Answer:
Question 5:
a) 65 degrees
b) 11
Question 6:
a) 15.6
b) 6.4
Question 7:
a) 10
b) 20
Question 8:
a) EF = 14.4
Question 9:
a) x = 6
b) y = 22.5
Step-by-step explanation:
ANSWER
EXPLANATION
The circumference of a circle is calculated using the formula:
where r=11 meters is the radius of the circle.
Let us substitute the radius into the formula to obtain,
This simplifies to:
When we substitute
We get
to the nearest hundredth.
The area of a trapezoid is found using the formula, A = ½ (a + b) h, where 'a' and 'b' are the bases (parallel sides) and 'h' is the height (the perpendicular distance between the bases) of the trapezoid.
Answer:
The first one
Step-by-step explanation:
Partition the set A into 4 subsets:
{1, 8}, {2, 7}, {3, 6}, and {4, 5},
each consisting of two integers whose sum is 9. If 5 integers are selected from A,
then by the Pigeonhole Principle at least two must be from the same subset. But
then the sum of these two integers is 9.
