<em><u>Answer:</u></em>
True
<em><u>Step-by-step explanation:</u></em>
So, again, from the most right column, we can add 5, -6, and -2 to get -3. We now know that every row or column must be equal to -3.
The question is asking if the number square below is -3. We found out from above that is -3 so it's true.
Answer:
37
Step-by-step explanation:
37
15 divide 30 by 2 and you have your answer
Answer:
m = 10 , n = 5
Step-by-step explanation:
using the cosine and tangent ratio in the right triangle and the exact values
cos45° = 
and tan45° = 1 , then
cos45° = 
= 
= ( cross- multiply )
m = 5 × = 5 × 2 = 10
-----------------------------------------
tan45° = 
= 
= 1 , then
n = 5
Y= 12 - x
27 + 3( 12 - x ) = 2x
