Answer:
x=21/5
Step-by-step explanation:
5x:9 = 7:3
Turn the ratios into fractions:
5x/9 = 7/3
Then cross mutiply
15x=63
x=21/5
Answer:
E) An observational study using a stratified sample.
Step-by-step explanation:
This study is not an experiment because the customers were not subjected to any treatment but just observation from those selected. Also, the sampling method used was stratified sampling because we see that random samples were selected independently from two unique populations which are population of those that purchased computers and those that offer tech support.
Therefore the correct option is E.
Answer:
y=2x-2
Step-by-step explanation:
in slope intercept form we need make in this formula..
y=Mx+c
You'll do just fine, just make sure to study and have some sleep, okay?
Answer:
There are two zeros.
Step-by-step explanation:
