first, consider that 25 = 5^2, and -25 = -1*25 = -1*5^2.
Then, you can write:
![\sqrt[]{-25}=\sqrt[]{(-1)(25)}=\sqrt[]{(-1)(5^2)}=5\sqrt[]{-1}=5i](https://tex.z-dn.net/?f=%5Csqrt%5B%5D%7B-25%7D%3D%5Csqrt%5B%5D%7B%28-1%29%2825%29%7D%3D%5Csqrt%5B%5D%7B%28-1%29%285%5E2%29%7D%3D5%5Csqrt%5B%5D%7B-1%7D%3D5i)
because i = √-1.
Hence, the answer is 5i
<span>2C +5(c - 5) =10
</span><span>2C +5C - 25 =10
7C = 35
C = 5</span>
Answer:
ok
Step-by-step explanation:
The area of the triangle is
A = (1/2)bh
= (1/2)(3 ft)(6 ft)
= 9 ft^2
That triangular area is not carpeted, so the carpet area is
72 ft^2 -9 ft^2 = 63 ft^2.
Answer:
The answer to the equation is: 4.648