Answer:
How to reflect a triangle around the line y=x
Step-by-step explanation:
Y can be found by setting the 3 angles in the bottom triangle equal to 180 degrees like so:
45 + 55 + y = 180
100 + y = 180 (Simplify)
y = 80 (Subtract 100 from both sides)
Angles x and y are opposite angles, so they are equal to each other. This means that x = 80 degrees also.
Answer: She isn't correct.
Step-by-step explanation: The BODMAS rule must be strictly followed and as such gives different answers to the two expressions.
(12-3)*2 basically gives:
9*2 (Dealing with the bracket first)
18.
While 12-(3*2) while dealing with the bracket first will give:
12-6; which would eventually give
6.
11 because 275÷25 is 11. 11 calculators would cost 275 in total
