Answer:
15.43
Step-by-step explanation:
A and C have two identical real roots (x=0). B has only complex roots. That leaves D.
Answer:
m=98°
K=82°
Step-by-step explanation:
I am 100% sure if you need the explanation tell me
First, you must get the r by itself.
=15
Now, multiply both sides by 3 to get the r completely by itself and get the answer.
r=45.
Answer:
60
Step-by-step explanation:
because half of children is 50. 120÷50=60