

How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?