Answer is C only. When you increase X, the f(x) is going downwards.
10+.04(15)(.5)=10.30. 5+.12(15)(.5)=5.9. 10.3-5.9=4.4 the difference is 4.40 :)
You have to calculate the air, a=h*b/2 so the answer is d)
Answer:
5.5
Step-by-step explanation:
Add the two then divide by 2
7.5 +3.5= 11
11÷2= 5.5