Question

Dau coroana!!Va roc sa ma ajutati

Answer 1

partea I
1.
3+2*5-12/4=
3+10-3=
13-3=10
2.
A={1,3,4,7}               B={1,2,4,8}
A∩B={1,4}  elementele comune
4.
420⇒P=0
5.
Ma=(3.75+4.25)/2
Ma=8/2=4
6.
11/7+8/7-5/7=19/7-5/7=14/7
7.
P=4l⇒12=4l
l=-12/4=3⇒A=l*l⇒A=4*4=16
8.
23ha=2300000mp
9.
12/5=2.4
Partea II
1.
A={x∈N║15/x∈N}
15/x∈N⇒x∈D15={1,3,15}
15/x=1⇒x=15
15//x=3⇒x=5
15/x=15⇒x=1
A={1,5,15}

2.

trusa=30 ron
1/3*30=10ron(pret trusa)
30-10=20ron(atatia bani mai are mihaela)

3.
(3+3²):2²-2017la puterea0+1la puterea 2016=
(3+9):4-1+1=
12:4-1+1=
3-1+1=3
4.
38:3=10 rest 8