Answer:
28
Step-by-step explanation:
12+[(15-5)]+(9-3)]
PEMDAS
Parentheses first
12+[(10)]+(6)]
Then add
12+10+6
The last statement is true
Answer:
504
Step-by-step explanation:
take 163 and subtract 142 then times by 24
Answer:
see below
Step-by-step explanation:
sqrt(2)+ sqrt(98)
sqrt(2) + sqrt( 2*49)
sqrt(2) + 7sqrt(2)
8 sqrt(2)
If two line segments intersect at 90 degrees, then two line segments are perpendicular.
