9514 1404 393
Answer:
10 +8i
Step-by-step explanation:
You add these the same way you would if they were considered to be polynomials.
(7 +2i) +(3 +6i) = (7 +3) +(2 +6)i = 10 +8i
You can subtract 3 from 23 and add it to 297 to make the equation 10 + 300.
From there the answer should be 310. Hope this helps!
The answer is $240.
If you round each amount to the nearest ten you get $130.00, $60.00, and 50.00. When you add all of those together you get an estimated amount of $240.
If it is perpendicular to the line 14x-7y=4, then we know our line has the opposite and inverse slope of that line. Solving for y of the first line, we get y=2x-(4/7). All we care about is the coefficient of the x term, because that will give us our slope. The slope of the first line is 2, so the slope of out line is the opposite and inverse of that slope, which -(1/2).
Plugging into our slope- point formula, where y1=(-9), x1=2, and m=(-1/2), then:
y-(-9)=(-1/2)(x-2)
y+9=(-1/2)x+1
y=(-1/2)x-8
Hope this helps!
