Which statement about basic emotions is true? a. Newborns' emotional expressions closely resemble those of older children and adults. b. Infants are born with the ability to interpret basic emotions. c. Babies' earliest emotional life consists of attraction to pleasant stimulation and withdrawal from unpleasant d. Babies must leam how to display well-organized and specific emotional expressions on their faces

Seventh grade A. 1 Understanding integers vec Eve is flying her new kite at the park. A gust of wind causes the kite to drop 5 meter What integer represents the change in the kite's height? meters

4. Calcola l'area di un rettangolo sapendo che il semiperimetro è \( 32,5 \mathrm{~cm} \) e la base è \( 4 / 9 \) dell'altezza.

Example 11 Find the truth set of the equations i) \( 2^{2 x+1}-5\left(2^{x}\right)+2=0 \) ii) \( 3^{2 x+3}-4\left(3^{x+1}\right)+1=0 \) iii) \( 3^{2 x}-30\left(3^{x-2}\right)+1=0 \) iv) \( 2^{2 x}+3\left(2^{x}\right)-4=0 \) v) \( 2^{2 x}-5\left(2^{x}\right)+2=0 \) vi) \( 3^{2 x+1}-26\left(3^{x}\right)-9=0 \) vii) \( 4^{x}-6\left(2^{x}\right)-16=0 \) viii) \( 2^{2 x}=5 \) ix) \( 4^{x}-2^{x+1}-3=0 \) x) \( 4\left(3^{2 x+1}\right)+17\left(3^{x}\right)-7=0 \)

A lift with a mass of 2000 kg is hoisted from a mine shaft. Calculate the work done if the shaft is \( 1,2 \mathrm{~km} \) deep.

7) \( [2,7]-12,7[=\ldots . .2 \),