Which option below gives the formula of k(x) = g(x) × h(x)?

k(x) = 2^x + 1

k(x) = x 2^x - 1

k(x) = 2^x - 1

k(x) = x 2^x + 1

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.

20

step-by-step explanation:

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

2y+y=5

add 2y and y