Answer:
y = 
Step-by-step explanation:
using the addition formula for sine
sin(x + y) = sinxcosy + cosxsiny
then
sinxcosy + cosxsiny =
sinx +
cosx
for the 2 sides to be equal , then
cosy =
and siny = 
then
y =
(
) = 
and
y =
(
) = 
thus y = 
Answer:
1, -6
Step-by-step explanation:
Easiest is just to factor
(x+1)(x-6)=0
Answer:29.4
Step-by-step explanation:
Plz give me brainliest
Answer:
It happens only when they are inversely proportional to eachother.
X = 1/y
6.4$
Solution:
Divide 40 and 100(there must always be 100 when solving percentage) then it would be equal to 0.4
after it Multiply it to 16
so we get 6.4.