Answer:
The first two
Step-by-step explanation:
Do the parenthesis of the first and you will get the original equation.
Multiple the second with 4 and you will get the original equation too.
Answer:
Let f be a function. If any horizontal line intersects the graph of f more than once, then f does not have an inverse. An absolute value function (without domain restriction) has an inverse that is NOT a function. That's why an absolute value function does not have an inverse function。
Answer:
she needs $110
Step-by-step explanation:
Just multiply 200 by 0.45 to get 90 then subtract 90 from 200
Answer:
5:9
Step-by-step explanation:
the ratio of the number of girls to the number of boys who attended the competition is 5:9