I think the answer is 3b+6
Remove parenthesis, rearrange, and combine like terms.
7+i-6+4i
1i+4i+7-6
5i+1
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hope it helps
The definition of estimated sum and the actual sum are these: estimated sum means to form an approximate judgment of the total of 2 or more numbers. A<span>ctual sum means the real total of two or more numbers.</span>
Speed: distance traveled in a given time
y=distance ( given in miles).
x = time (given in minutes)
Speed = y/x
y = 39.4x
By rearranging this y/x =39.4 ( is the constant speed). don’t forget this is mile/minutes
There are 4 x 60 minutes in 4 hours
Hence, you are asked the distance (y) in 240 min
y = 39.4x
y = 39.4 miles/minutes x (240) minutes
y = 9456 miles
Yes they are equivalent 17+12=29 and 12+17=29.