The formula or the area of a trapezoid is (a+b) divided by 2 times height so the answer is 128ft2
Answer:
42
Step-by-step explanation:
To determine a + a² just substitute the value of a.
Given a = 6.
Therefore, a + a² would become 6 + 6² = 6 + 36
= 42
∴ a + a² = 42
To find out how many gram the puppy increase each day,here's what we can do:
weight of day 4 - weight of day 2
=365 - 305
=60g
To comfirm,we can use another pair
weight of day 4 - weight of day 2
=485-425
=60g
From the above,we can see that the puppy increase 60 grams each two days,meaning that it would increase 60÷2=30 gram each day.
We can then find its weight of age of 5 days:
365+30
=395g
Thus the answer is D.395
Hope it helps!
Total money spent is $11425 buying 75 animals
each chicken costs $65 so 50 costed the farmer $3250
each cow costs $45 so 15 cows costed the farmer $675
ducks purchased were 10
to find how much the ducks costs we will add the money spent the farmer and subtract it from the total amount spent.
11425-3250-675=$7500
10 ducks = $7500
so one duck costs 7500/10=$750
the price for each duck is $750