Answer:
It would be D because X^2 is different from 3x you would just multiply X^2 by 1 and 3x by 1 to get x^2+3x
Answer:
24.5
Step-by-step explanation:
+_+$+$+$-$-$-$+$+$+$+$+
First you have to find out how much money you have put in this month, so you need to add your two deposits together.
24.61 + 16.49 = $41.10
Now we know that this month you put $41.10 in your account, but there is a total of $72.31 in your account. Now you need to subtract what you put in this month to your total amount.
72.31 - 41.10 = $31.21 was your balance at the beginning of the month.
We are given that:
Model [length = 35 cm; wingspan = 66.9 cm; height = ?]
Actual [length = 21 ft 1 in = 6.43 m; height = 2.74 m; wingspan = ?]
We can solve for the height of the model plane using the given values of the actual plane and by ratio and proportion:
35 cm / height model = 6.43 m / 2.74 m
height model = 14.9 cm
We can also solve for the wingspan of the actual plane:
35 cm / 66.9 cm = 6.43 m / wingspan actual
wingspan actual = 12.30 m
So we can see that the model is:
6.43 m (100 cm / m) / 35 cm = 18.37
18.37 times smaller than the actual plane
