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DerKrebs [107]
1 year ago
13

Find the midpoint between 1 + 9i and 5 — 3i​

Mathematics
1 answer:
stellarik [79]1 year ago
3 0

Answer:

3+3i

Step-by-step explanation:

The mid point formula in a complex plane is for points a+bi and s+ti is

Midpoint = \frac{a+s}{2} +\frac{(b+t)i}{2} \\

For points 1 + 9i and 5 — 3i​

Midpoint = \frac{1+5}{2} + \frac{(9-3)i}{2}

Midpoint = \frac{6}{2} + \frac{6i}{2}

Midpoint = 3 + 3i

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A circle with a radius of 3cm sits inside a circle with a radius of 11cm.
lozanna [386]

Answer:

Area of shaded region = 351.68 cm²

Step-by-step explanation:

Area of a circle = πr²

where r = radius = 3.14

Area of bigger circle = 3.14 × 11²

= 3.14 × 11 × 11

= 379.94cm²

Area of smaller circle = 3.14 * 3²

= 3.14 × 3 × 3

= 28.26cm²

Area of shaded region = Area of bigger circle - Area of smaller circle

= (379.94 - 28.26) cm²

= 351.68 cm²

8 0
3 years ago
What’s 14/20 - 81/90
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Answer: -1/5

Step-by-step explanation:

14/20 - 81/90=

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(7-9)/10=

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D. 1/4 (-x+2)                  

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