Answer:
3x+3
Step-by-step explanation:
You would just add the three sides so you would get x-3+x+x+6 and when you simplify you would get 3x+3 which would be the answer
Answer:
A
Step-by-step explanation:
Answer:
50%
Step-by-step explanation:
Recall : When given a normal or Symmetric distribution, the mean of the distribution is at the centre with 0.5 or 50% of the distribution to either side (right and left) of the distribution.
Hence, if the mean = 21 ; then the percentage of student body with atleast 21 years is the percentage to the left of the distribution, which is 50%.
Therefore, P(x ≤ 21) = 0.5 = 50%
Answer:
<h2>36°</h2>
Step-by-step explanation:
We know that angles BOC and AOB are complementary angles, that is, the sum 90°. Additionally, we know that
and 
, which can be expressed as
Let's solve for 
Using this vale, we find the measure of angle AOB
Therefore, the answer is 36°.
