Let T = the distance, in miles, a tire lasts
T ~ N(70000,4400<span>²</span>)
P(T

75000)
= P(Z

)
= P(Z

)
≈ P(Z

1.14)
= 1 - P(Z < 1.14)
≈ 1 - 0.8729
= 0.1271
Answer:
Step-by-step explanation:
From the problem statement, we can setup the following equation:

where
is the number of people that would show up to the zoo on a given day.
Dividing both sides by 7 will give us the answer:

Answer:
15 classes
Step-by-step explanation:
Let
x -----> the number of class
y ----> the total amount in charges
we know that
The total charge is equal to the number of class multiplied by the additional fee plus the membership fee (only members)
so
<em>Members</em>
-----> equation A
<em>Non Members</em>
-----> equation B
Equate equation A and equation B
Solve for x

Answer:
complementary angles
Step-by-step explanation:
∠1 and ∠2 form a right angle and are complementary, that is they sum to 90°