Answer:
7
Step-by-step explanation:
Using the exact values for
cos45° = 
and tan60° = 
, then
2(cos²45° + tan²60°)
= 2( ( )² + ( )² )
= 2( 
+ 3 ) ← distribute
= 1 + 6
= 7
Answer: a = 59
Step-by-step explanation:
a = 42 + 17
a = 59
it would be n is greater than or equal to -5
-2n greater than or equal to 10
-n greater than or equal to 5
n greater than or equal to -5
The answer is d I believe
Yang tidak hadir = 12
yang hadir = 40 - 12 = 28 orang
perbandingan = 28 : 40
dibagi dengan 4
7 : 10
jadi perbandingannya 7 : 10 atau 7/10
