Answer:
7 - (-12) = 7 + 12 = 19
Step-by-step explanation:
- (-12) is a double negative which means that the minus signs cancel out causing it to to be a positive 12
5 is not the answer because 7 + 12 is 19
The order of a matrix is m×n where m is the number of rows and n is the number of columns.
can you count and find what are m and n here?
The measures of two angles have a sum of 90º if and only if the angles are complements.
if the angles are complementary they have to equal 90 otherwise they are not complementary
