Sirine achète 45 roses blanches et 60 roses rouges. Elle veut former des bouquets contenant le même nombre de roses blanches et de roses rouges.

1) \( -3 \cdot(7-5 \cdot 2)+\sqrt{15 \cdot 3+4}-(-2+5)^{3}= \)

There were 40 people at a party. Each adult ate 5 pies and each child ate 3 pies. The adults ate 128 more pies than the children. (a) How many adults were there at the party? (b) How many pies were eaten by the children?

When the message reaches the receiver, the message must be \( =1 \) point A sender B. Receiver C. Message D. Channel A. Verbal B. Visual C. Audiolingual D. Written

To calculate the percent \( \mathrm{w} / \mathrm{w} \) of Hac in each layer we should know the value of chemical factor and the volume of titration solution or standard solution ( NaOH\( ) \) (end point) we add to each layer. Chemical factor: No. of grams of substances react with one ml of standard solution. \( \mathrm{CH} 3 \mathrm{COOH}+\mathrm{NaOH} \rightarrow \mathrm{CH3COONa}+\mathrm{H} 2 \mathrm{O} \) \( 1 \mathrm{M} . \mathrm{Wt} \). of \( \mathrm{HAC}=1 \mathrm{M} . \mathrm{Wt} \). of NaOH

We found in tutorial 7 (using differentiation) that \( \frac{1}{(1-x)^{3}}=\sum_{k=2}^{\infty} \frac{k(k-1)}{2} x^{k-2} \) fo Verify this by finding the binomial series for \( \frac{1}{(1-x)^{3}} \)