10
9x10=90
it has to be 20 words but id k what else to say
Answer:
31°
Step-by-step explanation:
35+23=58
180-58=122
the 122 degree angle is a vertical angle meaning that the angle vertical to it is also 122 degrees
then you do 122+27 to get 149
Lastly 180-149=31
you're answer is 31°
Answer:
The appropriate solution is "259".
Step-by-step explanation:
According to the question,


At 82% CI,

Critical value,

Now,
The sample size will be:
⇒ 
By substituting the values, we get



Because for example 349+567 is something you need to regroup.You start by the ones.9+7=16. You don't always need to regroup though