Answer:
y=3/10;X=-7/10
Step-by-step explanation:
put y=x+1 into where you find y.
solve for X which is -7/10
and put -7/10 into the second equation and solve for y. which is also =3/10
Answer:
D.
Step-by-step explanation:
Compound interest formula is:
When compounded annually;
=> ....(1)
When compounded semi annually means rate = x/2 and n = 2.
=> .... (2)
Now, subtracting 1 from 2 we get ;
=
Hence, option D is correct.
Answer:
The standard equation is y=ax^2+bx+k and the vertex way is y=a(x-h)(x-h)+x
so the coordinate for x is -b/2a, for your problem a=-4 b=-16 so the coordinate for x is -(-16)/(2*(-4))=-2. Now you have to replace x=-2 in your equation y=-4(-2)^2-16(-2)-11= 5.
The vertex is (-2, 5)
Step-by-step explanation: