Answer:
4.9
Step-by-step explanation:
Plug in 13 and 2 for each variable separately to get 0.7(13) - 2.1(2). 0.7 multiplied by 13 equals to 9.1 and 2.1 multiplied by 2 equals 4.2. Subtract 4.2 from 9.1 to get your final answer which is 4.9.
Answer:
2
Step-by-step explanation:
Answer:
Step-by-step explanation:
First, you need to get a common denominator.
You can do this by multiplying each fraction by 3 or 4.
See,
4/3 * 4/4=16/12
5/4 * 3/3=15/12
16+15=31
31/12
Answer:
(-20 + 4) (2+7-35) = -19
Step-by-step explanation:
Answer:
Step-by-step explanation:
f(x)=x²+2
a.
f(a)=a²+2+2=a²+4
b.
f(a+2)=(a+2)²+2=a²+4a+4+2=a²+4a+6
c.
f(c+d)=(c+d)²+2=c²+d²+2cd+2
