Answer: x = 120
Step-by-step explanation:
7th grade has 3 boy out of 10 students
probability of picking a boy is 3/10
8th grade has 9 boys out of 12 students are boys
probability of picking a boy is 9/12 reduced to 3/4
3/10 x 3/4 = 9/40 probability of picking 2 boys
Answer:
Yes, the set of numbers create a Pythagorean triple
Step-by-step explanation:
we know that
If a set of numbers create a Pythagorean triple, then the set of numbers must satisfy the Pythagorean Theorem

where
c is the greater side
a and b are the legs (perpendicular sides)
we have

substitute


----> is true
therefore
Yes, the set of numbers create a Pythagorean triple
Find the difference between the X and Y values goven:
10 - 1 = 9
12 - 3 = 9
15 - 6 = 9
The difference is 9, so the rule is subtracting 9 from the x value:
y = x -9
Now find Y when x is 20:
y = 20-9
y = 11
If the diameter of the smaller circle is 3.5cm, that means the radius is 1.75cm.
The area of the smaller circle is π × 1.75², which is ≈ 9.62112750162.
The diameter of the larger circle is 12.5 cm, so the radius would be half that, which is 6.25cm. The area of the larger circle would be π × 6.25², which is ≈ 122.718463031.
So now that we know the area of the larger circle and the smaller circle, we can find the area of the shaded region by subtracting the area of the smaller circle from the area of the larger circle, which is basically just 122.718463031 - 9.62112750162, which is = 113.097336. The closest answer here is 113.04, hence the answer is 113.04cm².