Answer:
A) 145.3 cm^2
Step-by-step explanation:
The formula for the area of a circle is A = π r^2
So to find the area we would plug the radius of 6.8 into the formula
Area = π (6.8)^2
Area = (3.14) (6.8)^2
Area = 145.27
Area = 145.3
Answer:
A, B and C
Step-by-step explanation:
Given any three side lengths of a right triangle, the longest side is the hypotenuse.
The side lengths of a right triangle must satisfy the <u>Pythagorean Theorem. </u>
Pythagorean Theorem: ![Hypotenuse^2=Opposite^2+Adjacent^2](https://tex.z-dn.net/?f=Hypotenuse%5E2%3DOpposite%5E2%2BAdjacent%5E2)
<u>Option A:</u> ![3, 6, \sqrt{45}](https://tex.z-dn.net/?f=3%2C%206%2C%20%5Csqrt%7B45%7D)
![(\sqrt{45})^2=3^2+6^2\\45=36+9\\45=45](https://tex.z-dn.net/?f=%28%5Csqrt%7B45%7D%29%5E2%3D3%5E2%2B6%5E2%5C%5C45%3D36%2B9%5C%5C45%3D45)
True
<u>Option B:</u> 2.5, 6, 6.5
![6.5^2=6^2+2.5^2\\42.25=36+6.25\\42.25=42.25 (TRUE)](https://tex.z-dn.net/?f=6.5%5E2%3D6%5E2%2B2.5%5E2%5C%5C42.25%3D36%2B6.25%5C%5C42.25%3D42.25%20%28TRUE%29)
<u>Option C:</u> ![4, 8, \sqrt{80}](https://tex.z-dn.net/?f=4%2C%208%2C%20%5Csqrt%7B80%7D)
![4, 8, \sqrt{80}\\( \sqrt{80})^2=4^2+8^2\\80=16+64\\80=80 (TRUE)](https://tex.z-dn.net/?f=4%2C%208%2C%20%5Csqrt%7B80%7D%5C%5C%28%20%5Csqrt%7B80%7D%29%5E2%3D4%5E2%2B8%5E2%5C%5C80%3D16%2B64%5C%5C80%3D80%20%28TRUE%29)
Since all are true, the side lengths in Options A, B and C forms a right triangle,
Answer:
(x+6)(x+8)
Step by step explanation:
Because 6 + 8 is the 14 in the middle and 48 is 6 x 8 and you thats all you need just put the x's at the beginning
Answer:
1/5
Step-by-step explanation:
1/4=0.25
1/5=0.20