Answer:
the answer is :the answer
Step-by-step explanation:
the answer is obvioulsy what ever the answer is,
From the chord theorem we know that:

so:

Answer C.
Answer:
x=10
y=30
Step-by-step explanation:
x=-2y+70
x=-2*3x+70
x=-6x+70
7x=70
x=10
y=3x
y=3*10
y=30
Z = (x - mu)/sigma
z = (6.19 - 3.77)/3.39
z = 0.71386430678467
z = 0.71
The approximate z score, rounded to two decimal places, is 0.71