Answer:
Step-by-step explanation:
f(x)= - 3x
g(x) = x+2
(f•g)(x)
f(x) • g(x)
plug in
-3x • x+2
-3x(x+2)
distribute the -3x
hope this helps!
Answer I blive is is 8
Step-by-step explanation:
7b + 4 (-b +3)
= 7b +4*(-b)+ 4*3
= 7b -4b+ 12
= 3b + 12
The final answer is 3b+12.
Hope this helps~
Answer:
(C)90 – 10y = 5x
Step-by-step explanation:
Given:
x = number of times she hiked the 5-mile trail
- Then, total Distance covered on the 5-mile trail =5x
y = number of times she hiked the 10-mile trail
- Then, total Distance covered on the 10-mile trail =10y
Maria hikes a total of 90 miles
Therefore, total distance hiked can be represented by the equation:
5x+10y=90
Subtract 10y from both sides, we have:
5x=90-10y
This is option C.
Answer:
That would be sina.
Step-by-step explanation:
sin(a+b) = sinacosb + cosasinb
sin(a-b) = sinacosb - cosasinb
Adding we get sin(a+b) + sin(a-b) = 2sinaccosb
so sinacosb = 1/2sin(a+b) + sin(a-b)