What is a necessary step for constructing perpendicular lines through a point on a line?

draw a line that intersects the first line at an acute angle using a straightedge.
draw a ray that intersects the first line at an acute angle using a straightedge.
draw arcs on either side of a given point on the line.
draw arcs on either side of a given point off the line.

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

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