Answer: C
we know the ratio 45:45:90 and x:x:x root of 2
in this case 8 is x root of 2
so,
other sides are 8/ root of 2
hence,
we get 4 root of 2
Step-by-step explanation:
2/5 is closest to 1/2
5/8 is closest to 1/2
1/2 + 1/2 = 1
Answer: 5x2-2x-7
Step-by-step explanation:
(4x2 + 3x - 1) + (x2 - 5x - 6)
=4x2+3x-1+x2-5x-6
=5x2-2x-7