A section of a rectangle is shaded. The area of the shaded section is 63 square units. What
is the value of x?
7
X
O 9 units
O 11 units
O 18 units
o 21 units
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What is the missing step in this proof ?

Consider the following equation. 1/2x^3+x-7=-3sqrtx-1 approximate the solution to the equation using three iterations of successive approximation. use the graph below as a starting point. a. b. c. d.

Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 − 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 − 6