Answer: +15x
Explanation: Don't be thrown off if a variable like <em>x</em> is introduced in a multiplication problem that involves positives and negatives.
To simplify (+3) (+5x), it's important to understand that a positive times a positive is a positive. So (+3) (+5x) is +15x.
Answer:
180
Step-by-step explanation:
Answer:
20%
Step-by-step explanation:
dosage change from 15 mg/d to 12 mg/d
change= 15-12= 3
change %= 3/15*100%= 20% decrease
Subtract the mean from Jake's score:
520 - 500 = 20
Divide by the standard deviation:
20/60 = 0.33
Jake scored 0.33 standard deviation above the mean.
From the Z-table, 0.33 = 0.6293 = 62.93% of students scored below Jake.
Round to 63%
Is this correct? im not sure about the second ques
