Dividing and multiplying complex numbers.

1 answer:

6 0

See attached picture for answers. Not 100% sure on the last one

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LenaWriter [7]

Answer:

78.04 square cm

Step-by-step explanation:

Area of shaded region = area of circle - Area of rectangle

$= \pi \: {r}^{2} - l \times w \\ = 3.14 \times {6}^{2} - 7 \times 5 \\ = 3.14 \times 36 - 35 \\ = 113.04 - 35 \\ = 78.04 \: {cm}^{2}$

3 0

2 years ago

Tema [17]

Answer:

a^4 - a^3 + a^2 - 2a - (2)/(a + 1)

4 0

3 years ago

Usimov [2.4K]

K is whatever you want it to be

5 0

3 years ago

Vlada [557]

So you do tan 65 = BC/7

5 0

3 years ago

Xelga [282]

$\huge\mathfrak\blue{AnSwEr}$

$\sf{54 \: km \: = 54000 \: meters}$

5 0

3 years ago