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Vinil7 [7]
3 years ago
12

Write the product in standard form. ( 4 + 7i)( 7 + 7i)

Mathematics
1 answer:
Helen [10]3 years ago
7 0
The answer is a) -21 - 77i
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An observer (O) spots a plane (P) taking off from a local airport and flying at a 33° angle horizontal to her line of sight and
docker41 [41]

Answer:

the distance of the Bird (B) from the plane (P)  is = 10779  ft

Step-by-step explanation:

From the given information:

a diagrammatic representation is attached below for better understanding and solution to the question.

From the diagram;

Let the Bird (B) be represent as A

The plane (P) be represented by B

The observer be represented by O

and the tower T be represented by C

we will see that:

\overline {AB}  \ \| \ \overline {OC}

Also;

\angle ABO = \angle BOC = 33^0

AO = BC = 7000

Let consider the trigonometry of  triangle BAO

tan θ = opposite/adjacent

tan 33° = 7000/x

0.6494 = 7000/x

x = 7000/0.6494

x = 10779.18

x = 10779  ft    ( to the nearest whole number)

Thus; the distance of the Bird (B) from the plane (P)  is = 10779  ft

7 0
3 years ago
The percentahee of the cup that is filled with water after 3 seconds
oee [108]
Im sorry i dont understand the question.. Is there another form of the question you can give me?
6 0
3 years ago
-4x - 84 = 2x + 24 <br> ??????
yarga [219]

Answer:

x= -54

Step-by-step explanation:

-4x - 84 = 2x + 24

-4x + 2x= 24 + 84

-2x= 108

x= 108 ÷ (-2)

x= -54

5 0
2 years ago
Look at the picture below and answer correctly so i can mark you as brainliest.
andreev551 [17]

Answer:

{14,13,6,0}

Step-by-step explanation:

It’s basically the y value :)

4 0
2 years ago
Read 2 more answers
What is 3x195 I don't know!!
Dmitry_Shevchenko [17]
3x195=585 Hope this helped! :)
6 0
2 years ago
Read 2 more answers
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