Answer:
Top left.
Step-by-step explanation:
Fold the three squares together, then each triangle up.
When you divide numbers, you make the value smaller. So subtract the exponents will make the value with that base smaller.
Answer:
B
Step-by-step explanation:
Integration by parts will help here. Letting

and

, you end up with

and

. Now


For the remaining integral, setting

gives

, so

Putting everything together, you end up with
Answer:
10
Step-by-step explanation:
From past data:
Fraction of lily sold :
Total flowers / number of lily
Total flowers = 14
Number of lily = 7
Fraction of lily = 14 /7 = 1/2
Going by these ;
Expected number of lilies in the next 20 bouquets sold :
Fraction of lily * number of flower in bouquet
1/2 * 20
= 10 lilies