Answer:
a. Simplify each term. 49/2+0
Add 49/2 and 0.
49/2
The result can be shown in multiple forms.
Exact Form:
49/2
b. Replace the variable a with −13 in the expression.
−(−1/3)²b²−3(−1/3)³b²
Replace the variable b with −1 in the expression.
−(−1/3)²(−1)²−3(−1/3)³(−1)²
Simplify each term. −1/9+1/9 = 0
Combine fractions. 0
Step-by-step explanation:
First question
1:C 2:D 3:B 4:D
second question
0-2+5
Answer:
It should be 40%
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
cool ok byeeeeeeeeeee
Correct answer is: actual wingspan of airplane is 6 inches.
Solution:-
We are given that wingspan is 'a' feet and tail span is 'b' feet in a scale drawing.
And we are also given that tail span is 2 inches that is b=2 inches and 
Let us plugin the b value in above equation.

Multiplying with 2 on both sides.
a=3X2=6 inches.
Hence actual wingspan of airplane is 6 inches.