The most reliable cues for determining the emotions that infants are experiencing are a. reflex reactions b. vocalizations c. body movements d. facial expressions Clear my choice

\( A=\left(\begin{array}{ll}6 & 7 \\ 8 & 5\end{array}\right) \) and \( B=\left(\begin{array}{cc}5 & 4 \\ -7 & 3\end{array}\right) \)

Erika becomes upset when her father leaves. When her father is present, Erika approaches, follows, and climbs on him in preference to others. Erika is most likely ir Bowlby's phase. a. "clear-cut" attachment b. preattachment c. "attachment-in-the-making" d. formation of a reciprocal relationship

What are the two main reasons the longshore workers went on strike? Increase in pay, better health care Shorter work hours, better health care Increase in pay, restricting automation Increase in pay, shorter work hours

Dada la función \( f(x)=x+5 \), encuentra el límite cuando \( x \) tiende \( a-2 \) \[ \lim _{x \rightarrow-2} x+5= \]

8. A quadrilateral is translated 5 units right and 3 units down on a coordinate plane. Which expressions could be used to find one of the coordinates of the vertices of the image? Select all that are correct. \( \begin{array}{ll}\text { (A) } x-3 & \text { (D) } y-3 \\ \text { (B) } x-5 & \text { (E) } y+3 \\ \text { (C) } x+5 & \text { (F) } y+5\end{array} \)