Answer:
(x+5) (x+5)
Step-by-step explanation:
1) You need to find two numbers that multiply to give you 25 but add up to 10.
2) This would be 5 and 5 as 5 times 5 gives you 25. Also, 5 plus 5 gives you 10.
3) to get x square you do x times x.
4) So: (x+5) (x+5)
Answer:
its simple greatest number less that 400 is 399
Answer:
24 units ²
Step-by-step explanation:
In this problem, we are given the circumference of a triangle (after finding the perimeter) and want to find the area of a circle with that circumference. Since the area of a circle is a function based on its radius, we can use the circumference to find the radius to find the area.
First, we can figure out the perimeter of the triangle, which is equal to the sum of its sides. The perimeter is 6+4+7.21 = 17.21 units.
Next, the circumference of a circle is equal to π * diameter = π * 2 * radius. Using 3.14 for π and r for radius, we get
3.14 * 2 * r = 17.21
6.28 * r = 17.21
divide both sides by 6.28 to isolate r
r ≈ 2.74
Furthermore, to find the area from the radius, we can use
area = πr². Plugging 2.74 in for r, we get
2.74² * 3.14 = area
≈23.6, rounding up to 24 units ²
