I need help plz this is for a test

A

Step-by-step explanation:

So they've told you that the volume can be found using the equation . They've also indirectly told you what s is: 2/5 yards.

All you need to do now to find the volume is substitute the value of s=2/5 yards into the equations they gave you: .

so:

V = .

   = ()^3

So to solve that:

2^3 = 8 (same as 2x2 x2 )

5^3 = 125 (same as 5 x 5 x 5)

So now you have the fraction 8/125, so the answer is A: 8/125 cubed yards.

hope that helped : )

you would use (d.) the law of cosines or a^2 = b^2 + c^2 – 2bc(cos a)

, b^2 = a^2 + c^2 – 2ac(cos b), or c^2 = a^2 + b^2 - 2ab(cos c). you wouldn't use b. the law of sines as it is mostly effective when 1side and 2angles are given. a and c aren't the answer for they are the improper versions of the law of cosines. hope this is .

x=6 and x=3

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