Answer:
4
Step-by-step explanation:
Given :
5c+cd where,
and d=15
Now,
5×
=1+3
=4
Answer is 4
Divide both sides by -3, and replace
with
. Then

Factorize the quadratic in
to get

which in turn means

But
for all real
, so we can ignore the first solution. This leaves us with

If we allow for any complex solution, then we can continue with the solution we ignored:

Answer:
they are already correct first true second true third false and 4th true
Step-by-step explanation:
np brainliest?
Answer:9
Step-by-step explanation:
I looked up the average and it said 9.
Good luck on the rest of quarantine homework! :D
Mark brainliest if u want. ONLY if u want :D