Answer:
-3a
Step-by-step explanation:
3(-a)
Expand brackets.
3 × -1a
-3a
Answer:
He needs 9 pages
Step-by-step explanation:
8 will be full and 1 will have 2 extra
36 divided by 4
8 with 2 left over so 9 pages
Answer:
93 degrees
Step-by-step explanation:
first, lets add 38+49 to see the sum
38+49=87
since the sum of all three angles in every triangle equals 180, we can subtract this sum from 180 to get the answer
180-87=93
so the missing angle would be 93
Answer:
5x+y=12
Step-by-step explanation:
10x+2y=-2=5x+y=12
Answer:
u =√6
v =√5
Step-by-step explanation:
u = √(1²+2²+1²) =√(1+4+1) = √6
v = √(1²+2²) =√(1+4) = √5
