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stira [4]
2 years ago
15

1) Simplify the expression

Mathematics
1 answer:
bazaltina [42]2 years ago
4 0

Answer:

21 + 12i

Step-by-step explanation:

Given

(3 - 4i)(1 + 5i) - (2 - i) expand the product of factors

= 3 + 11i - 20i² - 2 + i

= 3 + 11i + 20 - 2 + i  collect like terms

= 21 + 12i

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lapo4ka [179]

Answer:

8

Step-by-step explanation:

it is not longer then the red line or equal but is bigger then the green line so there is how i got 8

6 0
3 years ago
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AveGali [126]

Answer:

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Step-by-step explanation:

5 0
3 years ago
The sector of a circle with a 60 millimeters radius has a central angle measure of 30° . What is the exact area of the sector in
ASHA 777 [7]
R = 60
60^2 * pi = 3600 * pi
angle = 30°
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7 0
3 years ago
The area of a parallelogram is 400m2 the base is 25m find the length of the height
icang [17]
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5 0
4 years ago
6-5 solving rational equations 8/x+3=1/x+1
AfilCa [17]

Answer:

x = -5/7

Step-by-step explanation:

8/(x+3)=1/(x+1)

Using cross products

8*(x+1) = 1*(x+3)

Distribute

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Divide by 7

7x/7 = -5/7

x = -5/7

7 0
3 years ago
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