Answer:
the first one :)
Step-by-step explanation:
just trust me
Answer:
a,b=4,-2
Step-by-step explanation:
Subtract:
a-a+4b-10b=-4-(-16)
-6b=-4+16
-6b=12
b=-2.
Plug in:
a+4(-2)=-4
a-8=-4
a=4.
Hope this helps plz hit the crown :D
Answer:
true
Step-by-step explanation:
the sum remains same if order is changed
General equation of a cosine function:

, where a is the amplitude and

is the period.
Hence, a = 2 and

Thus, the equation is