Answer:
Step-by-step explanation:
Let's start by making up as many teams as we can with the 32 student. Given that each team is different, we can make 10 teams of 3 each. (we still have 23 more teams to make).
The last two people make a team of only 2. No matter which student from the 30 other students is picked, the team of two and the one the student is coming from will have one student in common. Though there are more borrowings that take place (many more), the results remain as stated. At least 2 teams will have 1 person in common.
The method is called the pigeon hole method.
Answer:
43.1
Step-by-step explanation:
Look at the picture! Double check my work but I am pretty sure I did it correctly.
-4 yards
Some people find this helpful to picture or draw on a number line. Start at zero, go left to -5. Go 2 more spaces/marks left to -7, then go right three spaces to -4.
Hello!
To find the surface area of the given cylinder, we need to use the formula of the surface area of a cylinder.
The formula for the surface area of a cylinder is SA = 2πrh + 2πr².
In this formula, r is the radius and h is the height.
In the given diagram, we see that the height is 6 meters, and the radius 9 meters. With those values, we can substitute them into our formula and solve for the surface area.
In some cases, you are given the diameter. To find the radius, you would need to divide the diameter by two.
SA = 2π(9)(6) + 2π(9)²
SA = 54(2π) + 2(81π)
SA = 108π + 162π
SA = 270π
SA ≈ 848.2 m²
Therefore, the surface area of the given cylinder is choice A, 848.2 m².
Answer:
x = 5 or 1
Step-by-step explanation:
Square both sides to get
x^2 - 6x + 9 = 4 now subtract four from both sides
x^2 -6x+5 = 0 now factor ( or use quadratic formula)
(x-5)(x-1) = 0 so x = 5 or 1
