Answer: Option 'A' is correct.
Step-by-step explanation:
Since we have given that
Rational numbers are those numbers which can be written as p/q form or it must be non terminating but recurring number.
-13 can be written as p/q form as
is a rational number because of its form.
81 can be written in p/q form as
But √2 is non terminating and non recurring number.
Hence, √2 is not a rational number.
Therefore, Option 'A' is correct.
Answer:
Part A. At least 6 hours
Part B. In less than 2.5 hours Elijah will be behind Mercedes
Part C. In more than 2.5 hours Elijah will be ahead Aubrey
Step-by-step explanation:
D = distance
v =speed
t = time
Formula connecting D, v and t:
Part A.
Steve's speed:
Distance: at least 21 miles
Time: unknown, so
It would take Steve at least 6 hours to walk at least 21 mi on Day 1.
Part B.
Mercedes's speed:
Elijan's speed:
Elijan's Distance walked: miles
Mercedes's Distance walked: miles
Time: x hours
Mercedes is 2 miles ahead, so
Elijan will be behind when
In 2.5 hours Elijan will catch up Mercedes, and in less than 2.5 hours Elijah will be behind Mercedes.
Part C.
Aubrey's speed:
Elijan's speed:
Elijan's Distance walked: miles
Aubrey's Distance walked: miles
Time: x hours
At the beginning of Day 3, Elijah starts walking at the marker for Mile 42, and Aubrey starts walking at the marker for Mile 42.5.
Elijan will be ahead of Aubrey when
In 2.5 hours Elijan will catch up Aubrey, and in more than 2.5 hours Elijah will be ahead Aubrey.
Answer:
The surface area of the cylinder is about 954.56 square inches.
Step-by-step explanation:
The total surface area of a cylinder is given by the formula:
Here, we are given that the radius is 8 inches and that the height is 11 inches. We are also using 3.14 for π. So, substitute:
Use a calculator:
The surface area of the cylinder is about 954.56 square inches.
