Answer:
4
Step-by-step explanation:
The theorem is a+b=c.
So 6+?=10
And that is 4 because 6+4 is 10.
Well if we had a four sided polygon with the sides of x1, x2, x3, x4. Where the perimeter is: (x1 + x2 + x3 + x4), A similar polygon will have proportional sides. Their sides would be > kx1, kx2, kx3, kx4.....sooo... The perimeter is: (kx1 + kx2 + kx3 + kx4) > k(x1 + x2 + x3 + x4) therefore the ratio is the same because the perimeter and sides are the same. So 6:1
Hope this helps!
9514 1404 393
Answer:
9.70 seconds
Step-by-step explanation:
The zero of the equation can be found using the quadratic formula.
ax² +bx +c = 0
x = (-b ±√(b² -4ac))/(2a)
We are only interested in the positive value of x, so this will be ...
x = (-147 -√(147² -4(-16)(80)))/(2(-16)) = (147 +√2679)/32
x ≈ 9.7028 ≈ 9.70 . . . . seconds
The rocket will hit the ground after about 9.70 seconds.