HELP ASAP ITS TIMED Marta is solving the equation x2+x=3
by completing the square. What number should be added to both sides of the equation to complete the square?
A
134
B
1
C
14
D
−2

In the diagram below what is the approximate length of the minor arc ab

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.