Answer:
y is 6.5 because it's kind of a ratio, you just need to find out what number to divide them by or multiply them by in this case, it was 13÷2 =6.5
Answer:
-2;12
Step-by-step explanation:
it's too easy!
Domain is everything below 0. Range is all real numbers. It is a function as it passes the vertical line test.
Answer:
Step-by-step explanation:
Given
Required
Determine an equivalent expression
Express 81 as 
Apply law of indices
Hence:
Since the order matters, it's a permutation of 7 letters, but mind you in
MOROCCO. you have 3 O's and 2 C's, Hence the arrangements are:
⁷P₇ /(3!2!) = 7!/(3!2!) = 5040/(3!2!) = 420 arrangements
